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| CAS No.: | 591-89-9 |
|---|---|
| Name: | MERCURIC POTASSIUM CYANIDE |
| Molecular Structure: | |
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| Formula: | C4Hg N4 . 2 K |
| Molecular Weight: | 382.87 |
| Synonyms: | Mercurate(2-),tetracyano-, dipotassium (8CI); Mercurate(2-), tetrakis(cyano-C)-, dipotassium,(T-4)-; Potassium cyanomercurate(II) (6CI); Potassium tetracyanomercurate(II)(7CI); Dipotassium tetracyanomercurate; Dipotassium tetracyanomercurate(2-);Mercuric potassium cyanide; Mercury potassium cyanide (HgK2(CN)4); Potassiumtetracyanomercurate (K2Hg(CN)4) |
| Density: | g/cm3 |
| Boiling Point: | °Cat760mmHg |
| Flash Point: | °C |
| Solubility: | soluble H2O [MER06] |
| Hazard Symbols: | Highly toxic by ingestion, inhalation, and skin absorption. TLV: TWA 0.1 mg(Hg)/m3. |
| Safety: | A poison. May explode on contact with ammonia. When heated to decomposition it emits very toxic fumes of NOx, Hg, K2O, and CN−. See also MERCURY COMPOUNDS, INORGANIC; MERCURY COMPOUNDS, ORGANIC and CYANIDE. |
| PSA: | 95.16000 |
| LogP: | 0.06462 |
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Chemistry
IUPAC Name: Dipotassium tetracyanomercury(2-)
Synonyms: Mercurate(2-), tetracyano-, dipotassium (8CI) ; Dipotassium tetracyanomercurate ; Dipotassium tetracyanomercurate(2-) ; Mercurate (2-), tetrakis (cyano-C)-, dipotassium, (T-4)- (9CI)
CAS NO: 591-89-9
Molecular Formula of Potassium tetracyanomercurate(II) (CAS NO.591-89-9) : C4HgK2N4
Molecular Weight of Potassium tetracyanomercurate(II) (CAS NO.591-89-9) : 382.86
Molecular Structure of Potassium tetracyanomercurate(II) (CAS NO.591-89-9) :.png)
EINECS: 209-735-3
Appearance:A colorless crystalline solid
Water solubility:Soluble in water
Uses
Potassium tetracyanomercurate(II) (CAS NO.591-89-9) is used as a mirror silvering agents and chemical reagents.
Production
Mercuric cyanide and Potassium cyanide ,crystallization in the solution then is derived.
Consensus Reports
Cyanide and its compounds, as well as mercury and its compounds, are on the Community Right-To-Know List.
Safety Profile
A poison. May explode on contact with ammonia. When heated to decomposition it emits very toxic fumes of NOx, Hg, K2O, and CN−. See also MERCURY COMPOUNDS, INORGANIC; MERCURY COMPOUNDS, ORGANIC and CYANIDE.
RIDADR 1626
HazardClass 6.1(a)
PackingGroup I
Standards and Recommendations
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.
DFG MAK: Confirmed Animal Carcinogen with Unknown Relevance to Humans
NIOSH REL: (Mercury, Aryl and Inorganic) CL 0.1 mg/m3 (skin)
DOT Classification: 6.1; Label: Poison
Specification
1.General Description: Denser than water. Toxic by inhalation and ingestion. Produces toxic oxides of nitrogen during combustion.
2.Air & Water: Rapidly decomposes in presence of acids with generation of hydrogen cyanide, a flammable poison gas.
3.Reactivity Profile: Mercuric potassium cyanideis rapidly decomposed by acids to evolve hydrogen cyanide, a flammable poisonous gas. May tend to explosive instability. Incompatible with strong oxidizing agents. Fusion with metal chlorates, perchlorates, nitrates or nitrites can cause violent explosions.Contact with ammonia may be explosive.
4.Health Hazard: TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
5.Fire Hazard :Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Vapors may accumulate in confined areas (basement, tanks, hopper/tank cars etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases and runoff. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.