Potassium borohydride

  • Potassium tetrahydroborate
Formula
KBH4
Structure
Description
Potassium borohydride is a white crystalline or powdered solid.
Uses
Reducing agent.

Registry Numbers and Inventories.
CAS
13762-51-1
EC (EINECS/ELINCS)
237-360-5
EC Class
highly flammable, toxic, corrosive
R 15 34
S 8 26 36/37/39 43 45
RTECS
TS7525000
RTECS class
Other
UN (DOT)
1870
Merck
12,7777
Beilstein/Gmelin
22075 (G)
Swiss Giftliste 1
G-10047
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
BH4K
Formula mass
53.94
Melting point, °C
500
Density
1.17 g/cm3
Solubility in water
Soluble
Refractive index
1.49 (20 C)

Hazards and Protection.
Storage
Keep away from water.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Wear appropriate chemical protective clothing.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal.
Disposal code
26
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents - acids - alcohols - water.
Decomposition
Irritating and toxic fumes and gases, oxides of boron, borane.

Fire.
Fire fighting
Do not extinguish fire unless flow can be stopped. Do not use water. Use graphite, soda ash, powdered sodium chloride, or suitable dry powder.
Fire potential
Produce flammable gases on contact with water.
Hazards
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.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
2
 
 
Reactivity
2
 
 
Special
W

Health.
Poison_Class
3
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Inhalation
Inhalation or contact with vapors, substance, or decomposition products may cause severe injury or death.
   Skin
See inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.
   Inhalation
Remove from exposure to fresh air immediately.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush with running water for at least 20 minutes.

Transport.
UN number
1870
Response guide
Hazard class
4.3
Packing Group
I
 
HS Code
2850 00 20
 
Std. Transport #
4916468