Hydrogen

Controlled Substances

Psychoactive Drugs/Narcotic Drugs/Hypertoxic Chemicals/Non-Medical Use of Narcotic Drugs and Psychotropic Substances

Names

[ CAS No. ]:
1333-74-0

[ Name ]:
Hydrogen

[Synonym ]:
Hydrogen
MFCD00070838
EINECS 215-605-7

Chemical & Physical Properties

[ Density]:
0.0899

[ Boiling Point ]:
−252.8 °C(lit.)

[ Melting Point ]:
−259.2 °C(lit.)

[ Molecular Formula ]:
H₂

[ Molecular Weight ]:
2.01588

[ Flash Point ]:
<-150°C

[ Exact Mass ]:
2.01565

[ Vapour density ]:
0.07 (21 °C, vs air)

[ Index of Refraction ]:
1.98

[ Stability ]:
Stable. Highly flammable. Readily forms explosive mixtures with air. Upper (U.K.) composition limit for use of a nitrogen/hydrogen mixture in the open lab is 5.7% hydrogen.

[ Water Solubility ]:
0.00017 g/100 mL

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: MW8900000

CHEMICAL NAME :: Hydrogen

CAS REGISTRY NUMBER :: 1333-74-0

LAST UPDATED :: 199712

DATA ITEMS CITED :: 17

MOLECULAR FORMULA :: H2

MOLECULAR WEIGHT :: 2.02

WISWESSER LINE NOTATION :: ..H2

Safety Information

[ Symbol ]:

GHS02, GHS04

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H220-H280

[ Precautionary Statements ]:
P210-P377-P381-P410 + P403

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US)

[ Hazard Codes ]:
F+:Highlyflammable;

[ Risk Phrases ]:
R12

[ Safety Phrases ]:
S9-S16-S33

[ RIDADR ]:
UN 1950 2.1

[ WGK Germany ]:
-

[ RTECS ]:
MW8900000

[ Hazard Class ]:
2.1