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Sodium hydride

Physical properties Related chemical reaction Uses Preparation Flammability hazard characteristics Storage Characteristics
Sodium hydride
Sodium hydride structure
Chemical Name:
Sodium hydride
QHN;NAH;340F;nah80;NAH 80;0.84-0.86;7646-69-7;Hydridesodium;SODIUM HYDRIDE;sodiummonohydride
Molecular Formula:
Formula Weight:
MOL File:

Sodium hydride Properties

Melting point:
800 °C (dec.) (lit.)
Flash point:
storage temp. 
Store below +30°C.
Soluble in molten sodium. Insoluble in ammonia, benzene,carbon tetrachloride, carbon disulfide and all organic solvents.
powder (moistened with oil)
White to pale gray
Water Solubility 
Air & Moisture Sensitive
CAS DataBase Reference
7646-69-7(CAS DataBase Reference)
EWG's Food Scores
NIST Chemistry Reference
Sodium hydride(7646-69-7)
EPA Substance Registry System
Sodium hydride (NaH) (7646-69-7)
  • Risk and Safety Statements
Signal word  Danger
Hazard statements  H228-H260-H314
Precautionary statements  P280a-P370+P378c-P501a-P210-P223-P231+P232-P280-P370+P378-P422-P335+P334-P402+P404
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
NFPA 704
3 2

Sodium hydride price More Price(23)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 223441 Sodium hydride dry, 90% 7646-69-7 10g $51.4 2021-03-22 Buy
Sigma-Aldrich 8.14552 Sodium hydride suspension (60% suspension in paraffin oil) for synthesis 7646-69-7 100 g $80.66 2021-03-22 Buy
Sigma-Aldrich 223441 Sodium hydride dry, 90% 7646-69-7 1kg $824 2021-03-22 Buy
TCI Chemical S0481 Sodium Hydride (60%, dispersion in Paraffin Liquid) 7646-69-7 100g $45 2021-03-22 Buy
TCI Chemical S0481 Sodium Hydride (60%, dispersion in Paraffin Liquid) 7646-69-7 500g $102 2021-03-22 Buy

Sodium hydride Chemical Properties,Uses,Production

Physical properties

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.
Pure sodium hydride is silver needle-like crystals, commercially available sodium hydride merchandise usually is subtle gray crystalline powder, the proportion of sodium hydride is 25% to 50% dispersed in oil. The relative density is 0.92. Sodium hydride is crystalline rock salt type structure (lattice constant a = 0.488nm), and as lithium hydride in ionic crystalline, hydrogen ion is existent in anion form. Heat of formation is 69.5kJ · mol-1, at the high temperature of 800 ℃, it decomposes into metallic sodium and hydrogen; decomposes explosively in water; reacts violently with lower alcohols;dissolves in molten sodium and molten sodium hydroxide; insoluble in liquid ammonia, benzene, carbon tetrachloride and carbon disulfide.

Related chemical reaction

Sodium hydride is a strong reducing agent, For example, titanium tetrachloride can reduced to metallic titanium at 400 ℃: TiCl4 == 4NaH + Ti + 4NaCl + 2H2.
At atmospheric pressure and heated to 425 ℃, it decomposes to generate hydrogen gas. And it can violently react with water, even causes a fire, and produces sodium hydroxide and hydrogen. It reacts with liquild ammonia to prepare amine salt (sodium amide) and hydrogen. NaH + NH3-(H2) → NaNH2 + H2.
At a high temperature, sodium hydride also reacts with halogen, sulfur vapor, sulfur dioxide and carbon dioxide. It is highly reductive, liberates the metal from metal oxides, metal chlorides.
TiCl4 + 4NaH → Ti + NaCl + 2H2.
Sodium hydride reacts with boron trifluoride to generate diborane.
2BF3 + 6NaH → B2H6 + 6NaF.
Sodium hydride is stable in dry air below 230 ℃, over this temperature it will burn into sodium oxide. If there is the presence of trace amounts of sodium, even at low temperatures it is also easy to fire. When firing, water and organic fire extinguishing agent must not be used.


Sodium hydride can be used for condensation and alkylation reaction and can be used as a polymerization catalyst, used for the manufacture of drug synthetic and used in fragrance industry, used for manufacturing boron hydrides, used as metal surface rust, reducing agents, condensing agent, desiccant and Clay Johnson's reagents.
Used as a condensing agent, an alkylating agent and a reducing agent, etc.
It is an important reductant for Pharmaceutical, perfumes, dyes, but also as a drying agent, an alkylating agent, etc.


Sodium hydride is prepared by passing hydrogen gas into molten sodium metal dispersed in oil. Alternatively, the hydride can be made by passing hydrogen into sodium dispersed over the surface of an inert solid, such as, hydrocarbon above 200°C
2Na + H2 → 2NaH

Flammability hazard characteristics

Encountering Water or moist air to emit hydrogen and can be combustible

Storage Characteristics

Treasury ventilation low-temperature drying, stored separately from oxidants, halogens, strong acids.


Sodium hydride, is a binary salt that has a specific hazard of releasing hydrogen upon contact with water. It is an odorless powder that is violently water reactive. The four-digit UN identification number is 1427. The NFPA 704 designation is health 3, flammability 3, and reactivity 2. The white space at the bottom of the diamond has a W with a slash through it, indicating water reactivity.

Chemical Properties

Grey solid

Physical properties

Silvery needles; refractive index 1.470; density 0.92 g/cm3; decomposes at 800°C; decomposes explosively in water; reacts violently with lower alcohols; dissolves in molten sodium and molten sodium hydroxide; insoluble in liquid ammonia, benzene, carbon tetrachloride and carbon disulfide.


At low temperatures where reducing properties of sodium are undesirable as in the condensation of ketones and aldehydes with acid esters; in solution with molten sodium hydroxide for the reduction of oxide scale on metals; at high temperatures as a reducing agent and reduction catalyst.

Production Methods

Sodium hydride, reactive with water yielding hydrogen gas and NaOH solution, formed by reaction of sodium and hydrogen at about 360 °C (680 °F). Used as a powerful reducing agent.


sodium hydride: A white crystallinesolid, NaH; cubic; r.d. 0.92; decomposesabove 300°C (slow);completely decomposed at 800°C.Sodium hydride is prepared by thereaction of pure dry hydrogen withsodium at 350°C. Electrolysis ofsodium hydride in molten LiCl/KClleads to the evolution of hydrogen;this is taken as evidence for the ionicnature of NaH and the presence ofthe hydride ion (H–). It reacts violentlywith water to give sodium hydroxideand hydrogen, with halogensto give the halide and appropriatehydrogen halide, and ignites spontaneouslywith oxygen at 230°C. It is apowerful reducing agent with severallaboratory applications.

General Description

A silvery to whitish powder or slurry in oil. Used to make other chemicals.

Air & Water Reactions

Highly flammable. Ignites or explodes in contact with air of high humidity [Bretherick 1979 p. 107]. Reacts violently with water producing a caustic solution (NaOH) and hydrogen (H2). Heat of reaction may ignite the hydrogen.

Reactivity Profile

Sodium hydride is a powerful reducing agent. Attacks SiO2 in glass. Ignites on contact with gaseous F2, Cl2, Br2, and I2 (the last at temperatures exceeding 100°C), especially in the presence of moisture, to form HF, HCl, HBr, and HI [Mellor 2:483 1946-47]. Reacts with sulfur to give Na2S and H2S [Bretherick 1979 p. 107]. Can react explosively with dimethyl sulfoxide [Chem. Eng. News 44(24):7 1966]. Reacts vigorously with acetylene, even at -60°C [Mellor 2:483 1946-47]. Spontaneously flammable in fluorine. Reaction with dimethylformamide, when heated, runs away [Chem. Eng. News, 1982, 60(28), 5]. Initiates a polymerization reaction in ethyl-2,2,3-trifluoropropionate such that the ester decomposed violently [Bretherick 5th ed. 1995]. Presence in the reaction of diethyl succinate and ethyl trifluoroacetate, has twice caused explosions [Chem. Brit., 1983, 19, 645].


Dangerous fire risk, reacts violently with water evolving hydrogen. Irritant.

Health Hazard

SOLID: Will burn skin and eyes. Harmful if swallowed.

Fire Hazard

FLAMMABLE. MAY EXPLODE ON CONTACT WITH WATER. Accidental contact with water used to extinguish surrounding fire will result in the release of hydrogen gas and possible explosion.

Safety Profile

The powder ignites spontaneously in air. Flammable when exposed to heat or flame. Potentially explosive reaction with water, diethyl succinate + ethyltrifluoroacetate (above 60℃), dimethyl sulfoxide + heat, sulfur dioxide. Ignition or violent reaction with dimethylformamide (above 50℃), ethyl 2,2,3-trifluoropropionate, oxygen (at 230℃). Incompatible with acetylene + moisture, glycerin, halogens, sulphur. Normal fire extinguishers are unsuitable, use sand, ashes, solurn chloride. The commercial material may contain traces of sodium. When heated to decomposition it emits toxic fumes of Na2O. See also HYDRIDES.

Sodium hydride Preparation Products And Raw materials

Raw materials

Preparation Products

Sodium hydride Suppliers

Global( 261)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-66670886 China 21022 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 22607 55
Shanghai Time Chemicals CO., Ltd.
+8618017249410 +86-021-57951555
+86-021-57951555 CHINA 1365 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 3001 55
Shanxi Naipu Import and Export Co.,Ltd
+8613734021967 CHINA 1010 58
career henan chemical co
+86-371-86658258 CHINA 29959 58
+86 18953170293
+86 0531-67809011 CHINA 2858 58
Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28229 58
Hubei xin bonus chemical co. LTD
027-59338440 CHINA 23035 58
Shandong chuangyingchemical Co., Ltd.
18853181302 CHINA 5917 58

View Lastest Price from Sodium hydride manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
US $2.00 / KG 100g 99% 500MT/Month Wuhan wingroup Pharmaceutical Co., Ltd
2021-09-27 Sodium hydride
US $10.00 / KG 100KG 99.99% 10000t Jiangsu Monade Biological Technology Co., Ltd.
2021-08-31 Sodium hydride
US $50.00 / KG 1Kg/Bag 99.99% 20 tons/month Wuhan Monad Medicine Tech Co.,LTD

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