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Bis(trimethylsilyl)trifluoroacetamide(25561-30-2)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
Bis(trimethylsilyl)trifluoroacetamide

Synonyms
2,2,2-Trifluoro-N,O-bis(trimethylsilyl)acetamide
BSTFA
Ethanimidic acid, 2,2,2-trifluoro-N-(trimethylsilyl)-, trimethylsilyl ester
N,O-Bis(trimethylsilyl)trifluoracetamide
N,O-Bis(trimethylsilyl)trifluoroacetamide
Trifluoro-N,O-bis(trimethylsilyl)acetamide

CAS
25561-30-2

Formula
C8H18F3NOSi2

Molecular Weight
257.41000000000003

EINECS
247-103-9

Beilstein/Gmelin
3607620

EC Class
flammable, irritant

Physical and Chemical Properties

Appearance
Clear, colorless liquid.

Solubility in water
Insoluble

Melting Point
-41

Boiling Point
145

Vapor Pressure
17 (43 C)

Density
0.96 g/cm3

pKa/pKb
1.82 (pKa)

Refractive Index
1.38 (20 C)

First Aid Measures

Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.

Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.

Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.

Handling
Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Ingestion
The toxicological properties of this substance have not been fully investigated.

Inhalation
The toxicological properties of this substance have not been fully investigated.

Skin
No information regarding skin irritation and other potential effects was found.

Eyes
No information regarding eye irritation and other potential effects was found.

Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.

EC Risk Phrase
R 10 34

EC Safety Phrase
S 16 26 36/37/39 45

UN (DOT)
1993

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Fire Fighting Measures

Flash Point
34

Autoignition
>300

Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use agent most appropriate to extinguish fire.

Fire Potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.