Product Identification

Product Name

Thiophene-2-methanol

Synonyms

(Thiophen-2-yl)methanol
2-(Hydroxymethyl)thiophene
2-Thenyl alcohol
2-Thienylcarbinol
2-Thienylmethanol
2-Thienylmethyl alcohol
4-Methyl-3-oxo-pentanoic acid ethyl ester
Ethyl 3-oxo-4-methylpentanoate
Ethyl 3-oxo-4-methylvalerate
Ethyl 4-methyl-3-oxopentanoate
Pentanoic acid, 4-methyl-3-oxo-, ethyl ester
Valeric acid, 4-methyl-3-oxo-, ethyl ester

CAS

636-72-6

CAS

7152-15-0

Formula

C5H6OS

Formula

C8H14O3

Molecular Weight

114.17

Molecular Weight

158.19

EINECS

211-264-3

EINECS

230-491-9

Beilstein/Gmelin

383595

Beilstein/Gmelin

636726

Beilstein Reference

4-03-00-01589

Beilstein Reference

5-17-03-00358

Physical and Chemical Properties

Appearance

Clear, colorless liquid.

Solubility in water

Slightly soluble

Solubility in water

Soluble

Melting Point

-9

Melting Point

0

Boiling Point

173

Boiling Point

207

Vapor Pressure

0.14 (25 C)

Density

1.002 g/cm3 (0 C)

Density

1.2147 g/cm3 (14.5 C)

pKa/pKb

10.61 (pKa)

pKa/pKb

13.88 (pKa)

Partition Coefficient

.71

Heat Of Vaporization

46.9 kJ/mol

Vapor Density

3.94

Refractive Index

1.250 (20 C)

Refractive Index

1.5280 (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. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

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

Inhalation

May cause respiratory tract irritation.

Skin

May cause skin irritation.

Skin

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

Skin

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

Eyes

May cause eye irritation.

Eyes

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

Eyes

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

Handling and Storage

Storage

Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.

Storage

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

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Handling

Wash thoroughly after handling. Use only in a well ventilated area. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. 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

May cause irritation of the digestive tract.

Ingestion

May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

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

EC Safety Phrase

S 23 24/25

EC Safety Phrase

S 24/25

UN (DOT)

1993

UN (DOT)

3334

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.

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.

Fire Fighting Measures

Flash Point

53

Flash Point

77

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. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

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

Accidental Release Measures

Small spills/leaks

Cover with sand, dry lime or soda ash and place in a closed container for disposal. Provide ventilation.

Small spills/leaks

Wash area with soap and water. Clean up spills immediately, using the appropriate protective equipment. Cover with sand, dry lime or soda ash and place in a closed container for disposal. Remove all sources of ignition. Provide ventilation.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

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

Decomposition

Carbon monoxide, oxides of sulfur, carbon dioxide.

Combustion Products

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

Transport Information

UN Number

1993

UN Number

3334

Hazard Class

3

Packing Group

I; II; III

HS Code

2934 99 90