MDHM 99% Heptametiltrisiloxane 1873-88-7 CAS NO.1873-88-7

chemical name

1,1,1,3,5,5,5-heptamethyltrisiloxane

chemical structure

cas no. : 1873-88-7

physical properties
colorless, transparent liquid
density(25℃): 0.819g/cm³
refractive index(25℃) : 1.382
boiling point: 142℃
flash point: 28℃

characteristic and usage

1,1,1,3,5,5,5-heptamethyltrisiloxane is a reactive siloxane with si-h bond. it can occur addition reaction with unsaturated alkenes, so it’s utilized widely to synthesize variety functional reactive silicone fluids which is used to form silicone modified copolymer, typical is polyethertrisiloxane surfacant used in pesticides.

specification

packaging and storage

1,1,1,3,5,5,5-heptamethyltrisiloxane is a volatile, inflammable and explosive dangerous compound, so should be hermetically storaged, do not stored in direct sunlight, keep container closed and away from heat, sparks and open flames. because of its reactivity, it will be hydrolyzed by moisture to form polymer and release hydrogen.
1,1,1,3,5,5,5-heptamethyltrisiloxane can little stimulate skin and eyes, so it is necessary to dress appliances for labor protection when contacting it.