26798-98-1

26798-98-1 - Names and Identifiers

Name	heptamethyldisilanamine
Synonyms	Heptamethyldisilanamine heptamethyldisilanamine DIMETHYLAMINOPENTAMETHYLDISILANE N,N-DIMETHYLAMINOPENTAMETHYLDISILANE Disilanamine, N,N,1,1,2,2,2-heptamethyl-
CAS	26798-98-1
InChI	InChI=1/C7H21NSi2/c1-8(2)10(6,7)9(3,4)5/h1-7H3

26798-98-1 - Physico-chemical Properties

Molecular Formula	C7H21NSi2
Molar Mass	175.42
Density	0.75
Boling Point	156 °C
Flash Point	78 °C
Vapor Presure	4.11mmHg at 25°C
Specific Gravity	0.75
pKa	10.00±0.70(Predicted)
Sensitive	8: reacts rapidly with moisture, water, protic solvents
Refractive Index	1.4431

26798-98-1 - Risk and Safety

Hazard Symbols	C - Corrosive
Risk Codes	34 - Causes burns
Safety Description	S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S25 - Avoid contact with eyes.
UN IDs	1993
TSCA	No

26798-98-1 - Introduction

heptamethyldisilanamine, also known as heptamethyldilanamine, chemical formula [(CH3)3Si]2NH, its molecular formula is C8H23N2Si2.

Properties: heptamethyldisilanamine is a colorless to light yellow liquid with a pungent odor. It has a high vapor pressure and a low melting point, soluble in some organic solvents, such as ethanol, ether and alkane. The compound has a strong basic, and can react with acid to form the corresponding salt. It has high stability and is sometimes used as a reagent or intermediate.

Purpose: heptamethyldisilanamine has multiple application areas. First, it can be used as a catalyst to catalyze the reaction between the silane and the diene body. Second, it is used in organic synthesis as a nitrogen source, which can be introduced into target molecules. In addition, due to its alkalinity, heptamethyldisilanamine can also be used as a metal surface treatment agent or surfactant.

Preparation method: The preparation method of heptamethyldisilanamine can be obtained by the reaction of methyl chlorosilane and chlorosilane. First, methylchlorosilane reacts with chlorosilane under alkaline conditions to produce a more stable intermediate, and then the final product is obtained by the reaction of the intermediate with ammonia.

Safety Information: The use of heptamethyldisilanamine should be carried out with appropriate safety measures, such as wearing protective gloves, safety glasses and protective masks to prevent contact with skin, eyes and respiratory tract. Avoid inhaling its vapors. During use, stay in a well-ventilated area. In case of contact with skin or eyes, rinse immediately with plenty of water. If eaten by mistake, seek medical attention immediately.

Last Update：2024-04-10 22:29:15