Merck 806373 0100 Sodium Borohydride Fine Granular For Synthesis 100 GR.

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Description
Catalogue Number	806373
Synonyms	Sodium tetrahydridoborate

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Product Information
CAS number	16940-66-2
EC number	241-004-4
Hill Formula	H₄BNa
Chemical formula	NaBH₄
Molar Mass	37.83 g/mol
HS Code	2850 00 20
Quality Level	MQ200

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Applications
Application	Sodium borohydride fine granular for synthesis. CAS No. 16940-66-2, EC Number 241-004-4.

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Physicochemical Information
Boiling point	500 °C (decomposition)
Density	1.07 g/cm3 (20 °C)
Explosion limit	3.02 %(V)
Flash point	69 °C not applicable
Ignition temperature	220 °C
Melting Point	>360 °C (slow decomposition)
pH value	11 (10 g/l, H₂O, 20 °C)
Vapor pressure	<1 hPa (25 °C)
Bulk density	350 - 500 kg/m3

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Toxicological Information
LD 50 oral	LD50 Rat 160 mg/kg
LD 50 dermal	LD50 Rabbit 230 mg/kg

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Safety Information according to GHS
Hazard Pictogram(s)	\n\n\n\n
Hazard Statement(s)	H260: In contact with water releases flammable gases which may ignite spontaneously.\nH301: Toxic if swallowed.\nH314: Causes severe skin burns and eye damage.\nH360FD: May damage fertility. May damage the unborn child.\nEUH014: Reacts violently with water.
Precautionary Statement(s)	P231 + P232: Handle and store contents under inert gas. Protect from moisture.\nP260: Do not breathe dust.\nP280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.\nP303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.\nP304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.\nP305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.\nP402 + P404: Store in a dry place. Store in a closed container.
Signal Word	Danger
RTECS	ED3325000
Storage class	4.3 Hazardous materials, which set free flammable gases upon contact with water
WGK	WGK 2 obviously hazardous to water
Disposal	26\nAlkali 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.

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Safety Information
Categories of danger	highly flammable, toxic, corrosive

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Storage and Shipping Information
Storage	Store below +30°C.

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Transport Information
Declaration (railroad and road) ADR, RID	UN 1426 , 4.3, I
Declaration (transport by air) IATA-DGR	UN 1426 , 4.3, I
Declaration (transport by sea) IMDG-Code	UN 1426 , 4.3, I

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Specifications
Color according to Munsell color system	not more intensely colored than reference standard NE12
Assay (hypochlorite)	≥ 98.0 %
Identity (ICP-OES)	passes test