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Potassium borohydride

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Potassium borohydride Basic information

Product Name:
Potassium borohydride
Synonyms:
  • Borate(1-), tetrahydro-, potassium
  • Borate(1-),tetrahydro-,potassium
  • Borohydrure de potassium
  • KBH
  • borohydruredepotassium
  • K[BH4]
  • Kaliumborhydrid
  • Kaliumtetrahydridoborat
CAS:
13762-51-1
MF:
BH4K
MW:
53.94
EINECS:
237-360-5
Product Categories:
  • Chemical Synthesis
  • Materials Science
  • Metal and Ceramic Science
  • Potassium Salts
  • Synthetic Reagents
  • NULL
  • Classes of Metal Compounds
  • K (Potassium) Compounds (excluding simple potassium salts)
  • Reduction
  • Synthetic Organic Chemistry
  • Tetrahydroborates
  • Typical Metal Compounds
  • BorohydridesMetal and Ceramic Science
  • metal hydrides
  • Inorganic Chemicals
  • B (Classes of Boron Compounds)
  • Potassium Salts
  • Salts
  • Synthetic Reagents
  • Borohydrides
Mol File:
13762-51-1.mol
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Potassium borohydride Chemical Properties

Melting point:
500 °C (dec.) (lit.)
Density 
1.18 g/mL at 25 °C (lit.)
refractive index 
1.494
storage temp. 
water-free area
form 
Powder
color 
White
Specific Gravity
1.178
Water Solubility 
190 g/L (25 ºC)
Sensitive 
Moisture Sensitive
Merck 
14,7616
InChIKey
ICRGAIPBTSPUEX-UHFFFAOYSA-N
CAS DataBase Reference
13762-51-1(CAS DataBase Reference)
NIST Chemistry Reference
Potassium tetrahydroborate(13762-51-1)
EPA Substance Registry System
Borate(1-), tetrahydro-, potassium (1:1) (13762-51-1)
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Safety Information

Hazard Codes 
F,T,C
Risk Statements 
14/15-24/25-34-11
Safety Statements 
26-36/37/39-43-45-7/8-28A-16
RIDADR 
UN 1870 4.3/PG 1
WGK Germany 
-
RTECS 
TS7525000
10
TSCA 
Yes
HS Code 
2850 00 20
HazardClass 
4.3
PackingGroup 
I
Toxicity
LD50 orally in Rabbit: 167 mg/kg LD50 dermal Rabbit 230 mg/kg

MSDS

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Potassium borohydride Usage And Synthesis

Chemical Properties

White, crystalline powder. Stable in moist and dry air, stable in vacuum to 500C, decomposed by acids with evolution of hydrogen. Partially soluble in water and ammonia; insoluble in ethers and hydrocarbons.

Uses

Reducing agent; source of H-.

General Description

Potassium borohydride is a white crystalline or powdered solid. When exposed to water Potassium borohydride may react violently and start a fire. Potassium borohydride is toxic by ingestion. Potassium borohydride is used to make other chemicals.

Air & Water Reactions

Highly flammable. When exposed to water Potassium borohydride may react violently and start a fire. Produce flammable gases on contact with water. May ignite on contact with water or moist air.

Reactivity Profile

A reducing agent. Reacts rapidly and dangerously with oxygen and with other oxidizing agents, even weak ones. Thus, they are likely to ignite on contact with alcohols. Hydrides are incompatible with acids, alcohols, amines, and aldehydes.

Hazard

Flammable, dangerous fire risk. Toxic by ingestion.

Health Hazard

Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.

Fire Hazard

Produce flammable gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Runoff may create fire or explosion hazard.

Safety Profile

Poison by ingestion. Burns quietly in air. When heated to decomposition it emits toxic fumes of K2O. See also BORON COMPOUNDS and HYDRIDES.

Purification Methods

Crystallise it from liquid ammonia. It is slowly hydrolysed by H2O. Its solubility at ~20o in H2O or liquid NH3 is 20%, in MeOH it is 0.7%, in Me2NCHO it is 15% and in MeOH/H2O (1:4) it is 13%. [Jons & Wallbridge Progr Inorg Chem 11 99-231 1970.]

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