Hexamethyldisilazane (HMDS)

Physical and Chemical Properties

Molecular Formula: C6H19NSi2
Molecular Weight: 161.39
CAS No.: 999-97-3
Density (25¡æ): 0.77-0.778 g/cm3
Refractive Index (20¡æ): 1.4069-1.4089
Melting Point: -78¡æ
Flashing Point: 27¡æ
Boiling Point: 127¡æ

Technological Index

Application and Usage

It can be used as a hydrophobic treatment agent of fumed silica, hydroxy protective agent of antibiotics, surface treatment of diatomite and titanium powder, bonding agent of light etching agent in Semiconductor industry. It is widely used as Silylation of synthetic process of Amikacin, penicillins, cephalosporins, fluorouracil and Penicillin derivatives.

Package, Storage and Handling

N.W 150KG/Steel Drum.
Store in dry and well ventilated place, avoid direct sunlight and flame. The storage temperature is -50¡æ ¡« 45¡æ. Handling according to hazardous substances and prevention from knock, rain and insolation. It is easy to hydrolysis, can happen violent reaction in acid, should be kept in airtight container. Be careful when loading and unloading to avoid damages of the package.