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Sodium hydride

Chemical Properties

Melting point 800 °C (dec.) (lit.)
Density  1.2
Flash point 185°C
storage temp.  Store below +30°C.
solubility  Soluble in molten sodium. Insoluble in ammonia, benzene,carbon tetrachloride, carbon disulfide and all organic solvents.
form  powder (moistened with oil)
color  White to pale gray
Water Solubility  REACTS
Sensitive  Air & Moisture Sensitive
Merck  14,8625
Exposure limits ACGIH: TWA 5 mg/m3
OSHA: TWA 5 mg/m3
NIOSH: IDLH 2500 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3
CAS DataBase Reference 7646-69-7(CAS DataBase Reference)
NIST Chemistry Reference Sodium hydride(7646-69-7)
EPA Substance Registry System Sodium hydride (NaH) (7646-69-7)
Sodium hydride belongs to ionic crystals, salt compounds in which the hydrogen is negative monovalent ions. When heating, it is unstable, decomposition without melting, hydrolysis reaction of sodium hydride with water to prepare sodium hydroxide and hydrogen.

Safety Information

Hazard Codes  F,C
Risk Statements  15-36-35-11
Safety Statements  26-43-7/8-43A-24/25-7-60-22-45-37/39-16
RIDADR  UN 1427 4.3/PG 1
WGK Germany  3
RTECS  WB3910000
HazardClass  4.3
PackingGroup  I
HS Code  28500090
Hazardous Substances Data 7646-69-7(Hazardous Substances Data)


Usage And Synthesis

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