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843954 Lithium bis(trimethylsilyl)amide

843954
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Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaMolar Mass
4039-32-1223-725-6C₆H₁₈LiNSi₂167.33 g/mol
Description
Catalogue Number843954
References
Product Information
CAS number4039-32-1
EC number223-725-6
Hill FormulaC₆H₁₈LiNSi₂
Molar Mass167.33 g/mol
Structure formula ImageStructure formula Image
Quality LevelMQ200
Applications
ApplicationLithium bis(trimethylsilyl)amide for synthesis. CAS 4039-32-1, molar mass 167.33 g/mol.
Biological Information
Physicochemical Information
Boiling point114 - 116 °C (1013 hPa)
Density0.891 g/cm3
Flash point17 °C
Melting Point70 - 71 °C
pH value12.4 (H₂O, 23.7 °C)
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s)H228: Flammable solid.
H251: Self-heating: may catch fire.
H314: Causes severe skin burns and eye damage.
EUH014: Reacts violently with water.
Precautionary Statement(s)P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P235: Keep cool.
P260: Do not breathe dust or mist.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with 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.
Signal WordDanger
Storage class4.2 Pyrophoric and self-heating hazardous materials
WGKWGK 2 obviously hazardous to water
Disposal26
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.
Safety Information
Categories of dangerhighly flammable, corrosive
Product Usage Statements
Storage and Shipping Information
StorageStore below +30°C.
Packaging Information
Transport Information
Declaration (railroad and road) ADR, RIDUN 2925 , 4.1 (8), II
Declaration (transport by air) IATA-DGRUN 2925 , 4.1 (8), II
Declaration (transport by sea) IMDG-CodeUN 2925 , 4.1 (8), II
Supplemental Information
Specifications
Assay (HClO₄)≥ 97.0 %
Identity (IR)passes test