Mercurous nitrate

  • Dimercury dinitrate
Formula
Hg2NO3)2
Structure
Description
A white solid. Usually exists as the dihydrate.
Uses
Fire gilding, blackening brass.

Registry Numbers and Inventories.
CAS
10415-75-5
EC (EINECS/ELINCS)
233-886-4
RTECS
OW8000000
RTECS class
Other
UN (DOT)
1627
Merck
12,5954
Beilstein/Gmelin
48108 (G)
RCRA
D009
Swiss Giftliste 1
G-2826
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
HgNO3
Formula mass
525.19
Melting point, °C
-38.9
Vapor density (air=1)
1.9
Density
4.78 g/cm3 (20 C)
Solubility in water
Soluble

Hazards and Protection.
Storage
Keep containers tightly closed. Keep away from light.
Handling
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.
Protection
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.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep material out of water sources and sewers.
Stability
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.
Incompatibilities
May react explosively.

Fire.
Fire fighting
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.
Fire potential
Oxidizer.
Hazards
May explode from heat or contamination.
Combustion products
Smoke from fire may contain toxic mercury vapor and oxides of nitrogen.
Health
3
 
Flammability
1
 
 
Reactivity
1
 

Health.
Poison_Class
2
Exposure effects
   Ingestion
Initial effects of ingestion are gastric irritation with nausea, vomiting and abdominal pain.
   Inhalation
Respiratory depression and cyanosis may be noted, due to methemoglobinemia.
   Skin
Cyanosis that minimally responds to oxygen therapy may be noted, and is indicative of probable methemoglobinemia.
   Eyes
See Skin.

First aid
 
   Ingestion
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.
   Inhalation
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.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes.
   Eyes
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.

Transport.
UN number
1627
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
MRN
 
Std. Transport #
4921871 4918752