- Dimercury dinitrate
A white solid. Usually exists as the dihydrate.
Fire gilding, blackening brass.
Registry Numbers and Inventories.
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Vapor density (air=1)
4.78 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Keep containers tightly closed. Keep away from light.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protect against both inhalation and absorption through the skin. Niosh-approved self-contained breathing apparatus must be worn. Rubber gloves, hooded rubber suits and rubber boots must be worn.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep material out of water sources and sewers.
May be explosive if shocked or heated. At high temperature mixture of substance and carbon decomposes explosively, a mixture of substance and phosphorus explodes when struck.
May react explosively.
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use foam, dry chemical, or carbon dioxide. Keep run-off water out of sewers and water sources.
May explode from heat or contamination.
Smoke from fire may contain toxic mercury vapor and oxides of nitrogen.
Initial effects of ingestion are gastric irritation with nausea, vomiting and abdominal pain.
Respiratory depression and cyanosis may be noted, due to methemoglobinemia.
Cyanosis that minimally responds to oxygen therapy may be noted, and is indicative of probable methemoglobinemia.
Immediate life support measures should be provided because of associated hypotension, seizures, and methemoglobinemia-induced anoxia. Emesis: ipecac-induced vomiting is not recommended because of the potential for seizures.
Move patient to fresh air. Monitor for respiratory distress. Administer oxygen and assist ventilation as required. Treatment should include recommendations listed in the oral exposure section when appropriate.
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes.
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.
USCG CHRIS Code
Std. Transport #