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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 H Structure Reactions
Forming
Reactions
Using
Wikipedia NIST
[H]
[H]
32 NIST
H (histidine) 1 1 Wikipedia NIST
H•
H•
20 10 Wikipedia NIST
Hübnerite
MnWO4
H+
H+
77 547 Wikipedia NIST
H+/H2O
H+(aq)
15
H
H
36 Wikipedia NIST
H2
H2
139 158 Wikipedia NIST
[H2AsO4]-
[H2AsO4]
1 1 NIST
[H2As]
[H2As]
1 NIST
[H2Br]+
[BrH2]+
1 NIST
H2C=C=O
H2C=C=O
4 4 Wikipedia NIST
H2CCO
H2C=C=O
4 4 Wikipedia NIST
[H2Cl]+
[ClH2]+
1 NIST
H2CO
HCHO
6 25 Wikipedia NIST
H2CO3
H2CO3
1 Wikipedia NIST
H2CrO4
H2CrO4
2 Wikipedia NIST
[H2F]+
[FH2]+
2 NIST
[H2GeO4]2-
[H2GeO4]2–
1 NIST
H2N•
H2N•
NIST
H2N2
HN=NH
Wikipedia NIST
H2NCH2CH2CH2CH2NH2 2 Wikipedia NIST
H2NCl
H2NCl
1 3 Wikipedia NIST
H2NOH.HCl 1 Wikipedia NIST
H2NSO2NH2
H2NSO2NH2
1 Wikipedia NIST
[H2N]-
[H2N]
2 18 NIST
H2O
H2O
529 531 Wikipedia NIST
H2O(g)
H2O(g)
3 1 Wikipedia NIST
H2O2
HOOH
12 30 Wikipedia NIST
H2O3S
H2SO3
4 2 Wikipedia NIST
H2O4S
H2SO4
25 74 Wikipedia NIST
[H2PO2]-
[H2PO2]
2 1 NIST
[H2PO3]-
[H3PO4]
1 1 NIST
[H2PO4]-
[H2PO4]
1 3 NIST
H2PPH2
P2H6
Wikipedia NIST
[H2P]-
[H2P]
1 NIST
H2S
H2S
10 22 Wikipedia NIST
H2S(aq)
H2S(aq)
1 Wikipedia NIST
H2S2
HSSH
1 NIST
H2S2O3 1 1 Wikipedia NIST
H2S2O4 1 NIST
H2S2O5 1 NIST
H2S2O6 1 NIST
H2S2O7
H2S2O7
1 6 Wikipedia NIST
H2S2O8 2 1 NIST
H2S4O6 1 NIST
H2Se
H2Se
3 1 Wikipedia NIST
H2SeO3
H2SeO3
2 1 Wikipedia NIST
H2SeO4 1 Wikipedia NIST
[H2Se]-
[H2Sb]
1 NIST
H2SiF6(aq)
H2SiF6(aq)
2 1 Wikipedia NIST
H2SO3
H2SO3
4 2 Wikipedia NIST
H2SO4
H2SO4
25 74 Wikipedia NIST
H2SO4(aq)
H2SO4(aq)
3 11 Wikipedia NIST
H2SO5 2 2 Wikipedia NIST
H2Te
H2Te
1 2 Wikipedia NIST
H2TeO3
H2TeO3
1 Wikipedia NIST
[H2]+
[H2]+•
2 1 NIST
H3Al
AlH3
2 Wikipedia NIST
H3AsO4
H3AsO4
1 NIST
H3B
BH3
2 Wikipedia NIST
H3BO3
H3BO3
10 9 Wikipedia NIST
[H3GeO4]-
[H3GeO4]
1 1 NIST
[H3IO6]2-
[H3IO6]2–
1 NIST
[H3N2]-
[NH2–NH]
1 NIST
H3P
PH3
6 2 Wikipedia NIST
H3PO2
H3PO2
2 2 Wikipedia NIST
H3PO3
H3PO3
8 1 Wikipedia NIST
H3PO4
H3PO4
8 7 Wikipedia NIST
H3Sb
H3Sb
7 1 Wikipedia NIST
[H3Si]-
[H3Si]
1 NIST
[H3]+
[H3]+
2 3 Wikipedia NIST
H4Ge
GeH4
3 Wikipedia NIST
[H4IO6]-
[H4IO6]
1 1 NIST
H4P2O5 NIST
H4P2O6 1 NIST
H4P2O7 2 Wikipedia NIST
[H4P]+
[PH4]+
1 NIST
H4Si
SiH4
5 Wikipedia NIST
Hadron, bosonic

Bosonic
Hadron

Wikipedia
Hadron, fermionic

Fermionic
Hadron

Wikipedia
Haem 1 Wikipedia NIST
Haemoglobin Wikipedia
Hafnia
HfO2
Wikipedia NIST
Hafnium
Hf
Wikipedia NIST
Hafnium(III) bromide
HfBr3
NIST
Hafnium(III) chloride
HfCl3
NIST
Hafnium(III) iodide
HfI3
NIST
Hafnium(IV) bromide
HfBr4
NIST
Hafnium(IV) chloride
HfCl4
Wikipedia NIST
Hafnium(IV) fluoride
HfF4
NIST
Hafnium(IV) iodide
HfI4
NIST
Hafnium(IV) oxide
HfO2
Wikipedia NIST
Halite
NaCl
halite
Wikipedia
Hallucinogen (generic)
Hallucinogen
Wikipedia
alpha-Halo aldehyde or ketone (generic)
Haloalkane (AS/A2 generic) 2 Wikipedia
Halogen (AS/A2 generic) Wikipedia
Halogen (generic)
Group VIIa/17
Halogens
Wikipedia
Halogen anion (AS/A2 generic) 1 Wikipedia
Halon
CCl2F2
4 1 Wikipedia NIST
Halon 104
CCl4
11 5 Wikipedia NIST
Hard Lewis acid (generic) Wikipedia
Hard Lewis base (generic) Wikipedia
Hard margarine
Hard
Margarine
1 Wikipedia NIST
HArF
H–Ar–F
1 Wikipedia NIST
Harmotome
(Ba0.5,Ca0.5,Na,K)5
Al5,Si11O32.
12H2O
Wikipedia
Hartshorn
(NH4)2CO3
1 Wikipedia NIST
[HAsO4]2-
[HAsO4]2–
1 1 NIST
Hassium
Hs
Wikipedia NIST
Hausmannite
Mn3O4
1 NIST
Haüyne
Na3Ca(Si3Al3)
O12(SO4)
Wikipedia
HBF4
HBF4(aq)
2 1 Wikipedia NIST
HBF4
H+ [BF4]
2 Wikipedia NIST
HBO2
HBO2
2 1 Wikipedia NIST
HBr
HBr
22 20 Wikipedia NIST
HBr/CH3COOH
HBr in CH3COOH
30% W/W
1 NIST
HBrO
HOBr
4 1 Wikipedia NIST
HBrO3
HBrO3
2 Wikipedia NIST
HCCH
HC≡CH
9 25 Wikipedia NIST
HCClF2
HCClF2
1 1 Wikipedia NIST
[HCC]-
HC≡C
1 2 Wikipedia NIST
HCHO
HCHO
6 25 Wikipedia NIST
HCl
HCl
107 50 Wikipedia NIST
HCl + NO3
Aqua Regia
1 2 Wikipedia NIST
HCl(aq)
HCl(aq)
2 13 Wikipedia NIST
HCl(conc)
HCl(conc)
2 9 Wikipedia NIST
HClO
HClO
6 4 Wikipedia NIST
HClO2
HClO2
2 Wikipedia NIST
HClO3
HClO3
2 1 Wikipedia NIST
HClO4
HClO4
4 1 Wikipedia NIST
HCN
HCN
5 18 Wikipedia NIST
HCo(CO)3
HCo(CO)3
2 1 NIST
HCo(CO)4
HCo(CO)4
1 1 NIST
[HCO3]-
[HCO3]
4 5 NIST
HCOCl 1 NIST
HCONH2
HCONH2
2 2 Wikipedia NIST
HCOOCH3 2 5 Wikipedia NIST
HCOOH
HCOOH
7 2 Wikipedia NIST
HCOONa
HCOONa
5 2 Wikipedia NIST
HCOOR
HCOOR
1
[HCOO]-
[HCOO]
1 Wikipedia NIST
[HCrO4]-
[HCrO4]
NIST
HD
HD
1 NIST
He
He
2 1 Wikipedia NIST
Heavy distillate
Fuel oil
1 2 Wikipedia NIST
Heavy hydrogen
D2
1 1 Wikipedia NIST
Heavy metal Lewis acid (generic) 4 Wikipedia
Heavy water
D2
1 Wikipedia NIST
Helium
He
2 1 Wikipedia NIST
Helium 3
3H
1 1 Wikipedia NIST
Helium 4
α
44 6 Wikipedia NIST
Helium family (generic)
Group VIIIa/18
Noble Gases
Wikipedia
Helonium ion
[HHe]+
1 NIST
Hematite
Fe2O3
1 Wikipedia
Hemiacetal (generic) 1 Wikipedia
Hemiketal (generic) 1 Wikipedia
Hemimorphite
Zn3Si2O7(OH)2
.H3O
Wikipedia
Heneicosane 1 Wikipedia NIST
Hepta-5-ene-2,3-dicarboxylic anhydride 1 NIST
Heptane 1 NIST
Heptane, bicyclio[4.1.0] 1 NIST
Heroin 1 Wikipedia NIST
Heteroauxin Wikipedia NIST
5 Heterocycle (generic) Wikipedia
6 Heterocycle (generic) Wikipedia
Heterocycle, polycyclic (generic) Wikipedia
Heterogeneous mixture (generic)

Heterogeneous
Mixture

Wikipedia
Heulandite
Ca,Na)2-3Al3
(Al,Si)2Si13O36
.12H2O
Wikipedia
Hexaamminochromium(III) ion

[Cr(NH3)6]2+

2 NIST
Hexaamminocobalt(II) ion

[Co(NH3)6]2+

1 3 NIST
Hexaamminocobalt(III) ion

[Co(NH3)6]3+

2 NIST
Hexaaquaaluminium complex ion
[Al(H2O)6]3+
2 6 NIST
Hexaaquachromium(II) ion

[Cr(H2O)6]2+

3 NIST
Hexaaquachromium(III) ion

[Cr(H2O)6]2+

3 9 NIST
Hexaaquacobolt(II) ion

[Co(H2O)6]2+

4 10 NIST
Hexaaquacopper(II) ion

[Cu(H2O)6]2+

3 8 NIST
Hexaaquairon(II) ion

[Fe(H2O)6]2+

3 10 NIST
Hexaaquairon(III) ion

[Fe(H2O)6]3+

6 9 NIST
Hexaaquamanganese(II) ion

[Mn(H2O)6]2+

5 NIST
Hexaaquavanadium(II) ion

[V(H2O)6]2+

4 NIST
Hexaaquavanadium(III) ion

[V(H2O)6]3+

2 1 NIST
Hexadecanoic acid
CH3(CH2)14COOH
6 Wikipedia NIST
(9Z)-Hexadecenoic acid
Palmitoleic
Acid
Wikipedia NIST
(2E, 4E)-Hexadiene 2 NIST
(2E, 4Z)-Hexadiene 2 NIST
Hexafluoroaluminate ion
[AlF6]3–
1 NIST
Hexafluoroantimonate(V)
[SbF6]
2 1 NIST
Hexafluoroarsinate ion
[AsF6]
3 1 NIST
Hexafluoroethane
C2F6
1 Wikipedia NIST
Hexafluoropalladium(IV)
[PdF6]2–
NIST
Hexafluoroplatinate ion
[PtF6]
1 1 NIST
Hexafluorosilicate ion
[SiF6]2–
2 2 NIST
Hexafluorosilicic acid (aqueous)
H2SiF6(aq)
2 1 Wikipedia NIST
Hexafluorosulfur
SF6
5 Wikipedia NIST
4,4a,5,6,7,8- Hexahydro-2(3H)- naphthalenone 4 NIST
Hexahydrobenzoic acid 1 1 NIST
Hexahydroiron(II) ion
[FeH6]4–
1 1 NIST
Hexahydroxychromium(III) ion

[Cr(OH)6]3–

2 1 NIST
1,2,3,4,5,6-Hexahydroxyhexane 1 Wikipedia NIST
3,3,6,6,9,9-Hexamethyl-1,2,4,5,7,8-hexoxonane 1 1 Wikipedia NIST
Hexamethylene 5 7 Wikipedia NIST
Hexamethylenediamine 1 1 Wikipedia NIST
Hexamethylenetetramine 1 2 Wikipedia NIST
Hexamethylphosphoramide
HMPA
Wikipedia NIST
Hexamethylphosphoric triamide
HMPA
Wikipedia NIST
Hexamine 1 2 Wikipedia NIST
Hexane 1 5 Wikipedia NIST
Hexane-1,6-diamine 1 1 Wikipedia NIST
Hexanedioic acid 4 3 Wikipedia NIST
6-Hexanolactone 1 Wikipedia NIST
1,3,5-Hexatriene NIST
HF
HF
30 39 Wikipedia NIST
Hf
Hf
Wikipedia NIST
(HF)6
(HF)6
1 Wikipedia NIST
HfBr3
HfBr3
NIST
HfBr4
HfBr4
NIST
HfCl3
HfCl3
NIST
HfCl4
HfCl4
Wikipedia NIST
HfF4
HfF4
NIST
HfI3
HfI3
NIST
HfI4
HfI4
NIST
HfO2
HfO2
Wikipedia NIST
HFO3S
HSO3F
2 2 Wikipedia NIST
Hg
Hg
4 1 Wikipedia NIST
Hg(NO3)2
Hg(NO3)2
1 1 Wikipedia NIST
Hg(OAc)2
Hg(OCOCH3)2
1 Wikipedia NIST
Hg(ONC)2
Hg(ONC)2
2 Wikipedia NIST
Hg2+
Hg2+
9 NIST
Hg2Br2
Hg2Br2
1 NIST
Hg2Cl2
Hg2Cl2
1 1 Wikipedia NIST
Hg2F2
Hg2F2
NIST
Hg2I2
Hg2I2
1 NIST
Hg2O
Hg2O
NIST
Hg2S
Hg2S
1 NIST
[Hg2]2+
Hg23+
1 5 NIST
HgBr2
HgBr2
NIST
HgCl2
HgCl2
2 1 Wikipedia NIST
HgF2
HgF2
Wikipedia NIST
HgI2
HgI2
Wikipedia NIST
HgO
HgO
2 2 Wikipedia NIST
HgS
HgS
1 Wikipedia NIST
HgSO4
HgSO4
1 3 Wikipedia NIST
HI
HI
12 13 Wikipedia NIST
HIO
HOI
5 Wikipedia NIST
HIO3
HIO3
4 1 Wikipedia NIST
HIO4
HIO4
2 1 Wikipedia NIST
His 1 1 Wikipedia NIST
Histidine 1 1 Wikipedia NIST
Histidine, deprotonated 1 Wikipedia NIST
Histidine, doubly-protonated 1 Wikipedia NIST
Histidine, protonated 1 1 Wikipedia NIST
HMDA 1 1 Wikipedia NIST
HMPA
HMPA
Wikipedia NIST
HMPT
HMPA
Wikipedia NIST
HMX 1 Wikipedia NIST
HN3
HN3
2 3 Wikipedia NIST
HN=C=NH
HN=C=NH
2 3 Wikipedia NIST
HN=NH
HN=NH
Wikipedia NIST
HNa
NaH
2 7 Wikipedia NIST
HNO2
HNO2
9 10 Wikipedia NIST
HNO3
HNO3
6 25 Wikipedia NIST
HNO3 (5 molar)
HNO3
5 molar
1 1 Wikipedia NIST
HNO3(aq)
HNO3(aq)
3 3 Wikipedia NIST
HNO3(g)
HNO3(g)
1 1 Wikipedia NIST
HNO3, fuming
HNO3
fuming
2 3 Wikipedia NIST
[HN]2-
[HN]2–
1 Wikipedia NIST
Ho
Ho
Wikipedia NIST
HO.
HO•
12 8 Wikipedia NIST
Ho2O3
Ho2O3
Wikipedia NIST
HOBr
HOBr
4 1 Wikipedia NIST
HoBr3
HoBr3
NIST
HOCH2CH2OH 6 9 Wikipedia NIST
HOCl
HClO
6 4 Wikipedia NIST
HoCl3
HoCl3
NIST
HOD
DOH
1 NIST
HOF
HOF
2 1 NIST
HoF3
HoF3
NIST
HoI3
HoI3
NIST
Holmia
Ho2O3
Wikipedia NIST
Holmium
Ho
Wikipedia NIST
Holmium bromide
HoBr3
NIST
Holmium chloride
HoCl3
NIST
Holmium fluoride
HoF3
NIST
Holmium iodide
HoI3
NIST
Holmium(III) oxide
Ho2O3
Wikipedia NIST
Homberg's phosphorus
CaCl2
9 Wikipedia NIST
Homogeneous mixture (generic)

Homogeneous
Mixture

Wikipedia
HONC
H–O=N=C
1 Wikipedia NIST
HONO
HNO2
9 10 Wikipedia NIST
HOO•
HOO•
1 5 NIST
HOOCCOOH 5 2 Wikipedia NIST
HOOH
HOOH
12 30 Wikipedia NIST
[HOO]-
[HOO]
2 NIST
Horn silver
AgCl
Wikipedia
Hornblende
Ca2(Mg,Fe,Al)5
(Al,Si)8O22(OH)2
Wikipedia
Host (generic) 1
Host-guest complex 1
[HO]+
[HO]+
1 NIST
[HO]-
[OH]
25 79 Wikipedia NIST
[HPO3]2-
[HPO3]2–
1 Wikipedia NIST
[HPO4]2-
[HPO4]2–
1 2 NIST
Hs
Hs
Wikipedia NIST
HS•
HS•
NIST
[HSeO3]-
[HSeO3]
1 1 NIST
[HSeO4]-
[HSeO4]
NIST
[HSe]-
[HSe]
1 NIST
[HSiO3]-
[HSiO3]
NIST
HSO3Cl
HSO3Cl
1 2 Wikipedia NIST
HSO3F
HSO3F
2 2 Wikipedia NIST
[HSO3]-
[HSO3]
3 8 NIST
[HSO4]-
[HSO4]
17 3 NIST
HSSH
HSSH
1 NIST
[HSS]-
[HSS]
1 1 NIST
[HS]+
[HS]+
NIST
[HS]-
[HS]
1 8 NIST
[HTeO3]-
[HTeO3]
1 1 NIST
[HTe]-
[HTe]
2 NIST
Humite series
Mg(OH,F)2
.1-4Mg2SiO4
Wikipedia
[HXeO4]-
[HXeO4]
1 1 NIST
Hydracryonitrile 1 3 NIST
Hydrargyrum
Hg
4 1 Wikipedia NIST
Hydrated aluminium hydroxide
Al(H2O)3(OH)3
Al(OH)3
4 3 NIST
Hydrated oxonium ion 1 Wikipedia NIST
Hydrazide anion
[NH2–NH]
1 NIST
Hydrazine
H2N–NH2
5 11 Wikipedia NIST
Hydrazine, 1° alkyl (generic)
R–CH2–NNH2
1 Wikipedia
Hydrazine, 2,4-dinitrophenyl Wikipedia NIST
Hydrazine, alkyl (generic)
R–NHNH2
Wikipedia
Hydrazine, mono-protonated
[H2N-NH3]+
NIST
Hydrazine, N,N-Dialkyl (generic)
(R)2N–NH2
1 Wikipedia
Hydrazine, phenyl 1 Wikipedia NIST
Hydrazinium ion
[H2N-NH3]+
NIST
Hydrazoic acid
HN3
2 3 Wikipedia NIST
Hydrazoic acid anion
[N3]
5 Wikipedia NIST
Hydrazone (generic)
RHC=N–NH2
1 1 Wikipedia
Hydride donor Lewis acid reducing agent (generic)
Hydride ion
H
36 Wikipedia NIST
Hydride ion complex reducing agent (generic)
Hydridocarbide ion
HC≡C
1 2 Wikipedia NIST
Hydrochloric acid, aqueous
HCl(aq)
2 13 Wikipedia NIST
Hydrochloric acid, concentrated
HCl(conc)
2 9 Wikipedia NIST
Hydrofluoric acid.antimony(V) pentafluoride
ROH
2 Wikipedia NIST
Hydrogen
H2
139 158 Wikipedia NIST
Hydrogen 1
1H
3 7 Wikipedia
Hydrogen acetylide anion
HC≡C
1 2 Wikipedia NIST
Hydrogen arsenate ion
[HAsO4]2–
1 1 NIST
Hydrogen atom
H•
20 10 Wikipedia NIST
Hydrogen azide
HN3
2 3 Wikipedia NIST
Hydrogen bond complex (generic) Wikipedia
Hydrogen bromide
HBr
22 20 Wikipedia NIST
Hydrogen bromide, 30% solution in acetic acid
HBr in CH3COOH
30% W/W
1 NIST
Hydrogen carbide
CH4
14 32 Wikipedia NIST
Hydrogen carbide ion
HC≡C
1 2 Wikipedia NIST
Hydrogen carbonate ion
[HCO3]
4 5 NIST
Hydrogen carbonyl radical 5 6 NIST
Hydrogen chloride
HCl
107 50 Wikipedia NIST
Hydrogen chromate ion
[HCrO4]
NIST
Hydrogen citrate ion 1 1 NIST
Hydrogen cyanamide
HN=C=NH
2 3 Wikipedia NIST
Hydrogen cyanide
HCN
5 18 Wikipedia NIST
Hydrogen delivered equivalents
[H]
32 NIST
Hydrogen deuteride
HD
1 NIST
Hydrogen deuterium oxide
DOH
1 NIST
Hydrogen difluoride ion
[FHF]
3 2 Wikipedia NIST
Hydrogen disulfide ion
[HSS]
1 1 NIST
Hydrogen family (generic)
Group Ia/1
Alkali Metals
Wikipedia
Hydrogen fluoride
HF
30 39 Wikipedia NIST
Hydrogen fluoride dimer 1 Wikipedia NIST
Hydrogen fluoride hexamer
(HF)6
1 Wikipedia NIST
Hydrogen fluoride/Fluoride ion Complex
[FHF]
3 2 Wikipedia NIST
Hydrogen fumarate ion 1 1 NIST
Hydrogen hydroxide
H2O
529 531 Wikipedia NIST
Hydrogen iodide
HI
12 13 Wikipedia NIST
Hydrogen ion
H+
77 547 Wikipedia NIST
Hydrogen malonate ion 1 1 NIST
Hydrogen o-phthalate ion 1 1 NIST
Hydrogen oxide
H2O
529 531 Wikipedia NIST
Hydrogen peroxide
HOOH
12 30 Wikipedia NIST
Hydrogen peroxide anion
[HOO]
2 NIST
Hydrogen peroxide radical
HOO•
1 5 NIST
Hydrogen peroxide radical anion
[H2O2]+•
1 1 NIST
Hydrogen phosphate dianion
[HPO4]2–
1 2 NIST
Hydrogen phosphite ion
[H3PO4]
1 1 NIST
Hydrogen radical
H•
20 10 Wikipedia NIST
Hydrogen removal oxidising agent (generic)
Hydrogen selenate ion
[HSeO4]
NIST
Hydrogen selenide
H2Se
3 1 Wikipedia NIST
Hydrogen selenide ion
[HSe]
1 NIST
Hydrogen selenite ion
[HSeO3]
1 1 NIST
Hydrogen silicate ion
[HSiO3]
NIST
Hydrogen succinate ion 1 1 NIST
Hydrogen sulfate ion
[HSO4]
17 3 NIST
Hydrogen sulfenium ion
[HS]+
NIST
Hydrogen sulfide
H2S
10 22 Wikipedia NIST
Hydrogen sulfide anion
[HS]
1 8 NIST
Hydrogen sulfide, aqueous
H2S(aq)
1 Wikipedia NIST
Hydrogen sulfide radical
HS•
NIST
Hydrogen sulfite ion
[HSO3]
3 8 NIST
Hydrogen sulphate ion
[HSO4]
17 3 NIST
Hydrogen sulphide anion
[HS]
1 8 NIST
Hydrogen sulphide ion
H2S
10 22 Wikipedia NIST
Hydrogen tartrate ion 1 1 NIST
Hydrogen telluride
H2Te
1 2 Wikipedia NIST
Hydrogen telluride anion
[HTe]
2 NIST
Hydrogen tellurite ion
[HTeO3]
1 1 NIST
Hydrogen, ortho
↑H–H↑
1 Wikipedia NIST
Hydrogen, para
↑H–H↓
Wikipedia NIST
Hydrogen, protonated
[H3]+
2 3 Wikipedia NIST
Hydrogenation reduction system (generic) Wikipedia
Hydrogenic ion
[H3]+
2 3 Wikipedia NIST
Hydrogenol
H2O
529 531 Wikipedia NIST
Hydrohydroxynitroyl (generic)
Hydron
H+
77 547 Wikipedia NIST
Hydronitroyl (generic)
Hydronium ion, [H3O]+
[H3O]+
5 5 NIST
Hydronium ion, [H3]+
[H3]+
2 3 Wikipedia NIST
Hydroperoxy radical
HOO•
1 5 NIST
Hydroquinone 2 Wikipedia NIST
Hydroxide ion
[OH]
25 79 Wikipedia NIST
Hydroxy acid anion (generic)
X–O
Hydroxy acid, protonated (generic)
beta-Hydroxy aldehyde (generic) 2
Hydroxy alkoxy carbenium ion (generic) 1
beta-Hydroxy amine (generic) 1
2-Hydroxy benzoic acid 1 2 Wikipedia NIST
Hydroxy carbenium ion 1 NIST
Hydroxy cation
[HO]+
1 NIST
beta-Hydroxy ether (generic) 1
Hydroxy radical
HO•
12 8 Wikipedia NIST
2-Hydroxy-2-methylbutane 1 NIST
2-Hydroxy-2-methylbutanenitrile 1 1 NIST
2-Hydroxy-2-methylpropanenitrile 1 1 NIST
2-Hydroxy-3-methylbutane 1 NIST
4-Hydroxy-4-methyl-2-pentanone 1 1 NIST
Hydroxyacetic acid 2 Wikipedia NIST
4-Hydroxyaminobenzene 1 Wikipedia NIST
Hydroxyammonium ion
[H3N-OH]+
4 NIST
4-Hydroxyazobenzene 1 NIST
2-Hydroxybenzaldehyde 1 Wikipedia NIST
Hydroxybenzene 8 10 Wikipedia NIST
3-Hydroxybutanal 1 2 NIST
2-Hydroxybutane 1 2 Wikipedia NIST
(2S)-2-Hydroxybutanedioic acid 1 1 Wikipedia NIST
2-Hydroxybutanedioic acid 1 Wikipedia NIST
4-Hydroxybutyric acid gamma lactone 2 3 Wikipedia NIST
Hydroxydialkoxy carbenium ion (generic) 1
Hydroxyethanoic acid 2 Wikipedia NIST
2-Hydroxyethyl ethanoate 1 1 NIST
Hydroxyfumaric acid 1 1 Wikipedia NIST
2-Hydroxyisobutylnitrile 1 1 NIST
Hydroxyl radical
HO•
12 8 Wikipedia NIST
Hydroxylamine
H2N–OH
1 7 Wikipedia NIST
Hydroxylamine (generic)
R–NHOH
Wikipedia
Hydroxylamine hydrochloride 1 Wikipedia NIST
Hydroxylamine, protonated
[H3N-OH]+
4 NIST
Hydroxymaleic acid 1 1 Wikipedia NIST
Hydroxymethyl carbenium ion 1 NIST
1-Hydroxynaphthalene 2 NIST
Hydroxynitrile (AS/A2 generic) 2 Wikipedia
Hydroxynitrile (generic) 1
Hydroxynitrile (generic) 2
3-Hydroxynitrobenzene 1 NIST
4-Hydroxynitrobenzene 1 Wikipedia NIST
Hydroxynitroyl (generic)
2-Hydroxypentanenitrile 1 NIST
4-(1-(4-Hydroxyphenyl)-1-methylethyl)phenol 1 1 Wikipedia NIST
N-(-4-hydroxyphenyl)ethanamide Wikipedia NIST
Hydroxyphosphane, alkyl (generic)
Hydroxyphosphane, dialkyl (generic)
2-Hydroxypropane 9 8 Wikipedia NIST
3-Hydroxypropanenitrile 1 3 NIST
(2R)-2-Hydroxy propanoate ion 2 NIST
3-Hydroxypropionitrile 1 3 NIST
(2S)-Hydroxysuccinic acid 1 1 Wikipedia NIST
D/L Hydroxysuccinic acid 1 Wikipedia NIST
beta-Hydroxythioether (generic) 1
Hypersthene
(Mg,Fe)SiO3
Wikipedia
Hypnotic (generic)
Hypnotic
Wikipedia
Hypo
Na2S2O3
5 4 Wikipedia NIST
Hypobromite ion
[BrO]
1 2 NIST
Hypobromous acid
HOBr
4 1 Wikipedia NIST
Hypochlorite ion
[ClO]
2 5 Wikipedia NIST
Hypochlorous acid
HClO
6 4 Wikipedia NIST
Hypochlorous anhydride
Cl2O
1 3 Wikipedia NIST
Hypoflourite ion
[FO]
1 NIST
Hypofluouous acid
HOF
2 1 NIST
Hypoiodite ion
[IO]
1 3 NIST
Hypoiodous acid
HOI
5 Wikipedia NIST
Hyponitrite ion
[N2O2]2–
NIST
Hypophosphite ion
[H2PO2]
2 1 NIST
Hypophosphoric acid 1 NIST
Hypophosphorous acid
H3PO2
2 2 Wikipedia NIST
Hyriodic acid
HI
12 13 Wikipedia NIST


© Mark R. Leach 1999 –


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