8.06373

Sodium borohydride

fine granular for synthesis

• 동의어(들): Sodium borohydride, Sodium tetrahydridoborate
• 실험식(Hill 표기법): H₄BNa
• CAS Number: 16940-66-2
• Molecular Weight: 37.83
• MDL number: MFCD00003518
• UNSPSC 코드: 12352306
• EC 인덱스 번호: 241-004-4
• NACRES: NA.22

속성

• vapor pressure: <1 hPa ( 25 °C)
• Quality Level: 200
• 형태: solid
• autoignition temp.: 220 °C
• 효능: 160 mg/kg LD₅₀, oral (Rat); 230 mg/kg LD₅₀, skin (Rabbit)
• expl. lim.: 3.02 % (v/v)
• 반응 적합성: reagent type: reductant
• pH: 11 (20 °C, 10 g/L in H₂O)
• bp: 500 °C (decomposition)
• mp: >360 °C (slow decomposition)
• 전이 온도: flash point 69 °C
• density: 1.07 g/cm³ at 20 °C
• 벌크 밀도: 350‑500 kg/m³
• 저장 온도: 2-30°C
• InChI: 1S/BH4.Na/h1H4;/q-1;+1
• InChI key: YOQDYZUWIQVZSF-UHFFFAOYSA-N

설명

일반 설명

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.

애플리케이션

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.

분석 메모

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

안전성 정보

• 픽토그램: GHS02,GHS05,GHS06,GHS08
• 신호어: Danger
• 유해 및 위험 성명서: H260 - H301 - H314 - H360FD
• 예방조치 성명서: 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
• 보충제 위험성: EUH014
• 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