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Mercury(II) sulfide

Physical Properties Preparation Reactions
Mercury(II) sulfide
Mercury(II) sulfide structure
CAS No.
1344-48-5
Chemical Name:
Mercury(II) sulfide
Synonyms
almaden;CINNABAR;Liver ore;c.i.77766;vermilion;vermillion;redcinnabar;pigmentred106;Mercurysulfide;mercurysulphide
CBNumber:
CB6173856
Molecular Formula:
HgS
Formula Weight:
232.65
MOL File:
1344-48-5.mol

Mercury(II) sulfide Properties

Melting point:
583.5 °C(lit.)
Boiling point:
584°C
Density 
8.1 g/mL at 25 °C
form 
Powder
color 
red
Water Solubility 
Soluble in water (0.00001 g/L).
Crystal Structure
Cubic, Sphalerite Structure - Space Group F(-4)3m
Merck 
14,5888
Solubility Product Constant (Ksp)
pKsp: 52.4
Stability:
Stable.
CAS DataBase Reference
1344-48-5(CAS DataBase Reference)
FDA 21 CFR
310.545
FDA UNII
ZI0T668SF1
EPA Substance Registry System
Mercury sulfide (HgS) (1344-48-5)

Mechanical Properties

Hardness, Mohs
3.0
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H317
Precautionary statements  P280-P261-P280g-P302+P352a-P321-P333+P313-P501a
Hazard Codes  N-T,Xi
Risk Statements  50/53-36-33-23/24/25-43-31
Safety Statements  61-60-45-36/37/39-28A-26-36/37
RIDADR  2025
WGK Germany  -
RTECS  OX0720000
8
TSCA  Yes
HazardClass  6.1
PackingGroup  II
HS Code  28521000

Mercury(II) sulfide price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 243566 Mercury(II) sulfide red 99% 1344-48-5 50g $92.6 2021-03-22 Buy
Alfa Aesar 012992 Mercury(II) sulfide, black, Puratronic?, 99.999% (metals basis) 1344-48-5 5g $175 2021-03-22 Buy
Alfa Aesar 012992 Mercury(II) sulfide, black, Puratronic?, 99.999% (metals basis) 1344-48-5 25g $640 2021-03-22 Buy
Alfa Aesar 013483 Mercury(II) sulfide, black 1344-48-5 500g $832 2020-06-24 Buy
Alfa Aesar 013482 Mercury(II) sulfide, red 1344-48-5 500g $832 2020-06-24 Buy

Mercury(II) sulfide Chemical Properties,Uses,Production

Physical Properties

Mercury(II) sulfide has several modifications, the only two stable allotropic forms are:
1. the red hexagonal form known as cinnabar (alpha form), and 2. the black cubic modification (beta form).
Cinnabar is a red crystalline or powdery substance; hexagonal crystal system; refractive index 2.854; density 8.10 g/cm3; sublimes at 583.5°C; color changes to brown at 250°C and converts to black sulfide at 386°C; reverts to red color on cooling; insoluble in water, alcohol and nitric acid; soluble in aqua regia and solutions of alkali metal sulfides; decomposed by hot concentrated sulfuric acid.
Black sulfide is a black amorphous powder or crystalline substance (beta form); cubic structure; metastable at ordinary temperatures; converts to red sulfide by sublimation at ordinary pressure; density 7.73 g/cm3; melts at 583.5°C; insoluble in water, alcohol and nitric acid; soluble in aqua regia, alkalies, and solutions of alkali metal sulfides.

Preparation

Red sulfide occurs natively and is mined from mineral cinnabar. Also it can be prepared by heating mercury with a solution of potassium pentasulfide, producing a scarlet cinnabar:
Hg + K2S5 → HgS + K2S4
The red sulfide also may be made from black sulfide by heating in a concentrated solution of alkaline polysulfide. The shade of pigment varies with temperature, reaction time, and concentration of the black sulfide.
Alternatively, vermilion may be made by grinding sodium sulfide with sulfur and slowly adding mercury. The shades are not bright when prepared at 0°C.
The black mercury(II) sulfide is prepared usually by precipitation from an aqueous solution of mercury(II) salt with hydrogen sulfide. Thus, when H2S is passed into a solution of HgCl2, a pale yellow precipitate of composition HgCl2•2HgS forms. This converts to amorphous black HgS on further treatment with H2S.
The black sulfide may also be made by other methods such as adding sodium thiosulfate, Na2S2O3 in excess to a dilute solution of sodium mercurichloride, Na2HgCl4 and treating mercury with molten or powdered sulfur.

Reactions

When heated in a current of air, mercury(II) sulfide is converted into metallic mercury and sulfur dioxide:
HgS + O2 → Hg + SO2
Similar reduction to metallic mercury occurs when the sulfide is heated with several metals or metal oxides:
HgS + Fe → Hg + FeS
4HgS + 4CaO → 4Hg + 3CaS + CaSO4
Mercury(II) sulfide dissolves in concentrated solutions of alkali or alkalineearth metal sulfides forming thiosalts, such as Na2[HgS2]•xH2O. Such thiosalts are stable in solution only when alkaline hydroxides are present in excess. These salts also are obtained as bright and deliquescent needles when HgS is heated with sulfur and alkaline hydroxides.

Chemical Properties

Fine, bright-scarlet powder.Insoluble in water and alcohol.

Uses

For coloring plastics, sealing wax, and with FeSO4 for marking linen; manufacture of fancy colored papers; as pigment.

Uses

Mercuric sulfide (HgS) is a fine, very brilliant scarlet powder that is deadly if ingested. Also known as the mercury ore cinnabar and metacinnabar, it is used as a pigment in the manufacture of paints.

Definition

cinnabar: A bright red mineralform of mercury(II) sulphide, HgS,crystallizing in the hexagonal system;the principal ore of mercury. Itis deposited in veins and impregnationsnear recent volcanic rocks andhot springs. The chief sources includeSpain, Italy, and Yugoslavia.

Air & Water Reactions

Readily oxidized as to be pyrophoric in air [Bretherick 1979. p. 120].

Reactivity Profile

Inorganic reducing agents, such as MERCURY(II) SULFIDE, react with oxidizing agents to generate heat and products that may be flammable, combustible, or otherwise reactive.

Hazard

Highly toxic by ingestion, inhalation, and skin absorption.

Health Hazard

Acute poisoning can result from inhaling dust concentrations of 1.2-8.5 mg/m 3 in air; symptoms include pain and tightness in chest, coughing, and difficulty in breathing. If ingested, toxicity depends on release of t he Hg ++ ion; chronic mercury poisoning can cause kidney, mental, and nervous disturbances. Dust irritates eyes and frequently causes allergic dermatitis; absorption through skin can cause systemic poisoning.

Mercury(II) sulfide Preparation Products And Raw materials

Raw materials

Preparation Products


Mercury(II) sulfide Suppliers

Global( 86)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
career henan chemical co
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sales@coreychem.com CHINA 29961 58
Hubei Jusheng Technology Co.,Ltd.
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027-59599243 linda@hubeijusheng.com CHINA 28229 58
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View Lastest Price from Mercury(II) sulfide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-07-10 MERCURY(II) SULFIDE
1344-48-5
US $1.00 / KG 1KG 99% 100kg career henan chemical co

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