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Alfa Aesar™ Hexamethyldisilazane, Electronic grade, 99+%


Quantity 25mL

Manufacturer: alfa aesar™  L16519-AC

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Catalog No. AAL16519AC

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Description & Specifications

Chemical Identifiers

Odor Odorless
Boiling Point 126°C
Melting Point −78°C
Quantity 25mL
Flash Point 8°C (46°F)
Chemical Name or Material Hexamethyldisilazane
CAS 999-97-3
Purity Grade Electronic Grade
Assay ≥99%
Molecular Formula C6H19NSi2
Linear Formula (CH3)3SiNHSi(CH3)3
Formula Weight 161.40g/mol
MDL Number MFCD00008259
UN Number UN3286
Beilstein 635752
Merck Index 14,4689
Synonym Bis(trimethylsilyl)amine; HMDS
Health Hazard 1 Danger
Health Hazard 2 GHS H Statement
H225-H311-H331-H314-H318-H302
Highly flammable liquid and vapor.
Toxic in contact with skin.
Toxic if inhaled.
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.
Health Hazard 3 GHS P Statement
P210-P303+P361+P353-P305+P351+P338-P361-P405-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
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.
Remove/Take off immediately all contaminated clothing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
DOT Information Transport Hazard Class: 3; Packing Group: II; Proper Shipping Name: FLAMMABLE LIQUID, TOXIC, CORROSIVE, N.O.S.
RTECS Number JM9230000
TSCA TSCA

Specifications

Chemical Name or Material Hexamethyldisilazane
CAS 999-97-3
Purity Grade Electronic Grade
Molecular Formula C6H19NSi2
Linear Formula (CH3)3SiNHSi(CH3)3
Formula Weight 161.40g/mol
MDL Number MFCD00008259
UN Number UN3286
Beilstein 635752
Merck Index 14,4689
Synonym Bis(trimethylsilyl)amine; HMDS

Applications
Hexamethyldisilazane is used as a solvent in organic synthesis and organometallic chemistry. It is often used as an adhesion promoter for photoresist in photolithography. Further, it is used for the preparation of trimethylsilyl ethers from hydroxy compounds. It is used as an alternative to critical point drying during sample preparation in electron microscopy. It is added to analyte to get silylated diagnostic products during pyrolysis in gas chromatography- mass spectrometry.

Solubility
Miscible with methanol, ethyl ether, chloroform and benzene. Immiscible with water.

Notes
Incompatible with strong oxidizing agents and strong acids.  

Accessories

Danger

GHS P Statement
P210-P303+P361+P353-P305+P351+P338-P361-P405-P501a
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
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.
Remove/Take off immediately all contaminated clothing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H225-H311-H331-H314-H318-H302
Highly flammable liquid and vapor.
Toxic in contact with skin.
Toxic if inhaled.
Causes severe skin burns and eye damage.
Causes serious eye damage.
Harmful if swallowed.