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Sodium borohydride

Sodium borohydride fine granular for synthesis. CAS No. 16940-66-2, EC Number 241-004-4., fine granular for synthesis

Synonym: Sodium tetrahydridoborate

  • CAS Number 16940-66-2

  • Linear Formula H₄BNa

  • Molecular Weight 37.83 g/mol

  •  EC Number 241-004-4



packaging   10 g in Glass bottle (8063730010)
  40 kg in Steel drum (8063739040)
  500 g in Glass bottle (8063730500)
bp   500 °C (decomposition)
expl. lim.     3.02 %(V)
vapor pressure   <1 hPa (25 °C)
density   1.07 g/cm3 (20 °C)
flash point   69 °C not applicable
autoignition temp.   220 °C
mp   >360 °C (slow decomposition)
pH   11 (10 g/l, H₂O, 20 °C)
bulk density   350 - 500 kg/m3
LD 50 oral   LD50 Rat 160 mg/kg
LD 50 dermal   LD50 Rabbit 230 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (hypochlorite): ≥ 98.0 %
  Identity (ICP-OES): passes test

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Safety Information

HS Code 
2850 00 20
Hazard Statement(s) 
H360FD: May damage fertility. May damage the unborn child.
H260: In contact with water releases flammable gases which may ignite spontaneously.
H301: Toxic if swallowed.
H314: Causes severe skin burns and eye damage.
EUH014: Reacts violently with water.
Precautionary Statement(s) 
P201: Obtain special instructions before use.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.
P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
P402 + P404: Store in a dry place. Store in a closed container.
Storage class 
4.3 Hazardous materials, which set free flammable gases upon contact with water
WGK 2 water endangering
Alkali and alkaline-earth metals should be taken up in an inert solvent and neutralized by adding 2-propanol (Cat. No. 100995) dropwise with stirring. Should the reaction be more violent than expected, conversion should be carried out with tert-butanol or octanol. Caution: This reaction produces hydrogen, which can form explosive mixtures; take necessary precautions. When the reaction has ceased, add water dropwise; neutralize; container D. In the case of alkali or alkaline-earth borohydrides, add methanol (Cat. No. 106008) with stirring; in the case of alkali or alkaline-earth amides and hydrides, organoaluminium and organotin hydrides, add 2-propanol (Cat. No. 100995) dropwise. The substances, which are usually in solid form, should be previously suspended in an ether! When the respective reaction has ceased, hydrolize with water; then neutralize. Container D or E. Lithium aluminium hydride must also be destroyed by slurrying in an ether. Under an inert gas and with thorough stirring, add dropwise a 1:4 mixture of ethyl acetate (Cat. No. 822277) and the ether used to prepare the slurry. Always ensure thorough mixing (stirring)! Container A.
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS05  GHS05
Hazard Pictogram(s) 
GHS06  GHS06
Hazard Pictogram(s) 
GHS08  GHS08
Hazard Symbols 
Corrosive  Corrosive
Hazard Symbols 
Flammable  Flammable
Hazard Symbols 
Toxic  Toxic
Declaration (railroad and road) ADR, RID 
UN 1426 , 4.3, I
Declaration (transport by air) IATA-DGR 
UN 1426 , 4.3, I
Declaration (transport by sea) IMDG-Code 
UN 1426 , 4.3, I
Categories of danger 
highly flammable, toxic, corrosive
R Phrase 
R 60-61-25-14/15-34
May impair fertility.May cause harm to the unborn child.Also toxic if swallowed.Reacts violently with water, liberating extremely flammable gases.Causes burns.
S Phrase 
S 14-26-36/37/39-43-45-53
Keep away from oxidising and acidic substances as well as heavy-metal compounds.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of fire, use sand. Never use water.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).Avoid exposure - obtain special instructions before use.
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