Product Identification

Product Name

tert-Butanol

Synonyms

2-Methyl-2-propanol
2-Methylpropan-2-ol
tert-Butanol
Trimethyl carbinol

CAS

75-65-0

Formula

C4H10O

Molecular Weight

74.12

EINECS

200-889-7

RTECS

EO1925000

RTECS Class

Tumorigen; Mutagen; Reproductive Effector; Primary Irritant

Merck

12,1577

Beilstein/Gmelin

906698

Beilstein Reference

4-01-00-01609

EC Index Number

603-005-00-1

EC Class

Highly flammable; Harmful

Physical and Chemical Properties

Appearance

Colorless liquid or colorless or white crystals with a camphor-like odor.

Solubility in water

Soluble

Melting Point

25.3

Boiling Point

82.2

Vapor Pressure

46 (25 C)

Density

0.7887 g/cm3 (20 C)

pKa/pKb

19(at 25℃) (pKa)

Partition Coefficient

.35

Heat Of Vaporization

37.9 kJ/mol

Heat Of Combustion

-2411 kJ/mol

Usage

Denaturant for ethanol, mfg flotation agents, flavors, perfumes.

Saturation Concentration

3.96% at 20 C

Vapor Density

2.55

Odor threshold

219 mg/m3

Refractive Index

1.38468 (20 C)

First Aid Measures

Ingestion

Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious person. Call a physician.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. Do NOT allow victim to rub or keep eyes closed.

Handling and Storage

Storage

Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Do not get on skin or in eyes. Do not ingest or inhale. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.

Hazards Identification

Inhalation

Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. Causes respiratory tract irritation. May cause liver and kidney damage. May cause lung damage. Aspiration may lead to pulmonary edema. Vapors may cause dizziness or suffocation. May cause blood changes. May cause burning sensation in the chest.

Skin

Causes skin irritation. May be absorbed through the skin in harmful amounts. Prolonged and/or repeated contact may cause defatting of the skin and dermatitis. May cause cyanosis of the extremities.

Eyes

Vapors can be irritating, causing tearing and pain. Splashes cause inflammation and blurred vision.

Ingestion

May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver and kidney damage. May cause central nervous system depression, characterized by excitement, followed by headache, dizziness, drowsiness, and nausea. Advanced stages may cause collapse, unconsciousness, coma and possible death due to respiratory failure. Heavy exposure may cause irritation of the eyes, nose and throat; headache; nausea; fatigue; and dizziness.

Hazards

Vapors may form an explosive mixture with air. Vapors can travel to a source of ignition and flash back. Will burn if involved in a fire. Flammable Liquid. Can release vapors that form explosive mixtures at temperatures above the flashpoint. Use water spray to keep fire-exposed containers cool. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Containers may explode in the heat of a fire. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas.

EC Risk Phrase

R 11 20

EC Safety Phrase

S 9 16

UN (DOT)

1120

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 and appropriate protective clothing to prevent skin exposure.

Respirators

A full facepiece respirator with organic vapor cartridge may be worn up to 50 times the exposure limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest. For emergencies or instances where the exposure levels are not known, use a full-facepiece positive-pressure, air-supplied respirator.

Exposure Effects

Repeated eye exposure may cause visual abnormalities including blurred vision and photosensitivity.

Poison Class

4

Fire Fighting Measures

Flash Point

11

Autoignition

478

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.

Upper exp. limit

8.0

Lower exp. limit

2.3

Fire Potential

This chemical is flammable.

Accidental Release Measures

Small spills/leaks

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. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Use a spark-proof tool. A vapor suppressing foam may be used to reduce vapors.

Stability and Reactivity

Disposal Code

1

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Incompatibilities

Strong oxidizing agents.

Decomposition

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

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

1120

Hazard Class

3

Packing Group

II; III

HS Code

2905 14 10