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Potassium bis(trimethylsilyl)amide

Potassium bis(trimethylsilyl)amide Structure
CAS No.
40949-94-8
Chemical Name:
Potassium bis(trimethylsilyl)amide
Synonyms
KHMDS;POTASSIUM HEXAMETHYLDISILAZIDE;HEXAMETHYLDISILAZANE POTASSIUM SALT;HMDS K;KHMDS 0.7M;PotassiumHMDS;Potassium bis(trimet;Potassium bis(trimethyL;potassiumhexamethyldisil;POTASSIUM HEXAMETHYLDISLAZANE
CBNumber:
CB8139300
Molecular Formula:
C6H18KNSi2
Molecular Weight:
199.48
MOL File:
40949-94-8.mol
MSDS File:
SDS
Modify Date:
2024/4/8 17:36:13

Potassium bis(trimethylsilyl)amide Properties

Melting point 194-195°C
Boiling point 111 °C
Density 0.877 g/mL at 25 °C
vapor density 3.2 (vs air)
vapor pressure 54 mm Hg ( 25 °C)
refractive index 1.4920
Flash point 45 °F
storage temp. Refrigerator
solubility Miscible with terahydrofuran, ether, benzene and toluene.
form Liquid
Specific Gravity 0.877
color clear to slightly hazy yellow
Water Solubility Reacts with water.
Hydrolytic Sensitivity 8: reacts rapidly with moisture, water, protic solvents
Sensitive Moisture Sensitive
BRN 4006754
CAS DataBase Reference 40949-94-8(CAS DataBase Reference)
EPA Substance Registry System Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, potassium salt (1:1) (40949-94-8)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P280-P301+P330+P331-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  C,F,Xn
Risk Statements  14-34-67-65-63-48/20-11-40-36/37/38-19-37
Safety Statements  26-36/37/39-45-62-43-46-16-36/37
RIDADR  UN 3263 8/PG 3
WGK Germany  3
1-3-10
TSCA  No
HazardClass  3
PackingGroup  II
HS Code  29319090

Potassium bis(trimethylsilyl)amide price More Price(21)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 775061 Potassium bis(trimethylsilyl)amide solution 1.0?M in 2-methyltetrahydrofuran 40949-94-8 100ML ₹11530 2022-06-14 Buy
Sigma-Aldrich(India) 775061 Potassium bis(trimethylsilyl)amide solution 1.0?M in 2-methyltetrahydrofuran 40949-94-8 4X25ML ₹13440 2022-06-14 Buy
Sigma-Aldrich(India) 775061 Potassium bis(trimethylsilyl)amide solution 1.0?M in 2-methyltetrahydrofuran 40949-94-8 500ML ₹40990 2022-06-14 Buy
Sigma-Aldrich 766941 Potassium bis(trimethylsilyl)amide solution 1.0?M in methyl tert-butyl ether 40949-94-8 100ML ₹15534.4 2022-06-14 Buy
Sigma-Aldrich(India) 766941 Potassium bis(trimethylsilyl)amide solution 1.0?M in methyl tert-butyl ether 40949-94-8 100ML ₹15534.4 2022-06-14 Buy
Product number Packaging Price Buy
775061 100ML ₹11530 Buy
775061 4X25ML ₹13440 Buy
775061 500ML ₹40990 Buy
766941 100ML ₹15534.4 Buy
766941 100ML ₹15534.4 Buy

Potassium bis(trimethylsilyl)amide Chemical Properties,Uses,Production

Chemical Properties

Colorless to amber solution

Uses

Potassium bis(trimethylsilyl)amide is a strong base used in the alkylation carbonyl compounds.1

Preparation

Potassium Hexamethyldisilazide is prepared and isolated by the procedure of Wannagat and Niederpruem. A more convenient in situ generation from potassium hydride and hexamethyldisilane is described by Brown.

General Description

This product, 1.0 M in 2-methyltetrahydrofuran aligns with "Safer Solvents and Auxiliaries", "Use of Renewable Feedstocks" and "Inherently Safer Chemistry for Accident Prevention".

Potassium bis(trimethylsilyl)amide Preparation Products And Raw materials

Raw materials

Preparation Products

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1,1,1,3,3,3-HEXAMETHYLDISILAZANE POTASSIUM SALT HEXAMETHYLDISLAZANE POTASSIUM SALT POTASSIUM BIS(TRIMETHYLSILYL)AMIDE POTASSIUMHEXAMETHYLDISILAZANE POTASSIUM HEXAMETHYLDISLAZANE PotassiumhexamethyldislazaneinTHF Potassiumbis(trimethylsilyl)amide11%intoluene Hexamethyldislazanepotassiumsalt12%toluene PotassiumHMDS hexamethyldisilazane potassium salt solution potassium bis(trimethylsilyl)amide solution Potassium hexamethyldisilazane, in tetrahydrofuran Potassium hexamethyldisilazane, in toluene POTASSIUM BIS(TRIMETHYLSILYL)AMIDE SOL., ~0.5 M IN TOLUENE POTASSIUM BIS(TRIMETHYLSILYL)AMIDE, 0.5M SOLUTION IN TOLUENE POTASSIUM BIS(TRIMETHYLSILYL)AMIDE, DRY POWDER KHMDS~Potassium hexamethyldisilazide Potassium Bis(trimethylsilyl)amide, 1M THF Potassium Hexamethyldisilazide 1.0 M Potassium bis(trimethylsilyl)amide, 20% w/w, 0.91M in THF, packaged under Argon in resealable ChemSealTM bottles Potassium bis(trimethylsilyl)amide, 15% w/w in toluene, packaged under Argon in resealable ChemSealTM bottles Potassium bis(trimethylsilyl)amide, 15% soln. in toluene Potassium bis(trimethylsilyl)amide, 15% w/w in toluene Potassium Bis(trimethylsily)amide Potassium Bis(trimethylsily)amide,0.5M in Toluene Potassium bis(trimethylsilyl)amide, 20% w/w, 0.91M in THF, packaged under Argon in resealable ChemSe Potassium bis(trimethylsilyl)amide, 15% w/w in toluene, packaged under Argon in resealable ChemSeal^ POTASSIUM BIS(TRIMETHYLSILYL)AMIDE IN 1M THF,SOLUTION POTASSIUM BIS(TRIMETHYLSILYL)AMIDE: 15% IN TOLUENE POTASSIUM 1,1,1,3,3,3-HEXAMETHYL-DISILAZANE Potassium bis(trimethylsilyl)amide [1M solution in THF] Potassium bis(trimethylsilyl)amide, 0.7M (15 wt.%) solution in toluene, AcroSeal Potassium bis(trimethylsilyl)amide solution,Hexamethyldisilazane potassium salt solution, Potassium hexamethyldisilazide solution Potassium bis(trimethylsilyl)amide,Hexamethyldisilazane potassium salt Potassium bis(trimet PotassiuM Bis(triMethylsilyl)aMide (KHMDS), 1M in THF PotassiuM bis(triMethylsilyl)aMide ,0% [1M solution in THF] Potassium hexamethyldisilazide solution Potassium bis(trimethylsilyl)amide solution, 20 wt. % in THF (0.91M) HexamethyldisilazanePotassiumSalt(15%inToluene) potassiumhexamethyldisilazane(solutioninthf) potassiumhexamethyldisilazane,khmds,in potassiumhexamethyldisilazane,khmds,intetrahydrofuran potassiumhexamethyldisilazane,khmds,intoluene Potassium bis(trimethylsilyl)amide, 20% w/w, 0.91M in THF Hexamethyldisilazane and Trimethylchlorosilane in Anhydrous Pyridine Trimethylchlorosilane and Hexamethyldisilazane in Anhydrous Pyridine Potassium Hexamethyldisilazide (11% in Toluene, ca. 0.5mol/L) Potassium Bis(Trimethylsilyl)amide (0.5M) POTASSIUM BIS(TRIMETHYLSILYL)AMIDE, 20% in THF Potassium hexamethyldisilazide, 0.5M in Toluene, packaged under Argon in resealable ChemSeal[t bottles Potassium hexamethyldisilazide, 15% w/w in Toluene, packaged under Argon in resealable ChemSeal bottles Potassium hexamethyldisilazide, 20% w/w, 0.91M in THF Potassium hexamethyldisilazide, 20% w/w, 0.91M in THF, packaged under Argon in resealable ChemSeal bottles Hexamethyldisilazane solution potassium salt, Potassium hexamethyldisilazide solution Potassium bis(trimethylsilyl)amide, 20% w/w, 0.91M in THF, packaged under Argon in resealable ChemSeal^t bottles Potassium bis(trimethylsilyl)amide, 15% w/w in toluene, packaged under Argon in resealable ChemSeal^t bottles Potassium bis(trimethylsilyl)amide0.5M solution in tolueneAcroSeal§3