806373.0025
Sodium borohydride fine granular for synthesis
| Ürün bilgisi |
| Synonyms |
Sodium tetrahydridoborate |
| Hill Formula |
H4BNa |
| Chemical formula |
NaBH4 |
| HS Code |
2850 00 20 |
| EC number |
241-004-4 |
| Molar mass |
37.83 g/mol |
| CAS number |
16940-66-2 |
| Kimyasal ve fiziksel veri |
| Ignition temperature |
220 °C |
| Solubility |
550 g/l (25 °C) (slow decomposition) |
| Melting point |
ca.400 °C (slow decomposition) |
| Molar mass |
37.83 g/mol |
| Density |
1.07 g/cm3 (20 °C) |
| Bulk density |
350 - 500 kg/m3 |
| pH value |
11 (10 g/l, H2O, 20 °C) |
| Boiling point |
ca.500 °C (decomposition) |
| Explosion limit |
3.02 %(V) |
| GHS'e göre güvenlik bilgisi |
| Hazard Statement(s) |
H260: In contact with water releases flammable gases which may ignite spontaneously.
H301 + H311: Toxic if swallowed or in contact with skin.
H314: Causes severe skin burns and eye damage.
|
| Precautionary Statement(s) |
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection.
P301 + P330 + P331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P402 + P404: Store in a dry place. Store in a closed container.
|
| Signal Word |
Danger |
| Hazard Pictogram(s) |
  
|
| RTECS |
ED3325000 |
| Storage class |
4.3 Materials that form flammble gases in contact with water |
| WGK |
WGK 2 water endangering |
| Disposal |
26
Alkali and alkaline-earth metals should be taken up in an inert solvent and neutralized by adding 2-propanol (Cat. No. 100995) dropwise with stirring. Should the reaction be more violent than expected, conversion should be carried out with tert-butanol or octanol. Caution: This reaction produces hydrogen, which can form explosive mixtures; take necessary precautions. When the reaction has ceased, add water dropwise; neutralize; container D. In the case of alkali or alkaline-earth borohydrides, add methanol (Cat. No. 106008) with stirring; in the case of alkali or alkaline-earth amides and hydrides, organoaluminium and organotin hydrides, add 2-propanol (Cat. No. 100995) dropwise. The substances, which are usually in solid form, should be previously suspended in an ether! When the respective reaction has ceased, hydrolize with water; then neutralize. Container D or E. Lithium aluminium hydride must also be destroyed by slurrying in an ether. Under an inert gas and with thorough stirring, add dropwise a 1:4 mixture of ethyl acetate (Cat. No. 822277) and the ether used to prepare the slurry. Always ensure thorough mixing (stirring)! Container A. |
| Güvenlik bilgisi |
| R Phrase |
R 15-24/25-35
Contact with water liberates extremely flammable gases.Toxic in contact with skin and if swallowed.Causes severe burns. |
| S Phrase |
S 14-26-36/37/39-43-45
Keep away from oxidising and acidic substances as well as heavy-metal compounds.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of fire, use sand. Never use water.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). |
| Categories of danger |
highly flammable, toxic, corrosive |
| Hazard Symbol |
 Flammable  Toxic
|
| Nakliye bilgisi |
| Declaration (railroad and road) ADR, RID |
UN 1426 Natriumborhydrid, 4.3, I |
| Declaration (transport by sea) IMDG-Code |
UN 1426 SODIUM BOROHYDRIDE, 4.3, I |
| Declaration (transport by air) IATA-DGR |
UN 1426 SODIUM BOROHYDRIDE, 4.3, I |
| Toksikolojik veri |
| LD 50 oral |
LD50 rat 160 mg/kg |
| LD 50 dermal |
LD50 rabbit 230 mg/kg |
| Spesifikasyonlar |
| Assay (hypochlorite) |
≥ 98 % |
