








Name of benzo-methyl silicon oil
Chinese name super-high vacuum diffusion pump silicon oil (type 275)
English name
Chinese alias methamphetamine silicon oil | polymethyl benzene organic silicon resin | polymethyl benzene siloxane
English alias. More
Physico-chemical properties of phenylmethyl silicon oil
Density 1. 05
Boiling point > 140oc 0. 002mm mg (lit.)
Molecular c11h16osi
Molecular weight 192. 33 000
Flash, 620 °f
Accurate mass 192. 97000
Psa 9. 23,000
Logp 1. 73620
Appearance. Transparent to paddy yellow liquid
Vapour density > 1 (vs air)
Vapour pressure < 5 mm mg (25 °c)
Refraction rate n20/d 1. 5365 (lit.)
Storage conditions
In a sealed container and in a cool, dry place. Storage must be far away from oxidizers and should not be stored with acid and alkaline metals。
Physical and chemical properties of pabedas
Density 1. 2 ± 0. 1 g/cm3
Melting point 255-257°c
Molecular c13h17n3o2
Molecular weight 247. 293
Accurate quality 247. 132080
Psa 67. 01000
Logp 3. 57
Solid
Refraction rate 1. 632
Storage conditions. Ventilated and dry storage



