8.18823

Sodium borohydride

(tablets) for synthesis

• Synonym(s): Sodium borohydride, Sodium tetrahydridoborate
• Empirical Formula (Hill Notation): H₄BNa
• CAS Number: 16940-66-2
• Molecular Weight: 37.83
• MDL number: MFCD00003518
• UNSPSC Code: 12352306
• EC Index Number: 241-004-4
• NACRES: NA.22

Properties

• vapor pressure: <1 hPa ( 25 °C)
• Quality Level: 200
• 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

Description

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

Safety Information

• pictograms: GHS02,GHS05,GHS06,GHS08
• signalword: Danger
• hcodes: H260 - H301 - H314 - H360FD
• pcodes: P231 + P232 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1B - Water-react 1
• supp_hazards: EUH014
• Storage Class: 4.3 - Hazardous materials, which set free flammable gases upon contact with water
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable