30
RESPIRATORY PROTECTION: Atmospheric levels should be maintained below the exposure
guideline. When respiratory protection is required for certain operations, use an approved air-
purifying respirator. In misty atmospheres, use an approved mist respirator.
EXPOSURE GUIDELINES: Propylene glycol: AIHA WEEL is 50 ppm total, 10 mg/m3 aerosol
only.
9. PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE/PHYSICAL STATE:
Clear yellow liquid.
ODOUR:
Odorless
VAPOUR PRESSURE:
0.22 mmHg @ 20
E
C
VAPOUR DENSITY:
2.6
BOILING POINT:
320
E
F, 160
E
C
SOLUBILITY IN WATER/MISCIBILITY:
Complete
SPECIFIC GRAVITY OR DENSITY:
1.058 @ 25/25
E
C
10. STABILITY AND REACTIVITY
CHEMICAL STABILITY: Thermally stable at typical use temperatures.
CONDITIONS TO AVOID: Avoid use temperatures above 450
E
F, 232
E
C. Product can degrade
at elevated temperatures. Generation of gas during decomposition can cause pressure in
closed systems.
INCOMPATIBILITY WITH OTHER MATERIALS: Avoid contact with oxidizing materials. Avoid
contact with strong acids
HAZARDOUS DECOMPOSITION PRODUCTS: Hazardous decomposition products depend
upon temperature, air supply and the presence of other materials.
HAZARDOUS POLYMERIZATION: Will not occur.
11. TOXICOLOGICAL INFORMATION
(See Section 3 for Potential Health Effects. For
detailed toxicological data, write or call the address or non-emergency number shown in
Section 1).
SKIN: The LD50 for skin absorption in rabbits is >10,000 mg/kg.
SKIN:
The LD50 for skin absorption in rabbits is >10,000 mg/kg.
INGESTION:
The oral LD50 for rats is 20,000 - 34,000 mg/kg.
MUTAGENICITY:
In vitro mutagenicity studies were negative. Animal mutagenicity studies
were negative.
