Hexamethyldisilane, 98+%, Thermo Scientific Chemicals

Product Code	Brand	Quantity
11464534	Thermo Scientific Alfa Aesar A13155.06	5 g
11474534	Thermo Scientific Alfa Aesar A13155.14	25 g
11484534	Thermo Scientific Alfa Aesar A13155.22	100 g

Description

Hexamethyldisilane acts as a silylating reagent for allylic acetates, aryl halides and diketones. It is a source material for vapor deposition during silicon carbide growth. It is also used in electronic and semiconducter industries.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Hexamethyldisilane acts as a silylating reagent for allylic acetates, aryl halides and diketones. It is a source material for vapor deposition during silicon carbide growth. It is also used in electronic and semiconducter industries.

Solubility
Insoluble in water. Soluble in alcohol, ether and acetone.

Notes
Stable under recommended storage conditions. Incompatible with oxidizing agents, acids and bases.

Chemical Identifiers

• CAS: 1450-14-2
• Molecular Weight (g/mol): 146.38
• InChI Key: NEXSMEBSBIABKL-UHFFFAOYSA-N
• PubChem CID: 74057
• SMILES: C[Si](C)(C)[Si](C)(C)C

• Molecular Formula: C6H18Si2
• MDL Number: MFCD00008258
• Synonym: hexamethyldisilane, disilane, hexamethyl, permethyldisilane, disilane, 1,1,1,2,2,2-hexamethyl, 1,1,1,2,2,2-hexamethyldisilane, trimethyl trimethylsilyl silane, ch3 6si2, hecamethyldisilane, disilane m6, hexamethyl disilane
• IUPAC Name: trimethyl(trimethylsilyl)silane

Specifications

• Boiling Point: 112°C to 113°C
• CAS: 1450-14-2
• MDL Number: MFCD00008258
• Beilstein: 1633463
• Synonym: hexamethyldisilane, disilane, hexamethyl, permethyldisilane, disilane, 1,1,1,2,2,2-hexamethyl, 1,1,1,2,2,2-hexamethyldisilane, trimethyl trimethylsilyl silane, ch3 6si2, hecamethyldisilane, disilane m6, hexamethyl disilane
• SMILES: C[Si](C)(C)[Si](C)(C)C
• Molecular Weight (g/mol): 146.38
• Formula Weight: 146.38
• Odor: Odorless

• Melting Point: 12°C to 13°C
• Molecular Formula: C6H18Si2
• UN Number: UN1993
• Flash Point: −1°C (30°F)
• InChI Key: NEXSMEBSBIABKL-UHFFFAOYSA-N
• IUPAC Name: trimethyl(trimethylsilyl)silane
• PubChem CID: 74057
• Percent Purity: ≥98%
• Chemical Name or Material: Hexamethyldisilane

Safety and Handling

GHS H Statement
H225-H319-H317-H335
Highly flammable liquid and vapour.
Causes serious eye irritation.
May cause an allergic skin reaction.
May cause respiratory irritation.

GHS P Statement
P210-P261-P303+P361+P353-P305+P351+P338-P405-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Avoid breathing dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

Danger

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Signal Word

• Danger

Hazard Category

• Serious eye damage/eye irritation Category 2
• Flammable liquid Category 2
• Skin sensitiser Category 1
• Specific target organ toxicity Category 3

Hazard Statement

• H225-Highly flammable liquid and vapour.
• H317-May cause an allergic skin reaction.
• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.

Precautionary Statement

• P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P303+P361+P353-IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower.
• P304+P340-IF INHALED: Remove person to fresh air and keep comfortable for breathing.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P312-Call a POISON CENTER/doctor/if you feel unwell.

RUO – Research Use Only