IUPAC Name: Mercury(2+); oxidoazaniumylidynemethane
Synonyms: Fulminate of mercury ; Fulminate of mercury (dry) [Forbidden] ; Fulminate of mercury, dry ; Fulminate of mercury, wet ; Fulminating mercury [Forbidden] ; Fulminic acid, mercury(2+) salt
CAS NO: 628-86-4
Molecular Formula of Mercury(II) fulminate (CAS NO.628-86-4) : C₂HgN₂O₂
Molecular Weight of Mercury(II) fulminate (CAS NO.628-86-4) : 284.6236
Molecular Structure of Mercury(II) fulminate (CAS NO.628-86-4) :
EINECS: 211-057-8
Mol File: 628-86-4.mol

Mercury and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.

An explosive sensitive to flame, heat, impact, friction, intense radiation, or contact with sulfuric acid. Self-explodes. Dangerously flammable; should be kept moist until used. Incompatible with sulfuric acid. When heated to decomposition it emits very toxic fumes of Hg and NO_x. See also MERCURY COMPOUNDS, INORGANIC; MERCURY COMPOUNDS, ORGANIC and FULMINATES.
Hazard CodesE,T,N
Risk Statements 3-23/24/25-33-50/53
R3:Extreme risk of explosion by shock, friction, fire or other sources of ignition. 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed. 
R33:Danger of cumulative effects. 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements 3-35-45-60-61
S3:Keep in a cool place. 
S35:This material and its container must be disposed of in a safe way.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S60:This material and its container must be disposed of as hazardous waste. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR 0135
HazardClass 1.1A
PackingGroup II

OSHA PEL: CL 0.1 mg(Hg)/m³ (skin)
ACGIH TLV: TWA 0.1 mg(Hg)/m³ (skin); BEI: 35 µg/g creatinine total inorganic mercury in urine preshift; 15 µg/g creatinine total inorganic mercury in blood at end of shift at end of workweek.
NIOSH REL: (Mercury, Organo) TWA 0.01 mg/m³; STEL 0.03 mg/m³ (skin)
DOT Classification:  Forbidden; DOT Class: EXPLOSIVE 1.1A; Label: EXPLOSIVE 1.1A (UN 0135)

1.General Description: A slurry or wet mass of white crystals. Contains at least 20% water or water-ethyl alcohol mixture. May explode from shock, heat, flame, or friction when dry. May explode under prolonged exposure to heat. Primary hazard is blast of an instantaneous explosion, not flying projectiles or fragments. A widely used initiating detonator for high explosives.
3.Reactivity Profile: Mercury(II) fulminate is incompatible with acetylene, ammonia, chlorine dioxide, azides, calcium (amalgam formation), sodium carbide, lithium, rubidium, copper . Contact with sulfuric acid causes explosion,  Aqueous ammonia and Hg react to form an explosive solid, likely a fulminate.
4.Health Hazard: Fire may produce irritating, corrosive and/or toxic gases.
4.Fire Hazard: May explode and throw fragments 1600 meters (1 mile) or more if fire reaches cargo.