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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
H          
                He
Li Be               B C N O F Ne
Na Mg                                                 Al Si P S Cl Ar
K Ca                             Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr                             Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og

Entity Names Starting With The Letter P Structure Reactions
Forming
Reactions
Using
Wikipedia NIST
P
P
3 20 Wikipedia NIST
P
P
Red
1 1 Wikipedia NIST
P (proline) 1 1 Wikipedia NIST
P2
P2
2 Wikipedia NIST
P2H6
P2H6
Wikipedia NIST
P2O3
P2O3
1 2 Wikipedia NIST
P2O5
P2O5
3 8 Wikipedia NIST
P2S3
P2S3
1 Wikipedia NIST
P2S5
P2S5
1 Wikipedia NIST
P3-
P3–
10 Wikipedia NIST
P4
P
3 20 Wikipedia NIST
P4O10
P2O5
3 8 Wikipedia NIST
PA 3 4 Wikipedia NIST
Pa
Pa
NIST
Palladium
Pd
3 6 Wikipedia NIST
Palladium alloy
Palladium
Alloy
NIST
Palladium dichloride
PdCl2
2 5 Wikipedia NIST
Palladium gold
Palladium
Gold
NIST
Palladium hydride
PdH
1 Wikipedia NIST
Palladium on barium sulfate
Pd
on BaSO4
8 NIST
Palladium on CaCO3 poisoned with Pb
Pd + Pb
on CaCO3
Lindlar Cat.
1 Wikipedia NIST
Palladium on carbon
Pd
on C
39 NIST
Palladium white gold
Palladium
White Gold
Wikipedia NIST
Palladium(II) bromide
PdBr2
NIST
Palladium(II) chloride
PdCl2
2 5 Wikipedia NIST
Palladium(II) fluoride
PdF2
NIST
Palladium(II) hexafluoropalladium(IV)
Pd[PdF6]
NIST
Palladium(II) iodide
PdI2
NIST
Palladium(II) ion
Pd2+
4 NIST
Palladium(II) oxide
PdO
Wikipedia NIST
Palladium(IV) fluoride
PdF4
NIST
Palmitic acid
CH3(CH2)14COOH
6 Wikipedia NIST
Palmitoleic acid
Palmitoleic
Acid
Wikipedia NIST
Paracetaldehyde 1 Wikipedia NIST
Paracetamol Wikipedia NIST
Paraffin
Kerosine
1 Wikipedia NIST
Paraformaldehyde
(CH2O)n
1 1 Wikipedia NIST
paraHydrogen
↑H–H↓
Wikipedia NIST
Paraldehyde 1 Wikipedia NIST
Paramorphine Wikipedia NIST
Paraperiodic acid
H5IO6
3 1 Wikipedia NIST
Paris red
Pb3O4
Wikipedia NIST
Pb 6 Wikipedia NIST
Pb(C2H5)4
Pb(CH2CH3)4
1 Wikipedia NIST
Pb(CH2CH3)4
Pb(CH2CH3)4
1 Wikipedia NIST
Pb(MnO4)2
Pb(MnO4)2
1 NIST
Pb(N3)2
Pb(N3)2
2 1 Wikipedia NIST
Pb(NO3)2
Pb(NO3)2
1 2 Wikipedia NIST
Pb(OAc)2
Pb(CH3COO)2
1 Wikipedia NIST
Pb(OAc)4
Pb(OCOCH3)4
2 Wikipedia NIST
Pb2+
Pb2+
3 14 NIST
Pb2O3
Pb2O3
NIST
Pb3(PO4)2
Pb3(PO4)2
1 NIST
Pb3O4
Pb3O4
Wikipedia NIST
Pb4+
Pb4+
1 2 NIST
PbBr2
PbBr2
1 Wikipedia NIST
PbCl2
PbCl2
1 Wikipedia NIST
PbCl4
PbCl4
1 NIST
[PbCl6]2-
[PbCl6]2–
1 NIST
PbCO3
PbCO3
1 Wikipedia NIST
PbCrO4
PbCrO4
1 Wikipedia NIST
PbF2
PbF2
1 Wikipedia NIST
PbF4
PbF4
1 NIST
[PbF6]2-
[PbF6]2–
1 NIST
PbI2
PbI2
1 Wikipedia NIST
PbNa
PbNa
1 Wikipedia NIST
PbO
PbO
1 3 Wikipedia NIST
PbO2
PbO2
4 Wikipedia NIST
PBr3
PBr3
2 2 Wikipedia NIST
PBr5
PBr5
2 Wikipedia NIST
PbS
PbS
1 Wikipedia NIST
PbSO4
PbSO4
1 1 Wikipedia NIST
PCC 2 Wikipedia NIST
PCl3
PCl3
2 19 Wikipedia NIST
PCl5
PCl5
1 9 Wikipedia NIST
PCl5(g)
PCl5(g)
Wikipedia NIST
Pd
Pd
3 6 Wikipedia NIST
Pd on BaSO4
Pd
on BaSO4
8 NIST
Pd on C
Pd
on C
39 NIST
Pd on CaCO3/Pb
Pd + Pb
on CaCO3
Lindlar Cat.
1 Wikipedia NIST
Pd2+
Pd2+
4 NIST
PdBr2
PdBr2
NIST
PdCl2
PdCl2
2 5 Wikipedia NIST
PdF2
PdF2
NIST
PdF4
PdF4
NIST
[PdF6]2-
[PdF6]2–
NIST
PdH
PdH
1 Wikipedia NIST
PdI2
PdI2
NIST
PdO
PdO
Wikipedia NIST
Pd[PdF6]
Pd[PdF6]
NIST
Peacock ore
Cu5FeS4
2 Wikipedia
Peanut oil
Peanut
Oil
2 Wikipedia
Pearl ash
K2CO3
4 2 Wikipedia NIST
Pearson borderline Lewis acid (generic) Wikipedia
Pearson borderline Lewis base (generic) Wikipedia
Pearson hard Lewis acid (generic) Wikipedia
Pearson hard Lewis base (generic) Wikipedia
Pearson soft Lewis acid (generic) Wikipedia
Pearson soft Lewis base (generic) Wikipedia
Pectolite
NaCa2Si3
O8(OH)
Wikipedia
Penbritin Wikipedia NIST
Penicillin (generic) Wikipedia
Pent-1-ene 1 2 Wikipedia NIST
Pentaaquahydroxychromium(III) ion

Cr(H2O)5(OH)]2+

2 NIST
Pentaaquahydroxyiron(III) ion

[Co(NH3)6]2+

1 NIST
Pentaaquathiocyanatoiron(III) ion

[Fe(H2O)5(SCN)]2+

1 NIST
Pentaaquaoxovanadium(IV) ion

[VO]2+
[VO(H2O)5]2+

3 3 NIST
Pentacene Wikipedia NIST
Pentadecane 1 Wikipedia NIST
1,4-Pentadiene NIST
Pentadieny FMO (generic)
Pentadienyl anion NIST
Pentadienyl cation NIST
Pentadienyl radical NIST
Pentaerythritol 1 1 Wikipedia NIST
Pentaerythrityl tetranitrate 1 1 Wikipedia NIST
Pentafluoroiodine
IF5
2 3 Wikipedia NIST
Pentagonal bipyramidal molecular shape (generic) Wikipedia
Pentahydrocobalt(I) ion
[CoH5]4–
1 NIST
Pentalene Wikipedia NIST
Pentalene dianion Wikipedia NIST
Pentamethylene 2 Wikipedia NIST
Pentan-1-ol 2 Wikipedia NIST
Pentan-2-ol 1 1 NIST
Pentan-2-one 1 5 Wikipedia NIST
Pentanal 1 3 Wikipedia NIST
Pentane 3 Wikipedia NIST
2,4-Pentanedione 2 2 Wikipedia NIST
2,4-Pentanedione anion 1 Wikipedia NIST
Pentanenitrile 1 NIST
Pentanoic acid 3 Wikipedia NIST
1-Pentanol 2 Wikipedia NIST
2-Pentanol 1 1 NIST
2-Pentanone 1 5 Wikipedia NIST
Pentasodium triphosphate 1 Wikipedia NIST
Pentasulfide dianion
[S–S–S–S–S]2–
NIST
Pentatin dianion NIST
1-Pentene 1 2 Wikipedia NIST
1-Pentyl radical 2 2 NIST
Peptide (AS/A2 generic) 1 1 Wikipedia
Per-Oxygen Oxidising Agent (generic)
Peracetic acid
CH3COOOH
3 4 Wikipedia NIST
Perbromate ion
[BrO4]
1 Wikipedia NIST
Perchlorate ion
[ClO4]
5 Wikipedia NIST
Perchloric acid
HClO4
4 1 Wikipedia NIST
Perchloroethylene
Cl2C=CCl2
4 Wikipedia NIST
Perchloromethane
CCl4
11 5 Wikipedia NIST
Perfluoroethane
C2F6
1 Wikipedia NIST
Perfluoroethylene
F2C=CF2
1 1 Wikipedia NIST
Perfluoromethane
CF4
4 1 Wikipedia NIST
Period 1 element (generic)
Period 1
Element
Wikipedia
Period 2 element (generic)
Period 2
Element
Wikipedia
Period 3 Chlorides (AS/A2 generic)
Period 3 Element (AS/A2 generic) Wikipedia
Period 3 element (generic)
Period 3
Element
Wikipedia
Period 3 Oxides (AS/A2 generic)
Period 4 element (generic)
Period 4
Element
Wikipedia
Period 5 element (generic)
Period 5
Element
Wikipedia
Period 6 element (generic)
Period 6
Element
Wikipedia
Period 7 element (generic)
Period 7
Element
Wikipedia
Periodate ion
[IO4]
1 Wikipedia NIST
Periodic acid
H5IO6
3 1 Wikipedia NIST
Periodic acid, para
H5IO6
3 1 Wikipedia NIST
Perlon® 1 Wikipedia NIST
Permanganate ion
[MnO4]
2 14 NIST
Peroxide anion, organic (generic)
[ROO]
1
Peroxide ion
O–O
6 Wikipedia NIST
Peroxide, organic (generic)
ROOH
2
1,4-Peroxido-p-menthene-2 1 Wikipedia NIST
Peroxodisulfate(VI) ion 4 NIST
Peroxodisulfuric acid 2 1 NIST
Peroxycarboxylic acid (generic) 1 2
Peroxymonosulfuric acid 2 2 Wikipedia NIST
Perspex 1 Wikipedia NIST
Persulfuric acid 2 2 Wikipedia NIST
Perxenate ion
[XeO6]4–
1 Wikipedia NIST
Perylene 1 Wikipedia NIST
PET
Terylene
2 Wikipedia NIST
Petalite
LiAlSi4O10
1 Wikipedia
PETE
Terylene
2 Wikipedia NIST
Pethidine hydrochloride Wikipedia NIST
PETN 1 1 Wikipedia NIST
Petrol
Gasoline
4 Wikipedia NIST
Petroleum
Crude Oil
13 Wikipedia
Pewter
Pewter
Wikipedia NIST
PF3
PF3
2 1 Wikipedia NIST
PF5
PF5
3 1 Wikipedia NIST
[PF6]-
[PF6]
1 NIST
pH indicator (generic)
Acid-base
Indicator
Wikipedia
Ph2NH 1 1 Wikipedia NIST
Ph3COH 1 Wikipedia NIST
[Ph3C]+ 2 NIST
[Ph3C]- 2 Wikipedia NIST
Ph3P 1 4 Wikipedia NIST
Ph3PO
(C6H5)3P=O
1 Wikipedia NIST
Pharmaceutucal Agent (generic) Wikipedia
PhAsH2 1 NIST
PhBr 4 1 Wikipedia NIST
PhCH2Br 2 1 Wikipedia NIST
PhCH2Cl 1 Wikipedia NIST
PhCH2CN Wikipedia NIST
PhCH2Li NIST
PhCH2NH2 1 Wikipedia NIST
PhCH2OH 5 1 Wikipedia NIST
[PhCH2]+ 4 NIST
PhCH3 6 16 Wikipedia NIST
PhCH=CH2 2 4 Wikipedia NIST
PhCH=CHPh 1 Wikipedia NIST
PhCHO 2 6 Wikipedia NIST
PhCl 5 3 Wikipedia NIST
PhCN 2 3 Wikipedia NIST
PhCOCl 1 Wikipedia NIST
PhCOMe 3 2 Wikipedia NIST
PhCONH2 Wikipedia NIST
PhCOOH 6 2 Wikipedia NIST
PhCOOR Wikipedia
[PhCOO]- 2 2 Wikipedia NIST
[PhCO]+ 3 NIST
Phe 1 1 Wikipedia NIST
Phenakite
Be2SiO4
1 Wikipedia
Phenanthrene 1 Wikipedia NIST
Phene 11 42 Wikipedia NIST
sec-Phenethyl alcohol 1 1 NIST
Phenol 8 10 Wikipedia NIST
Phenol (generic) 1 1 Wikipedia
Phenol red
Phenol
Red
Wikipedia NIST
Phenolphthalein
Phenolphthalein
Wikipedia NIST
Phenothiazine Wikipedia NIST
Phenoxide ion 2 7 NIST
Phenoxide ion (generic) 1 1
Phenyl acetate 1 NIST
Phenyl alkyl ketone (generic) 4 3
Phenyl amide anion 1 Wikipedia NIST
Phenyl ammonium ion (generic) Wikipedia
Phenyl anion 11 Wikipedia NIST
Phenyl anion (generic)
Phenyl arsine 1 NIST
Phenyl arsine anion 1 NIST
Phenyl azo (generic) 1
Phenyl bromide 4 1 Wikipedia NIST
Phenyl carbenium ion 4 NIST
Phenyl cation 4 NIST
Phenyl chloride 5 3 Wikipedia NIST
Phenyl cyanide 2 3 Wikipedia NIST
Phenyl ester (generic) 4 2
Phenyl ethanoate 1 NIST
Phenyl ether NIST
Phenyl ether (generic) 3
N-Phenyl hydroxylamine 1 Wikipedia NIST
Phenyl iodide 3 Wikipedia NIST
Phenyl lithium 2 2 NIST
Phenyl nitranion 1 Wikipedia NIST
Phenyl phosphine anion NIST
Phenyl propyl ketone 2 NIST
Phenyl selenenyl bromide 2 NIST
Phenyl selenium cation 1 NIST
Phenyl silane 1 NIST
Phenyl silyl anion 1 NIST
Phenyl telluride 1 NIST
Phenyl(methyl) radical
Phenyl(methyl)bromide 2 1 Wikipedia NIST
1-Phenyl-1,1,2,2-tetracyanoethane 1 NIST
1-Phenyl-1-butanone 2 NIST
(+/-) 1-Phenyl-2-aminopropane Wikipedia NIST
2-Phenyl-2-methylbutane 1 NIST
3-Phenyl -2-propen-1-ol 2 Wikipedia NIST
Phenylacetylene 1 Wikipedia NIST
Phenylacetylide anion 1 Wikipedia NIST
cis beta-Phenylacrylic acid 1 NIST
trans beta-Phenylacrylic acid 1 Wikipedia NIST
Phenylalanine 1 1 Wikipedia NIST
Phenylalanine, deprotonated 1 Wikipedia NIST
Phenylalanine, protonated 1 Wikipedia NIST
Phenylamine 8 8 Wikipedia NIST
Phenylammonium ion 2 NIST
Phenylbenzene 2 Wikipedia NIST
4-Phenylbutanoic acid 3 NIST
4-Phenylbutyric acid 3 NIST
Phenylcyclohexane 1 NIST
Phenylcyclopropane 1 NIST
1,4-Phenylenediamine 2 NIST
N-Phenylethanamide 2 1 Wikipedia NIST
1-Phenylethanamine 1 NIST
Phenylethanenitrile Wikipedia NIST
1-Phenylethanol 1 1 NIST
Phenylethanone 3 2 Wikipedia NIST
Phenylethanone SeAr intermediate 1 1 NIST
Phenylethene 2 4 Wikipedia NIST
cis-(2-Phenylethenyl)benzene 1 Wikipedia NIST
trans-(2-Phenylethenyl)benzene 1 Wikipedia NIST
(1R)-1-Phenylethyl ethanoate 1 NIST
(1S)-1-Phenylethyl ethanoate 1 NIST
(2-Phenylethyl)benzene 1 NIST
9-Phenylfluorene 1 NIST
9-Phenylfluorene anion 1 Wikipedia NIST
(+/-) Phenylglycolic acid 1 Wikipedia NIST
Phenylhydrazine 1 Wikipedia NIST
Phenylmethane 6 16 Wikipedia NIST
Phenylmethanol 5 1 Wikipedia NIST
Phenylmethyl carbanion 2 Wikipedia NIST
Phenylmethyl lithium NIST
Phenylmethylium ion 4 NIST
Phenyloxonium ion 1 NIST
Phenylphosphine Wikipedia NIST
2-Phenylprop-2-ylium ion NIST
3-Phenylpropan-1-ol 2 NIST
2-Phenylpropane 1 1 Wikipedia NIST
3-Phenylpropenal 3 Wikipedia NIST
Phenylselenide anion 1 2 NIST
Phenylsulfinate ion 2 NIST
Phenyltelluride anion 1 NIST
Phenyl tricyanoethene 1 NIST
PhEt 4 1 Wikipedia NIST
PhF 2 Wikipedia NIST
PhI 3 Wikipedia NIST
PhLi 2 2 NIST
Phlogopite
KMg3(AlSi3O10)
(F,OH)2
Wikipedia
PhMe 6 16 Wikipedia NIST
[PhN2]+ 2 11 NIST
PhN=NPh NIST
PhNH2 8 8 Wikipedia NIST
PhNHMe Wikipedia NIST
PhNMe2 2 NIST
PhNO 1 Wikipedia NIST
PhNO2 3 6 Wikipedia NIST
PhOH 8 10 Wikipedia NIST
PhOMe 2 Wikipedia NIST
PhOPh NIST
Phosgene 2 6 Wikipedia NIST
Phosphane
PH3
6 2 Wikipedia NIST
Phosphate di-substituted (generic) Wikipedia
Phosphate dianion, hydrogen
[HPO4]2–
1 2 NIST
Phosphate ion
[PO4]3–
2 7 Wikipedia NIST
Phosphate ion, dihydrogen
[H2PO4]
1 3 NIST
Phosphate minerals
Phosphate
Rock
1 Wikipedia
Phosphate rock
Phosphate
Rock
1 Wikipedia
Phosphate tri-substituted (generic) Wikipedia
Phosphate, mono-substituted (generic) Wikipedia
Phosphide ion
P3–
10 Wikipedia NIST
Phosphine
PH3
6 2 Wikipedia NIST
Phosphine (generic)
R3P
1 1
Phosphine anion
[H2P]
1 NIST
Phosphine anion (generic)
[R2P]
Phosphine oxide (generic)
R3P=O
Phosphine, dimethyl phenyl NIST
Phosphine, diphenyl 1 NIST
Phosphine, diphenyl methyl NIST
Phosphine, phenyl Wikipedia NIST
Phosphine, tri n-butyl 1 Wikipedia NIST
Phosphine, tri t-butyl 1 NIST
Phosphine, tricyclohexyl Wikipedia NIST
Phosphine, triethyl
(CH3CH2)3P
1 2 NIST
Phosphine, triphenyl 1 4 Wikipedia NIST
Phosphine, trisubstituted (generic)
R3P
1 1
Phosphinic acid (generic) Wikipedia
Phosphinous acid (generic)
Phosphite ion
[HPO3]2–
1 Wikipedia NIST
Phosphite ion, hydrogen
[H3PO4]
1 1 NIST
Phosphite, triethyl
(CH3CH2O)3P
4 Wikipedia NIST
Phosphite, trimethyl
(CH3O)3P
Wikipedia NIST
Phosphole Wikipedia NIST
Phospholeum 1 Wikipedia NIST
Phosphonate stabilised carbanion (generic) 1 1
Phosphonate, benzyl diethyl 1 NIST
Phosphonate, diethyl 1° alkyl (generic) 2 1
Phosphonate, diethyl alkyl (generic) 1
Phosphonic acid (generic) Wikipedia
Phosphonium ion
[PH4]+
1 NIST
Phosphonium ion (generic)
[R3PH]+
1
Phosphonium ion, alkyl triphenyl (generic)
[(C6H5)3P–CH2R]+
2 1
Phosphonium ion, triethyl
[(CH3CH2)3PH]+
1 NIST
Phosphonium ion, trimethyl
[(CH3)3PH]+
1 NIST
Phosphonous acid (generic)
Phosphor bronze 30
Phosphor
Bronze 30
Wikipedia NIST
Phosphoric acid
H3PO4
8 7 Wikipedia NIST
Phosphoric acid, hypo 1 NIST
Phosphoric acid, poly 1 Wikipedia NIST
Phosphoric acid, pyro 2 Wikipedia NIST
Phosphorus 31
31P
1 Wikipedia NIST
Phosphorus acid
H3PO3
8 1 Wikipedia NIST
Phosphorus acid, hypo
H3PO2
2 2 Wikipedia NIST
Phosphorus acid, pyro NIST
Phosphorus hexafluoride ion
[PF6]
1 NIST
Phosphorus hydride
PH3
6 2 Wikipedia NIST
Phosphorus oxychloride
POCl3
6 4 Wikipedia NIST
Phosphorus pentabromide
PBr5
2 Wikipedia NIST
Phosphorus pentachloride
PCl5
1 9 Wikipedia NIST
Phosphorus pentachloride g
PCl5(g)
Wikipedia NIST
Phosphorus pentafluoride
PF5
3 1 Wikipedia NIST
Phosphorus pentasulfide
P2S5
1 Wikipedia NIST
Phosphorus pentoxide
P2O5
3 8 Wikipedia NIST
Phosphorus sesquisulfide
P2S3
1 Wikipedia NIST
Phosphorus sulfochloride
PSCl3
1 NIST
Phosphorus thiochloride
PSCl3
1 NIST
Phosphorus tribromide
PBr3
2 2 Wikipedia NIST
Phosphorus trichloride
PCl3
2 19 Wikipedia NIST
Phosphorus trifluoride
PF3
2 1 Wikipedia NIST
Phosphorus triiodide
PI3
1 Wikipedia NIST
Phosphorus trioxide
P2O3
1 2 Wikipedia NIST
Phosphorus trisulfide
P2S3
1 Wikipedia NIST
Phosphorus, red
P
Red
1 1 Wikipedia NIST
Phosphorus, white
P
3 20 Wikipedia NIST
Photo activated species (generic)
R*
photoactivated
Photon
hν
52 Wikipedia NIST
Photon (high energy)
γ
82 2 Wikipedia NIST
[PhO]- 2 7 NIST
PhPh 2 Wikipedia NIST
PhPH2 Wikipedia NIST
PhS- 5 NIST
PhSe+ 1 NIST
PhSeBr 2 NIST
[PhSe]- 1 2 NIST
PhSH 1 Wikipedia NIST
[PhSiH2]- 1 NIST
PhSO2Me 1 NIST
[PhSO2]- 2 NIST
[PhSO3]- 1 NIST
Phthalate (o) (hydrogen) ion 1 1 NIST
o-Phthalate dianion 1 NIST
o-Phthalic acid 2 1 Wikipedia NIST
Phthalic anhydride 3 4 Wikipedia NIST
Phthalimide 3 Wikipedia NIST
Phthalimide ion 2 Wikipedia NIST
Phthalimide, potassium salt 1 Wikipedia NIST
π-HOMO Lewis base (generic) 6
pi-LUMO Lewis acid (generic) 4
PI3
PI3
1 Wikipedia NIST
3-Picoline 1 1 NIST
4-Picoline 2 NIST
2-Picoline, 5-ethyl 2 1 NIST
alpha-Picoline 3 1 Wikipedia NIST
Picrate ion 1 Wikipedia NIST
Picratol
52% Picric acid
48% TNT
1 Wikipedia
Picric acid 2 1 Wikipedia NIST
Picrite 1 Wikipedia NIST
Piemontite
Ca2(Al,Fe,Mn)3
Si3O12(OH)
Wikipedia
Pimelic ketone 5 5 Wikipedia NIST
Pinacolone 1 1 Wikipedia NIST
Pion
π+
1 Wikipedia
2-Pipecoline 1 NIST
Piperidine 1 Wikipedia NIST
Piperidine, protonated 1 NIST
Pitch
Pitch
1 Wikipedia NIST
Pitchblende
UO2
Wikipedia
Pivalic acid 1 NIST
Plagioclase
NaAlSi3O8
CaAl2Si2O8
Wikipedia
Plaster of Paris
CaSO4
.½H2O
1 1 Wikipedia NIST
Platinous chloride
PtCl2
Wikipedia NIST
Platinous potassium chloride
K2[PtCl4]
1 1 NIST
Platinum
Pt
1 9 Wikipedia NIST
Platinum gold, white
White
Platinum Gold
NIST
Platinum on carbon
Pt
on carbon
10 Wikipedia NIST
Platinum trioxide
PtO3
NIST
Platinum zirconium alloy
ZrPt3
1 NIST
Platinum(IV) hexafluoride
PtF6
1 2 Wikipedia NIST
Platinum-iridium alloy
Pt-Ir
NIST
Platinum(II) bromide
PtBr2
Wikipedia NIST
Platinum(II) chloride
PtCl2
Wikipedia NIST
Platinum(II) cis-diamminodichloro complex
Pt(NH3)2Cl2
Wikipedia NIST
Platinum(II) fluoride
PtF2
NIST
Platinum(II) iodide
PtI2
NIST
Platinum(II) ion
Pt2+
3 NIST
Platinum(II) oxide
PtO
NIST
Platinum(II) tetrachloride ion
[PtCl4]2–
1 1 NIST
Platinum(II,IV) oxide
Pt3O4
NIST
Platinum(III) chloride
PtCl3
NIST
Platinum(III) iodide
PtI3
NIST
Platinum(IV) bromide
PtBr4
NIST
Platinum(IV) chloride
PtCl4
Wikipedia NIST
Platinum(IV) fluoride
PtF4
NIST
Platinum(IV) hexachloride ion
[PtCl6]2–
1 NIST
Platinum(IV) iodide
PtI4
NIST
Platinum(IV) oxide
PtO2
Wikipedia NIST
Platinum(V) fluoride
PtF5
1 NIST
Platinum(VI) oxide
PtO3
NIST
Plattnerite
PbO2
4 Wikipedia NIST
Plexiglass 1 Wikipedia NIST
Plumber's solder
Plumber's
Solder
NIST
Plumbic chloride
PbCl4
1 NIST
Plumbic fluoride
PbF4
1 NIST
Plumbous fluoride
PbF2
1 Wikipedia NIST
Plumbum 6 Wikipedia NIST
Plutonium
Pu
Wikipedia NIST
Plutonium 238
238Pu
1 1 Wikipedia NIST
Plutonium 239
239Pu
1 1 Wikipedia NIST
Plutonium 241
241Pu
1 Wikipedia NIST
Pm
Pm
Wikipedia NIST
Pnictogens (generic)
Group Va/15
Pnictogens
Wikipedia
Po
Po
Wikipedia NIST
[PO4]3-
[PO4]3–
2 7 Wikipedia NIST
POCl3
POCl3
6 4 Wikipedia NIST
Polar-covalent bond (generic)
Polonium
Po
Wikipedia NIST
Polonium 210
210Po
1 1 NIST
Polonium 211
211Po
1 1 Wikipedia NIST
Polonium 212
212Po
1 1 Wikipedia NIST
Polonium 213
213Po
1 1 Wikipedia NIST
Polonium 214
214Po
1 1 Wikipedia NIST
Polonium 215
215Po
2 1 Wikipedia NIST
Polonium 216
216Po
1 2 Wikipedia NIST
Polonium 218
218Po
1 2 Wikipedia NIST
Poly(chloroethene) 1 Wikipedia NIST
Poly(dimethysiloxane)
[(CH3)2SiO]n
1 NIST
Poly(phenylethene) 1 Wikipedia NIST
Poly(propene) 1 Wikipedia NIST
Polyacetal 1 Wikipedia NIST
Polyacrylonitrile 1 1 Wikipedia NIST
Polybutadiene 1 Wikipedia NIST
Polybutadiene rubber
Polybutadiene
Rubber
1 Wikipedia NIST
Polycarbonate
Polycarbonate
1 Wikipedia NIST
Polychloroprene 1 Wikipedia NIST
Polycyclic aromatic (generic) 1 1 Wikipedia
Polydentate base (generic) Wikipedia
Polyene (generic) 1
Polyethene
–[CH2CH2]n
2 1 NIST
Polyethylene
–[CH2CH2]n
2 1 NIST
Polyethylene glycol (generic)
Polyethylene
Glycol
1 Wikipedia
Polyethylene terephthalate
Terylene
2 Wikipedia NIST
Polyethylene-silane graft 1 1 NIST
Polyhalite
K2Ca2Mg(SO4)4
.2H2O
1 Wikipedia
Polyhalogen ion (generic)
Polyhalogen
Ion
cis-Polyisoprene 1 Wikipedia NIST
trans-Polyisoprene 1 Wikipedia
Polymer (AS/A2 generic) Wikipedia
Polymer (generic)

Polymer

1 Wikipedia
Polymethylmethacrylate 1 Wikipedia NIST
Polynuclear aromatic hydrocarbon (generic) 1 1 Wikipedia
Polyoxymethylene 1 Wikipedia NIST
Polyphosphoric acid 1 Wikipedia NIST
Polypropylene 1 Wikipedia NIST
Polystyrene 1 Wikipedia NIST
Polytetrafluoroethylene 1 Wikipedia NIST
Polythiazyl
(SN)x
1 Wikipedia NIST
Polyurethane
Polyurethane
1 Wikipedia NIST
Polyvinyl alcohol 1 Wikipedia NIST
Polyvinyl fluoride 1 Wikipedia NIST
Polyvinylacetate 1 1 Wikipedia NIST
Polyvinylchloride 1 Wikipedia NIST
Polyvinylidene chloride 1 Wikipedia NIST
Porphyrin 1 Wikipedia NIST
Positron
β+
6 1 Wikipedia NIST
Potassium
K
6 24 Wikipedia NIST
Potassium acid carbonate
KHCO3
2 1 Wikipedia NIST
Potassium alum
KAl(SO4)2
.12H2O
1 Wikipedia NIST
Potassium aluminium hydride
KAlH4
NIST
Potassium amide
KNH2
2 NIST
Potassium antimonide
K3Sb
2 1 NIST
Potassium arsenide
K3As
2 1 NIST
Potassium arsenite
KAsO2
Wikipedia NIST
Potassium bicarbonate
KHCO3
2 1 Wikipedia NIST
Potassium bifluoride
K[HF2]
3 1 NIST
Potassium borohydride
KBH4
NIST
Potassium bromate
NaBrO3
1 1 Wikipedia NIST
Potassium bromide
KBr
12 Wikipedia NIST
Potassium buckide
K3C60
1 Wikipedia NIST
Potassium tertiary butoxide 2 2 NIST
Potassium carbide
KC≡CK
2 NIST
Potassium carbonate
K2CO3
4 2 Wikipedia NIST
Potassium chlorate
KClO3
2 2 Wikipedia NIST
Potassium chloride
KCl
11 11 Wikipedia NIST
Potassium cyanide
KCN
1 5 Wikipedia NIST
Potassium dichromate(VI)
K2Cr2O7
1 5 Wikipedia NIST
Potassium dioxide
K2O
3 3 Wikipedia NIST
Potassium fluoride
KF
5 5 Wikipedia NIST
Potassium graphite
C8K
1 Wikipedia NIST
Potassium hexachloro platinate
K2[PtCl6]
1 NIST
Potassium hydride
KH
2 1 Wikipedia NIST
Potassium hydrogen carbonate
KHCO3
2 1 Wikipedia NIST
Potassium hydrogen difluoride
K[HF2]
3 1 NIST
Potassium hydrogen sulfide
KSH
3 NIST
Potassium hydroxide
KOH
12 18 Wikipedia NIST
Potassium iodide
KI
2 6 Wikipedia NIST
Potassium ion
K+
19 45 NIST
Potassium ion 18-crown-6 complex 2 NIST
Potassium magnesium chloride hexahydrate
KCl.MgCl2
.6H2O
1 NIST
Potassium manganate(V)
K3MnO4
2 1 NIST
Potassium manganate(VI)
K2MnO4
2 1 NIST
Potassium manganate(VII)
KMnO4
2 4 Wikipedia NIST
Potassium metaarsenite
KAsO2
Wikipedia NIST
Potassium nitrate
KNO3
3 1 Wikipedia NIST
Potassium nitrosodisulfonate
(KSO3)2NO
1 Wikipedia NIST
Potassium oxide
KO2
2 2 Wikipedia NIST
Potassium ozonide
KO3
2 NIST
Potassium perbromate
NaBrO4
2 NIST
Potassium perchlorate
KClO4
3 1 Wikipedia NIST
Potassium permanganate
KMnO4
2 4 Wikipedia NIST
Potassium peroxide
K2O2
2 Wikipedia NIST
Potassium phosphide
K3P
2 NIST
Potassium phthalimide 1 Wikipedia NIST
Potassium rhenium nonahydride
K2ReH9
1 Wikipedia NIST
Potassium selenide
K2Se
2 NIST
Potassium sodium tartrate
KNa Tartrate
.4H2O
1 Wikipedia NIST
Potassium stibnide
K3Sb
2 1 NIST
Potassium sulfate
K2SO4
2 1 Wikipedia NIST
Potassium sulfide
K2S
3 1 Wikipedia NIST
Potassium sulphate
K2SO4
2 1 Wikipedia NIST
Potassium superoxide
K2O
3 3 Wikipedia NIST
Potassium telluride
K2Te
2 NIST
Potassium tetrachloroplaninate(II)
K2[PtCl4]
1 1 NIST
Potassium tetrahydrozinc(II) complex
K2ZnH4
1 NIST
Potassium trichloro(ethylene)platinate(II) hydrate 1 Wikipedia NIST
Potassium trisalicaldehyde complex 1 NIST
Pr
Pr
Wikipedia NIST
Pr2O3
Pr2O3
NIST
Praseodymia
Pr2O3
NIST
Praseodymium
Pr
Wikipedia NIST
Praseodymium(III) bromide
PrBr3
NIST
Praseodymium(III) chloride
PrCl3
Wikipedia NIST
Praseodymium(III) iodide
PrI3
NIST
Praseodymium(III) oxide
Pr2O3
NIST
Praseodymium(IV) oxide
PrO2
NIST
PrBr 3 Wikipedia NIST
PrBr3
PrBr3
NIST
PrCl3
PrCl3
Wikipedia NIST
Precipitated silica
Si(OH)4
2 Wikipedia NIST
Prehnite
Ca2Al(AlSi3
O10)(OH)2
Wikipedia
PrI3
PrI3
NIST
Primary alcohol (AS/A2 generic) 4 1 Wikipedia
Primary alcohol (generic)
RCH2OH
15 3
Primary alkyl amine (generic)
R–NH2
4 9
Primary amine (AS/A2 generic) 2 Wikipedia
PrNH2 1 Wikipedia NIST
Pro 1 1 Wikipedia NIST
PrO2
PrO2
NIST
Producer gas
CO + 2N2
producer gas
1 Wikipedia NIST
Proline 1 1 Wikipedia NIST
Proline, deprotonated 1 Wikipedia NIST
Proline, protonated 1 Wikipedia NIST
Promethium
Pm
Wikipedia NIST
Prop-1-ene-3-ide anion 2 Wikipedia NIST
Prop-1-ene-3-ylium ion 2 NIST
Prop-1-yn-3-ylium ion
[HC≡C–CH2]+
1 NIST
Prop-2-en-1-imine NIST
Prop-2-ylium ion 3 7 NIST
1,2-Propadiene
H2C=C=CH2
Wikipedia NIST
Propan-1-ide anion 2 NIST
Propan-1-ol 4 2 Wikipedia NIST
Propan-2-ide anion 3 Wikipedia NIST
Propan-2-ol 9 8 Wikipedia NIST
Propanal 3 3 Wikipedia NIST
Propane 2 2 Wikipedia NIST
Propane-1,2,3-triol 10 2 Wikipedia NIST
Propanedinitrile
(CN)2CH2
1 Wikipedia NIST
Propanedinitrile anion
[(CN)2CH]
1 Wikipedia NIST
Propanedioic acid 2 2 Wikipedia NIST
Propanedioic acid diester (generic) 1
Propanenitrile
CH3CH2CN
1 Wikipedia NIST
Propanoate ion 1 NIST
Propanoic acid
CH3CH2COOH
5 1 Wikipedia NIST
Propanoic acid, ethyl ester 1 NIST
1-Propanol 4 2 Wikipedia NIST
2-Propanol 9 8 Wikipedia NIST
Propanone 15 19 Wikipedia NIST
Propanoyl chloride 1 NIST
Propargyl alcohol
HC≡CCH2OH
3 Wikipedia NIST
Propargyl alcohol (generic) 2 Wikipedia
Propargyl alkoxide ion 1 NIST
Propargylic cation
[HC≡C–CH2]+
1 NIST
Propargylic cation (generic) 1
Propargylic cation synthon (generic) 1
Propargylic-Nfg complex (generic) 1
2-Propen-1-ol 8 2 Wikipedia NIST
Propenal 3 4 Wikipedia NIST
Propene
CH3–CH=CH2
13 29 Wikipedia NIST
Propenenitrile 6 10 Wikipedia NIST
1,2,3-Propenetricarboxylic acid 1 1 Wikipedia NIST
Propeneyl radical NIST
Propenoic acid 6 Wikipedia NIST
(2-Propenoxy)benzene 1 NIST
Propenyl anion 2 Wikipedia NIST
Propenyl cation 2 NIST
2-(2-Propenyl)phenol 1 NIST
Propinioc acid
CH3CH2COOH
5 1 Wikipedia NIST
beta-Propiolactone 1 6 Wikipedia NIST
Propionaldehyde 3 3 Wikipedia NIST
Propionyl chloride 1 NIST
2-Propyl alkoxide ion
[(CH3)2CH–O]
2 1 NIST
2° Propyl anion 3 Wikipedia NIST
1-Propyl anion 2 NIST
1-Propyl bromide 3 Wikipedia NIST
2-Propyl bromide
(CH3)2CHBr
4 8 NIST
N-Propyl bromide 3 Wikipedia NIST
Propyl carbenium ion 3 NIST
Propyl carbocation, secondary 3 7 NIST
Propyl cation, primary 1 1 Wikipedia NIST
Propyl propanoate 1 NIST
1-Propyl radical 2 NIST
iso-Propyl function (generic)
n-Propyl function (generic) Wikipedia
n-Propylamine 1 Wikipedia NIST
1-Propylamine 1 Wikipedia NIST
iso-Propylamine
(CH3)2CHNH2
1 Wikipedia NIST
1-Propyl ammonium ion 1 NIST
Propylene
CH3–CH=CH2
13 29 Wikipedia NIST
Propylene chlorohydrin 1 1 NIST
Propylene oxide 3 1 Wikipedia NIST
2-Propyliodide
(CH3)2CHI
3 NIST
2-Propyn-1-ol
HC≡CCH2OH
3 Wikipedia NIST
Propyne
CH3–C≡C–H
1 Wikipedia NIST
Prostaglandin E1
PGE1
Wikipedia NIST
Prostaglandin E2 Wikipedia NIST
Prostaglandin F2 alpha
PGE
Wikipedia NIST
Protactinium
Pa
NIST
Protactinium 231
231Pa
1 1 Wikipedia NIST
Protactinium 233
233Pa
1 1 Wikipedia NIST
Protactinium 234
234Pa
1 1 Wikipedia NIST
Protein (generic)
Protein
Wikipedia
Protein, single cell
SCP
2 Wikipedia
Proton
H+
77 547 Wikipedia NIST
Proton (nuclear chemistry)
1H
3 7 Wikipedia
Proton abstractor, charged (generic)
Base
Proton abstractor
16 Wikipedia
Proton abstractor, neutral (generic)
Base:
Proton abstractor
4 Wikipedia
Proton Lewis acid (generic) 4 Wikipedia
Proton sponge Lewis base (generic) Wikipedia
Proton, anti

p
1 Wikipedia
Protonated base, H-B (generic)
Base-H
Protonated base
8
Protonated base, [H-B]+ (generic) 2
Protonated ethanol 1 2 NIST
Protonated formaldehyde 1 NIST
Protonated helium
[HHe]+
1 NIST
Protonated molecular hydrogen
[H3]+
2 3 Wikipedia NIST
Protonated nucleofuge, H-Nfg (generic) 1
Protonated nucleophile, H-Nu (generic) 1
Protonated nucleophile, [H-Nfg]+ (generic) 2
Protonated nucleophile, [H-Nu]+ (generic) 1
Protonated xenon
[XeH]+
NIST
Proustite
Ag3AsS3
Wikipedia
Prussiate of Soda
NaCN
2 4 Wikipedia NIST
PSCl3
PSCl3
1 NIST
Pseudohalogen (generic)
Pseudohalogen
Wikipedia
D-Psicose Wikipedia NIST
Psilocybin Wikipedia NIST
Psilocybine Wikipedia NIST
Psilomelane
MnxOy
mixture of oxides
Wikipedia
Psychotomimetic (generic)
Hallucinogen
Wikipedia
Pt on C
Pt
on carbon
10 Wikipedia NIST
Pt
Pt
1 9 Wikipedia NIST
Pt(NH3)2Cl2
Pt(NH3)2Cl2
Wikipedia NIST
Pt2+
Pt2+
3 NIST
Pt3O4
Pt3O4
NIST
PtBr2
PtBr2
Wikipedia NIST
PtBr4
PtBr4
NIST
PtCl2
PtCl2
Wikipedia NIST
PtCl3
PtCl3
NIST
PtCl4
PtCl4
Wikipedia NIST
[PtCl4]2-
[PtCl4]2–
1 1 NIST
[PtCl6]2-
[PtCl6]2–
1 NIST
PtF2
PtF2
NIST
PtF4
PtF4
NIST
PtF5
PtF5
1 NIST
PtF6
PtF6
1 2 Wikipedia NIST
[PtF6]-
[PtF6]
1 1 NIST
PTFE 1 Wikipedia NIST
PtI2
PtI2
NIST
PtI3
PtI3
NIST
PtI4
PtI4
NIST
PtO
PtO
NIST
PtO2
PtO2
Wikipedia NIST
PtO3
PtO3
NIST
Pu
Pu
Wikipedia NIST
Pulmbous pulmbate
Pb2O3
NIST
Purine Wikipedia NIST
Purple gold
Purple
Gold
NIST
Putrescine 2 Wikipedia NIST
PVC 1 Wikipedia NIST
PVF 1 Wikipedia NIST
Pyrargyrite
Ag3SbS3
Wikipedia
Pyrazine Wikipedia NIST
Pyrazole Wikipedia NIST
2-Pyrazoline 1 NIST
Pyrene Wikipedia NIST
Pyrex® glass
Pyrex®
1 Wikipedia
Pyridazine Wikipedia NIST
Pyridine 2 4 Wikipedia NIST
Pyridine (generic) Wikipedia
Pyridine hydrochloride 2 NIST
Pyridine, 2-methyl 3 1 Wikipedia NIST
Pyridine, 5-ethyl-2-methyl 2 1 NIST
Pyridine, protonated 1 1 NIST
Pyridine-3-carboxylic acid 4 Wikipedia NIST
3-Pyridinecarboxylic acid amide 1 1 Wikipedia NIST
Pyridinium chlorochromate 2 Wikipedia NIST
Pyridinium hydrochloride 2 NIST
Pyridinium ion 1 1 NIST
Pyridinium ion, 2-methyl 1 NIST
Pyridinium ion, 4-methyl-2,6-di tertiary butyl 1 NIST
Pyridinium ion, 2,4,6-trimethyl 1 NIST
Pyrimidine Wikipedia NIST
2,4,(1H,3H)-Pyrimidinedione
Uracil
U
Wikipedia NIST
Pyrimidinetrione 1 Wikipedia NIST
Pyrite
FeS2
pyrite
2 Wikipedia
Pyrochlore
(Ca,Na)2Nb2O6
(O,OH,F)
Wikipedia
Pyrolusite
MnO2
1 Wikipedia
Pyromorphite
Pb5(PO4)3Cl
Wikipedia
Pyrophosphoric acid 2 Wikipedia NIST
Pyrophosphorus acid NIST
Pyrosulfite ion 2 NIST
Pyrosulfuric acid
H2S2O7
1 6 Wikipedia NIST
Pyrosulfurous acid 1 NIST
Pyroxylin
Nitrocellulose
1 1 Wikipedia NIST
Pyrrhotite
Fe0.8S
1 Wikipedia
Pyrrole Wikipedia NIST
Pyrrolidine 1 Wikipedia NIST
Pyrrolidine, protonated 1 NIST
2,5-Pyrrolidinedione 2 Wikipedia NIST
2-Pyrrolidinone 1 Wikipedia NIST
Pyruvate ion 1 NIST
Pyruvic acid 1 Wikipedia NIST
Pyrylium ion 1 NIST
Pyrylium tetrafluoroborate 1 NIST


© Mark R. Leach 1999 –


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