8.06373

Sodium borohydride

fine granular for synthesis

• 別名: Sodium borohydride, Sodium tetrahydridoborate
• 実験式（ヒル表記法）: H₄BNa
• CAS番号: 16940-66-2
• 分子量: 37.83
• MDL番号: MFCD00003518
• UNSPSCコード: 12352306
• EC Index Number: 241-004-4
• NACRES: NA.22

特性

• 蒸気圧: <1 hPa ( 25 °C)
• 品質水準: 200
• 形状: solid
• 自己発火温度: 220 °C
• 有効性: 160 mg/kg LD₅₀, oral (Rat); 230 mg/kg LD₅₀, skin (Rabbit)
• expl. lim.: 3.02 % (v/v)
• 反応適合性: reagent type: reductant
• pH: 11 (20 °C, 10 g/L in H₂O)
• bp: 500 °C (decomposition)
• mp: >360 °C (slow decomposition)
• 転移温度: flash point 69 °C
• 密度: 1.07 g/cm³ at 20 °C
• かさ密度: 350‑500 kg/m³
• 保管温度: 2-30°C
• InChI: 1S/BH4.Na/h1H4;/q-1;+1
• InChI Key: YOQDYZUWIQVZSF-UHFFFAOYSA-N

詳細

詳細

Sodium borohydride (NaBH₄) is the most commonly available borohydride used in several industrial applications. It is considered as 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.

アプリケーション

Sodium borohydride (fine granular) can be used as a reducing agent to prepare:

• Zero valent iron nanoparticles supported on mesoporous carbon (Starbon) by in situ reductions of Fe³⁺ ions.
• Ag nanoparticles on graphene using AgNO₃ as a precursor.
• Ag-Pd/ZrO₂ catalytic system applicable in plasmonic catalysis. It can also be used as a source to store as well as generate hydrogen for energy-carrier applications.

アナリシスノート

Assay (hypochlorite): ≥ 98.0 %
Identity (ICP-OES): passes test

安全性情報

• ピクトグラム: GHS02,GHS05,GHS06,GHS08
• シグナルワード: Danger
• 危険有害性情報: H260 - H301 - H314 - H360FD
• 注意書き: P231 + P232 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危険有害性の分類: Acute Tox. 3 Oral - Eye Dam. 1 - Repr. 1B - Skin Corr. 1B - Water-react 1
• 補足的ハザード: EUH014
• 保管分類コード: 4.3 - Hazardous materials, which set free flammable gases upon contact with water
• WGK: WGK 2
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable