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MERCURIC THIOCYANATE

MERCURIC THIOCYANATE Structure
MERCURIC THIOCYANATE
  • CAS No.592-85-8
  • Chemical Name:MERCURIC THIOCYANATE
  • Synonyms:MERCURY RHODANIDE;mercurythiocyanate;Mercury(II) thiocyan;MERCURY SULFOCYANIDE;MERCURIC THIOCYANATE;mercuricsulfocyanide;mercurydithiocyanate;Mercury sulfocyanate;MERCURIC SULFOCYANATE;MercuricThiocyanateGr
  • CBNumber:CB0111438
  • Molecular Formula:C2HgN2S2
  • Formula Weight:316.75
  • MOL File:592-85-8.mol
MERCURIC THIOCYANATE Property
  • Melting point: :165 °C (dec.)(lit.)
  • Density  :3.71 g/mL at 25 °C(lit.)
  • Flash point: :120 °C
  • storage temp.  :Store at RT.
  • form  :Powder
  • color  :White to pale yellow
  • Water Solubility  :Soluble in dilute hydrochloric acid, potassium cyanide and ammonia. Slightly soluble in alcohol and ether. Insoluble in water.
  • Sensitive  :Hygroscopic
  • Merck  :14,5890
  • BRN  :3561344
  • Stability: :Stable. Incompatible with strong acids. May be light or moisture sensitive.
  • CAS DataBase Reference :592-85-8(CAS DataBase Reference)
Safety
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordDanger
  • Hazard statements
  • H300:Fatal if swallowed
  • H311:Toxic in contact with skin
  • H330:Fatal if inhaled
  • H373:May cause damage to organs through prolonged or repeated exposure
  • H400:Very toxic to aquatic life
  • H410:Very toxic to aquatic life with long lasting effects
  • Precautionary statements
  • P320:Specific treatment is urgent (see … on this label).
  • P330:Rinse mouth.
  • P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
  • P405:Store locked up.

MERCURIC THIOCYANATE Chemical Properties,Usage,Production

  • Chemical Properties Mercuric thiocyanate is an inorganic chemical substance. It is a stable solid at room temperature, and depending upon the purity, it appears as odourless white crystalline powder or grey. It is insoluble in water and denser than water and sinks in water. On decomposition, mercuric thiocyanate releases hazardous substances such as cyanide vapours, vapours of mercury, oxides of nitrogen (NO, NO2), and oxides of sulphur (SO2, SO3). Mercury thiocyanate has limited uses in chemical synthesis.
  • Chemical Properties Mercury thiocyanate is a white, odorless powder.
  • Uses For Pharaoh's serpents (fireworks); intensifier in photography.
  • Air & Water Reactions Insoluble in water.
  • Reactivity Profile MERCURIC THIOCYANATE decomposes into its elements at about 165°C. Burns readily in air to generate a coil of cohesive ash resembling a serpent (hence used in a firework: Pharaoh's serpents). Swells up to many times its original volume if heated [USCG, 1999]. Soluble in dilute hydrochloric acid [Merck]. Incompatible with strong oxidizing agents.
  • Hazard Highly toxic by ingestion, inhalation, and skin absorption.
  • Health Hazard Mercuric thiocyanate causes severe eye and skin irritation with possible burns and causes digestive and respiratory tract irritation with possible burns. It may impair fertility, may cause harm to the unborn child, is harmful if inhaled, may cause allergic skin reaction, may cause kidney damage, may cause CNS effects, is light sensitive, and is a severe marine pollutant. Contact with acids liberates very toxic gas. The target organs include kidneys, CNS, reproductive system, eyes, and skin.
  • Safety Profile A poison by ingestion and intraperitoneal routes. Moderately toxic by skin contact. Thermally unstable and decomposition may be vigorous. When heated to decomposition it emits very toxic fumes of Hg, NOx, SOx, and CN-. See also MERCURY COMPOUNDS and CYANATES.
  • Potential Exposure Mercury thiocyanate is used in photography and fireworks.
  • First aid If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.
    Antidotes and Special Procedures for medical personnel: The drug NAP has been used to treat mercury poisoning, with mixed succes
  • Shipping UN1646 Mercury thiocyanate, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
  • Purification Methods Recrystallise it from H2O, and it can give various crystal forms depending on conditions. Its solubility in H2O is 0.069% at 25o, but is more soluble at higher temperatures. It decomposes to Hg above 165o. Poisonous. [Mason & Forgeng J Phys Chem 35 1121 1931, Birckenbach & Kolb Chem Ber 68 919 1935.]
  • Incompatibilities Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Mercury thiocyanate is sensitive to heat; expands to many times its original volume and then decomposes at freezing/melting point forming toxic fumes of sulfur oxides, mercury cyanide, and nitrogen oxides. Contact with acid or acid fumes causes release of toxic mercury and cyanide vapors. Incompatible with chlorine, reducing agents such as hydrides, sulfides
  • Waste Disposal Small amounts may be destroyed by alkaline hydrolysis. Admixture with alkali can be followed by soil burial. Larger quantities can be disposed of by incineration in admixture with acetone or xylene and using effluent gas scrubbing. Do not reuse empty container; proper disposal required.
MERCURIC THIOCYANATE Preparation Products And Raw materials
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Preparation Products
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592-85-8, MERCURIC THIOCYANATERelated Search:
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  • CHLORIDE COLOUR REAGENT
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  • Inorganics
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  • CHLORIDE COLOR REAGENT MERCURIC THIOCYANATE 0.06% SOLUTION
  • MERCURIC THIOCYANATE REAGENT
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  • MERCURICTHIOCYANATE,POWDER,TECHNICAL
  • HgSCN2