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592-85-8

Supplier Related Products Identification Chemical Properties Safety Data Raw materials And Preparation Products Hazard Information Material Safety Data Sheet(MSDS) Spectrum Detail Well-known Reagent Company Product Information

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Identification

Name
MERCURIC THIOCYANATE
CAS
592-85-8
Synonyms
CHLORIDE COLOR REAGENT
CHLORIDE COLOUR REAGENT
MERCURIC SULFOCYANATE
MERCURIC THIOCYANATE
MERCURIC THIOCYANATE STOCK
MERCURY(+2)THIOCYANATE
MERCURY(II) THIOCYANATE
MERCURY RHODANIDE
MERCURY SULFOCYANIDE
bis(thiocyanato)-mercur
mercuricsulfocyanide
mercury,bis(thiocyanate)
mercurydithiocyanate
mercurydithiocyanate[qr]
mercurythiocyanate
mercurythiocyanatehg(scn)2
Thiocyanicacid,mercury(2+)salt
thiocyanicacid,mercury(2+)salt[qr]
thiocyanicacid,mercury(2++)salt
thiocyanicacid,mercury(ii)salt
EINECS(EC#)
209-773-0
Molecular Formula
C2HgN2S2
MDL Number
MFCD00011039
Molecular Weight
316.75
MOL File
592-85-8.mol

Chemical Properties

Appearance
Mercury thiocyanate is a white, odorless powder.
Appearance
White solid
mp 
165 °C (dec.)(lit.)

density 
3.71 g/mL at 25 °C(lit.)

Fp 
120 °C
storage temp. 
Store at RT.
Stability:
Stable. Incompatible with strong acids. May be light or moisture sensitive.
Sensitive 
Hygroscopic
Merck 
14,5890
CAS DataBase Reference
592-85-8(CAS DataBase Reference)

Safety Data

Hazard Codes 
T+,N
Risk Statements 
R26/27/28:Very Toxic by inhalation, in contact with skin and if swallowed .
R32:Contact with acids liberates very toxic gas.
R33:Danger of cumulative effects.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
Safety Statements 
S13:Keep away from food, drink and animal feeding stuffs .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
RIDADR 
UN 1646 6.1/PG 2

WGK Germany 
3

RTECS 
XL1550000


8
HazardClass 
6.1
PackingGroup 
II
HS Code 
28521000
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.

Raw materials And Preparation Products

Raw materials
Ammonium thiocyanate

Hazard Information

General Description
An odorless white crystalline powder. Insoluble in water and denser than water. Hence sinks in water. Very toxic by inhalation and ingestion.
Reactivity Profile
MERCURY THIOCYANATE(592-85-8) 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.
Air & Water Reactions
Insoluble in water.
Hazard
Highly toxic by ingestion, inhalation, and skin absorption.
Health Hazard
INHALATION: Acute poisoning symptoms are: Tightness in the chest, difficulty in breathing, coughing, and pain in the chest. EYES: Ulceration of conjunctiva and cornea. SKIN: Irritation, sensitization dermatitis. INGESTION: Necrosis, pain, vomiting, severe purging. Patient may die within a few hours from peripheral vascular collapse.
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.
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.

Material Safety Data Sheet(MSDS)

Spectrum Detail

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