A white to light yellow crystalline solid.
As indicator in 0.1% Alcohol soln, ph range: 5.6 Colorless, 7.6 Yellow.
Registry Numbers and Inventories.
EC Index Number
Harmful; Danger of cumulative effects
R 20/21/22 33
Agricultural Chemical and Pesticide; Tumorigen; Mutagen
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
110 - 114
Boiling point, °C
Vapor pressure, mmHg
0.6 (120 C)
Vapor density (air=1)
Odor Threshold Odor threshold 58.3 mg/L
1.236 g/cm3 (160 C)
Solubility in water
2.56 cp (21 C)
46.3 g/s2 (121 C)
Partition coefficient, pKow
Heat of fusion
Heat of vaporization
Heat of combustion
Hazards and Protection.
Store in a tightly closed container. Keep away from food and drinking water. Keep from contact with oxidizing materials.
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid prolonged or repeated contact with skin. Wash clothing before reuse.
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.
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.
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stable under normal shipping and handling conditions.
Strong oxidizing agents; Strong bases; Diethyl phosphite
Nitrogen oxides, carbon monoxide, carbon dioxide.
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Use foam, dry chemical, or carbon dioxide. Keep run-off water out of sewers and water sources.
Slightly flammable. Combustible solid, may thermally decompose in absence of air.
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Toxic oxides of nitrogen and fumes of unburned material may form in fires.
May cause liver and kidney damage.
Harmful if swallowed. May cause central nervous system depression, kidney damage, and liver damage. May cause methemoglobinemia, cyanosis, convulsions, and death. May cause digestive tract disturbances.
May cause respiratory tract irritation.
May cause severe skin irritation.
May cause severe eye irritation.
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. Call a poison control center.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
USCG CHRIS Code
2908 90 00
Std. Transport #