Very pale tan-amber to brown crystalline solid, discolors in light, pleasant floral odor.
Manufacture of dyes, stabilizing nitrocellulose explosives & celluloid, in analytical chemistry for detection of nitrates, chlorates and other oxidizing substances with which, in presence of sulfuric acid, it gives a deep-blue color, fungicide.
Registry Numbers and Inventories.
EC Index Number
Toxic; Danger of cumulative effects; Dangerous for the Environment
R 23/24/25 33 50/53
S 28 36/37 45 60 61
Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
53 - 54
Boiling point, °C
Vapor pressure, mmHg
0.00021 (20 C)
Vapor density (air=1)
1.165 g/cm3 (20 C)
Solubility in water
6.1 cp (50 C)
39.2 g/s2 (60 C)
1.6189 (64 C)
Partition coefficient, pKow
Heat of fusion
Heat of vaporization
Heat of combustion
Hazards and Protection.
Keep away from sources of ignition. Do not store in direct sunlight. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from light.
Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Do not ingest or inhale. Store protected from light.
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.
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stable under normal shipping and handling conditions.
Oxidizing agents, strong acids, isocyanates, hexachloromelamine, organic anhydrides, aldehydes, trichloromelamine.
Nitrogen oxides, carbon monoxide, carbon dioxide.
Upper exp. limit, %
Lower exp. limit, %
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Extinguishing media: Water or foam may cause frothing. In case of fire, use carbon dioxide, dry chemical powder or appropriate foam.
Contact with metals may evolve flammable hydrogen gas.
Toxic oxides of nitrogen may form in fire.
TLV (as TWA): ppm; 10 mg/m3 (ACGIH 1995-1996). NIOSH REL: TWA 10 mg/m3
Prolonged or repeated skin contact may cause dermatitis. May cause reproductive and fetal effects. There is a danger of cumulative effects.
May cause irritation of the digestive tract. May cause effects similar to those of acute inhalation.
Inhalation of vapor may cause respiratory tract irritation. May cause methemoglobinemia, cyanosis, convulsions, tachycardia, dyspnea, and death. May cause adverse central nervous system effects including headache, convulsions, and possible death. May cause bladder injury and hypertension.
Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
Causes eye irritation.
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.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
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. Destroy contaminated shoes.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.