Product Identification

Product Name

1,3-Propanediol

Synonyms

1,3-Dihydroxypropane
2-Deoxyglycerol
PG
Propane-1,3-diol
Trimethylene glycol

CAS

504-63-2

Formula

C3H8O2

Molecular Weight

76.099999999999994

EINECS

207-997-3

RTECS

TY2010000

RTECS Class

Mutagen

Merck

12,9845

Beilstein/Gmelin

969155

Beilstein Reference

4-01-00-02493

Physical and Chemical Properties

Appearance

Colorless to pale yellow, viscous liquid, odorless, hygroscopic.

Solubility in water

Soluble

Melting Point

-32

Boiling Point

214

Vapor Pressure

.075

Density

1.0597 g/cm3 (20 C)

Heat Of Vaporization

72.4 kJ/mol

Heat Of Combustion

-1843 kJ/mol

Usage

Intermediate in manufacture of polyesters and other products; by-product in the manufacture of glycerin through the saponification of fat; used to lower the freezing point of water.

Saturation Concentration

Low. Probably less than 260 ppm at 20 C (analogy to propylene glycol).

Refractive Index

1.4398 (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

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

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. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.

Handling

Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with skin and eyes. 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

May cause irritation of the digestive tract. May cause central nervous system depression.

Inhalation

May cause respiratory tract irritation. May cause effects similar to those described for ingestion.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

EC Safety Phrase

S 24/25

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 a chemical apron. Wear appropriate protective clothing to minimize contact with skin.

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

140

Autoignition

405

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Combustible Liquid. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam. Cool containers with flooding quantities of water until well after fire is out.

Upper exp. limit

16.6

Lower exp. limit

2.6

Accidental Release Measures

Small spills/leaks

Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.

Stability and Reactivity

Disposal Code

1

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents, acid chlorides, acid anhydrides, chloroformates, reducing agents.

Decomposition

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

Transport Information

HS Code

2905 39 80