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8.18823

Sigma-Aldrich

Sodium borohydride

(tablets) for synthesis

Synonym(s):
Sodium borohydride, Sodium tetrahydridoborate
Empirical Formula (Hill Notation):
H4BNa
CAS Number:
Molecular Weight:
37.83
MDL number:
EC Index Number:
241-004-4

vapor pressure

<1 hPa ( 25 °C)

Quality Level

form

solid

autoignition temp.

220 °C

potency

160 mg/kg LD50, oral (Rat)
230 mg/kg LD50, skin (Rabbit)

expl. lim.

3.02 % (v/v)

reaction suitability

reagent type: reductant

pH

11 (20 °C, 10 g/L in H2O)

bp

500 °C (decomposition)

mp

>360 °C (slow decomposition)

transition temp

flash point 69 °C

density

1.07 g/cm3 at 20 °C

bulk density

350‑500 kg/m3

storage temp.

2-30°C

InChI

1S/BH4.Na/h1H4;/q-1;+1

InChI key

YOQDYZUWIQVZSF-UHFFFAOYSA-N

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reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

reaction suitability

-

bp

500 °C (decomposition)

bp

500 °C (decomposition)

bp

-

bp

500 °C (decomposition)

mp

>360 °C (slow decomposition)

mp

>360 °C (slow decomposition)

mp

>300 °C (dec.) (lit.)

mp

>360 °C (slow decomposition)

density

1.07 g/cm3 at 20 °C

density

1.07 g/cm3 at 20 °C

density

-

density

1.07 g/cm3 at 20 °C

storage temp.

2-30°C

storage temp.

2-30°C

storage temp.

-

storage temp.

no temp limit

General description

Sodium borohydride (NaBH4) is the most commonly available borohydride used in several industrial applications. It is considered a selective reducing agent due to its ability to selectively reduce aldehydes and ketones into their corresponding alcohols in the presence of other functional groups such as nitro, ester, amide, lactone, epoxide, and nitriles. Ethanol and methanol are usually employed as solvents in NaBH4 reduction reactions.

Application

Sodium borohydride (tablets form) can be used as a potential candidate to store as well as generate hydrogen for energy-carrier,applications.

Analysis Note

Assay (hypochlorite): ≥ 96.0 %
Identity (ICP-OES): passes test

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1B - Water-react 1

Supplementary Hazards

Storage Class Code

4.3 - Hazardous materials, which set free flammable gases upon contact with water

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Hydrogen generation by both acidic and catalytic hydrolysis of sodium borohydride
Netskina OV, et al.
Catalysis for Sustainable Energy, 5(1), 41-48 (2018)
Sodium Borohydride
Banfi Luca, et al.
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2014)

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