Product Identification

Product Name

Trifluoroacetic acid

Synonyms

2,2,2-Trifluoroacetic acid
Perfluoroacetic acid
TFA
Trifluoroethanoic acid

CAS

76-05-1

Formula

C2HF3O2

Molecular Weight

114.02

EINECS

200-929-3

RTECS

AJ9625000

RTECS Class

Mutagen; Reproductive Effector

Merck

12,9812

Beilstein/Gmelin

742035

Beilstein Reference

4-02-00-00458

EC Index Number

607-091-00-1

EC Class

Harmful; Corrosive; Dangerous for the Environment

Physical and Chemical Properties

Appearance

Colorless liquid. Pungent odor.

Solubility in water

Miscible

Melting Point

-15

Boiling Point

71.8

Vapor Pressure

96 (25 C)

Density

1.5351 g/cm3 (20 C)

pKa/pKb

0.67 (pKa)

Partition Coefficient

1.24

Heat Of Vaporization

38.05 kJ/mol

Usage

In organic synthesis, ion pairing agent in liquid chromatography and a solvent in nmr spectroscopy.

Vapor Density

3.9

Refractive Index

1.28 (20 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Possible aspiration hazard. 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. DO NOT use mouth-to-mouth respiration.

Skin

Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. SPEEDY ACTION IS CRITICAL! Destroy contaminated shoes.

Eyes

Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Gently lift eyelids and flush continuously with water. Extensive irrigation is required (at least 30 minutes).

Handling and Storage

Storage

Store in a cool, dry place. Keep container closed when not in use. Corrosives area. Keep containers tightly closed. Store in metal containers.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Discard contaminated shoes. Keep away from strong bases and metals.

Hazards Identification

Ingestion

May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns.

Inhalation

May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation. Causes chemical burns to the respiratory tract.

Skin

Causes skin burns.

Eyes

May result in corneal injury. Contact with eyes may cause severe irritation, and possible eye burns.

Hazards

Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

EC Risk Phrase

R 20 35 52/53

EC Safety Phrase

S 9 26 27 28 45 61

UN (DOT)

2699

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 minimize contact with skin.

Respirators

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Poison Class

3

Fire Fighting Measures

Flash Point

-3

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Substance is noncombustible. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Extinguishing media: Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.

Fire Potential

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Provide ventilation.

Stability and Reactivity

Incompatibilities

Metals, oxidizing agents.

Stability

Stable under normal temperatures and pressures.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, hydrogen fluoride.

Combustion Products

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Transport Information

UN Number

2699

Hazard Class

8

Packing Group

I

HS Code

2915 90 80