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Sodium borohydride
Sodium borohydride
- CAS:
- 16940-66-2
- MF:
- BH4Na
- MW:
- 37.83
Properties
- Melting point:
- >300 °C (dec.) (lit.)
- Boiling point:
- 500°C
- Density
- 1.035 g/mL at 25 °C
- vapor pressure
- <1 hPa (25 °C)
- Flash point:
- 158 °F
- storage temp.
- Store at RT.
- solubility
- Methanol (Slightly), Water (Soluble)
- form
- tablets
- Specific Gravity
- 1.4
- color
- White
- PH
- 11 (10g/l, H2O, 20℃)
- explosive limit
- 3.02%(V)
- Water Solubility
- 550 g/L (25 ºC)
- Sensitive
- Hygroscopic
- Merck
- 14,8592
- Stability:
- Stability Stable, but reacts readily with water (reaction may be violent). Incompatible with water, oxidizing agents, carbon dioxide, hydrogen halides, acids, palladium, ruthenium and other metal salts, glass. Flammable solid. Air-sensitive.
- InChIKey
- YOQDYZUWIQVZSF-UHFFFAOYSA-N
Safety Information
- Symbol(GHS)
GHS02,GHS05,GHS06,GHS08
- Signal word
- Danger
- Hazard statements
- H260-H301-H314-H360F
- Precautionary statements
- P201-P231+P232-P280-P308+P313-P370+P378-P402+P404
- Hazard Codes
- F,T,N,C,Xn
- Safety Statements
- 53-43-45-43A-36/37/39-26-22-50-36/37-61
- RIDADR
- UN 3129 4.3/PG 3
- WGK Germany
- 2
- RTECS
- ED3325000
- F
- 10-21
- Autoignition Temperature
- 220 °C
- TSCA
- Yes
- HazardClass
- 4.3
- PackingGroup
- I
- HS Code
- 28500090
- Toxicity
- LD50 orally in Rabbit: 160 mg/kg LD50 dermal Rabbit 230 mg/kg
Use
sodium borohydride is relatively mild reducing agent. it has a good efficacy on reducing aldehydes and ketones. its commonly-used solvents include alcohol, tetrahydrofuran, dmf, and water. it generally does not reduce an ester group, a carboxyl group, and amide. however, when combined with appropriate solvent or catalyzed by lewis acid in high temperature, it can be used for reducing weak carbonyl group such as ester.
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