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Hexamethyldisiloxane
(CAS RN:107-46-0 Product Number:H0091)

Structure

Hexamethyldisiloxane

General Information

Product Number H0091

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Purity/Analysis Method >98.0%(GC)
Storage Temperature
M.F. / M.W. C6H18OSi2=162.38
CAS RN 107-46-0
Related CAS RN
MDL Number MFCD00008265
  • Product Details
  • Safety & Regulations
  • Reference & Application

Specification

Purity(GC) min. 98.0 %
Specific gravity (20/20) 0.7640 to 0.7710
Refractive index n20/D 1.3760 to 1.3790

Data of Reference

flp -2°C(lit.)
bp 100°C

References

Beilstein 4(3)1859
Reaxys-RN 1736258
PubChem SID 87570539
F&F 10,196
RTECS# JM9237000

GHS

Pictogram
Signal Word Danger
Hazard Statements
  • H225
  • :Highly flammable liquid and vapor.
  • H315
  • :Causes skin irritation.
  • H319
  • :Causes serious eye irritation.
Precautionary Statements
  • P210
  • :Keep away from heat, sparks, open flames and hot surfaces. – No smoking.
  • P233
  • :Keep container tightly closed.
  • P240
  • :Ground and bond container and receiving equipment.
  • P241+P242+P243
  • :Use explosion-proof electrical, ventilating and lighting equipment. Use only non-sparking tools. Take precautionary measures against static discharge.
  • P264
  • :Wash hands and face thoroughly after handling.
  • P280
  • :Wear protective gloves, eye protection.
  • P302+P352+P332+P313+P362+P364
  • :If on skin: Wash with plenty of soap and water. If skin irritation occurs: Get medical advice or attention. Take off contaminated clothing and wash it before reuse.
  • P305+P351+P338+P337+P313
  • :If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice or attention.
  • P370+P378
  • :In case of fire: Use dry chemical, dry sand or foam to extinguish.
  • P403+P235
  • :Store in a well-ventilated place. Keep cool.
  • P501
  • :Dispose of contents and container in accordance with local, regional, national regulations (e.g. US: 40 CFR Part 261, EU:91/156/EEC, JP: Waste Disposal and Cleaning Act, etc.).

Transport Information

UN Number 1993
Class 3
Packing Group II
HS Number 2931.90.9010

Application

Trimethylsilylating Reagent

Typical Procedure (Entry 1):
In a 100 mL flask equipped with a Dean-Stark trap are placed hexanoic acid (17.5 g, 151 mmol), hexamethyldisiloxane (48.7 g, 301 mmol), sulfuric acid (1.5 g, 15 mmol), and toluene (40 mL). The flask is then heated to gentle reflux, and the course of the reaction is monitored by GLC. After 72 h, the reaction mixture is distilled under reduced pressure to give trimethylsilyl hexanoate (20.2 g, Y. 71%) as a colorless liquid.

References

PubMed Literature

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