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Zinc sulfide

Occurrence and Uses Physical Properties Uses Production
Zinc sulfide
Zinc sulfide structure
CAS No.
1314-98-3
Chemical Name:
Zinc sulfide
Synonyms
irtran2;albalith;cleartran;Zinksulfid;SPHALERITE;sachtolith;zincblende;CIROM(TM)-2;Zinc sulfid;ZINK SULFIDE
CBNumber:
CB0733609
Molecular Formula:
SZn
Formula Weight:
97.46
MOL File:
1314-98-3.mol

Zinc sulfide Properties

Melting point:
1700°C
Boiling point:
1185°C (estimate)
Density 
4.1 g/mL at 25 °C (lit.)
form 
powder
Specific Gravity
4.1
color 
white to faint yellow
Water Solubility 
Soluble in acids. insoluble in water.
Merck 
14,10160
Solubility Product Constant (Ksp)
pKsp: α-ZnS 23.80;β-ZnS 21.60
Stability:
Stable. May react with water to give toxic hydrogen sulfide. Incompatible with acids, strong oxidizing agents. Air and moisture sensitive.
InChIKey
WGPCGCOKHWGKJJ-UHFFFAOYSA-N
CAS DataBase Reference
1314-98-3(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances
ZINC SULFIDE
FDA 21 CFR
175.105; 177.2600; 178.3297; 178.3570; 310.545
EWG's Food Scores
2
FDA UNII
KPS085631O
EPA Substance Registry System
Zinc sulfide (1314-98-3)
SAFETY
  • Risk and Safety Statements
Risk Statements  31
Safety Statements  50A
WGK Germany  3
RTECS  ZH5400000
TSCA  Yes
HS Code  28309085
NFPA 704
0
1 0

Zinc sulfide price More Price(29)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 14459 Zinc sulfide purum, 97% (from Zn) 1314-98-3 500g $116 2020-08-18 Buy
Sigma-Aldrich 14459 Zinc sulfide purum, 97% (from Zn) 1314-98-3 1kg $431 2020-08-18 Buy
Sigma-Aldrich NISTRM8556 NBS 123 (sulfur isotopes in sphalerite) NIST? RM 8556 1314-98-3 $765 2021-03-22 Buy
Alfa Aesar 013239 Zinc sulfide 99.99% (metals basis) 1314-98-3 250g $143 2021-03-22 Buy
Alfa Aesar 013239 Zinc sulfide 99.99% (metals basis) 1314-98-3 50g $40.6 2021-03-22 Buy

Zinc sulfide Chemical Properties,Uses,Production

Occurrence and Uses

Zinc sulfide occurs in nature in two crystalline forms, the minerals, wurtzite, and sphalerite. Sulfide ore is the principal zinc mineral.
Zinc sulfide
The most important use of Zinc sulfide is as a pigment. As lithopone, a mixture with barium sulfate, it forms a low gloss interior house paint. The pigment, “mineral white” is made by combining zinc sulfide with zinc oxide. Zinc sulfide is incorporated into phosphors to produce luminescence when irradiated with light. It is used in making luminous dials, x-ray and television screens, and fluorescent lights. Also, it is used in making white and opaque glass and as a base for color lakes (which consist of an organic pigment with an inorganic carrier).

Physical Properties

Zinc sulfide is white to gray-white or pale yellow powder. It exists in two crystalline forms, an alpha (wurtzite) and a beta (sphalerite). The wurtzite form has hexagonal crystal structure; refractive index 2.356; density 3.98 g/cm3; melts at 1,700°C; practically insoluble in water, about 6.9 mg/L; insoluble in alkalis; soluble in mineral acids. The sphalerite form arranges in cubic crystalline state; refractive index 2.368; density 4.102 g/cm3; changes to alpha form at 1,020°C; practically insoluble in water, 6.5 mg/L; soluble in mineral acids, insoluble in alkalis. When zinc sulfide contains water, it slowly oxidizes to sulfate on exposure to air.

Uses

Zinc sulfide is well known as an optical coating material for its high refractive index (~2.35 at 500 nm) and very broad transmittance range from 400 nm up to 14 µm. It allows for coatings in the IR and VIS range with good environmental durability, and can be evaporated rapidly from e-beam and resistance heated sources. It is used as a semiconductor and in photo optic applications.
Copperactivated zinc sulfides are the most widely used phosphors for safety purposes.
Zinc sulfide and white lead are sometimes used in coating materials because of their fungicidal properties and to neutralize acid to protect against corrosion.

Production

Zinc sulfide is mined from natural deposits and concentrated by various processes.
Also, zinc sulfide may be prepared in the laboratory by passing hydrogen sulfide through an aqueous solution of a soluble zinc salt, such as zinc chloride or zinc nitrate. The precipitate is filtered, washed, and dried.

Chemical Properties

Yellowish-white powder. ZnS exists in two crystalline forms, α (wurtzite) and β (sphalerite). Stable if kept dry. α: d 3.98. β: d 4.102, changes to α form at 1020C. Sublimes at 1180C. Soluble in acids; insoluble in water.

Uses

Pigment for paints, oilcloths, linoleum, leather, dental rubber, etc., especially in the form of lithopone; mixed with ZnO as "mineral white." Anhydrous zinc sulfide is used in x-ray screens and with a trace of a radium or mesothorium salt in luminous dials of watches; also television screens.

Uses

Zinc sulfide (ZnS) is used as a pigment and to make white glass, rubber, and plastics. It is an ingredient in pesticides, luminous paints, and X-ray and television screens.

Production Methods

Production is similar to that of lithopone. A Na2S solution is mixed with a zinc salt solution under precisely controlled conditions. The resulting zinc sulfide precipitate is calcined and processed to give the finished product. Na2S + ZnSO4 →ZnS + Na2SO4.

Definition

zinc sulphide: A yellow-whitewater-soluble solid, ZnS. It occursnaturally as sphalerite (see also zincblende) and wurtzite. The compoundsublimes at 1180°C. It is used as apigment and phosphor.

General Description

A yellowish-white powder in a liquid. Insoluble in water and denser than water. Primary hazard is to the environment. Immediate steps should be taken to limit spread to the environment. Easily penetrates the soil to contaminate groundwater and nearby waterways.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

These sulfides are rather inert, dissolve into acid, insoluble in water and alkalis.

Health Hazard

Inhalation of material may be harmful. Contact may cause burns to skin and eyes. Inhalation of Asbestos dust may have a damaging effect on the lungs. Fire may produce irritating, corrosive and/or toxic gases. Some liquids produce vapors that may cause dizziness or suffocation. Runoff from fire control may cause pollution.

Fire Hazard

Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot.

Industrial uses

Zinc sulfide(Sachtolith) is mainly used in plastics. Functional properties such as lightening and hiding power are criteria for the use of Sachtolith. It has proved to be very useful for coloring many thermoplasts. During the dispersion process it does not cause abrasion of metallic production machinery or adversely effect the polymer, even at high operating temperatures or during multistage processing. Even ultrahigh molecular mass thermoplasts can be colored without problems. In glass-fiber-reinforced plastics, the soft texture of Sachtolith prevents mechanical fiber damage during extrusion. Sachtolith is also used as a dry lubricant during the fabrication of these materials.
The low abrasiveness of Sachtolith prolongs the operating life of stamping tools used in the manufacture of industrial rubber articles. The lightfastness and ageing resistance of many elastomers are improved by using Sachtolith. It is also used as a dry lubricant for roller and plain bearings, and as a white pigment for greases and oils.

Toxicology

The use of zinc sulfide and barium sulfate in contact with foods is permitted by the FDA (United States) and in most European countries. Some restrictions apply in France, Italy, the United Kingdom, and Czechoslovakia.
Soluble zinc is toxic in large amounts, but the human body requires small quantities (10–15 mg d−1) for metabolism. Zinc sulfide is harmless in the human due to its low solubility. The acid concentration in the stomach and the rate of dissolution following ingestion are not sufficient to produce physiologically significant quantities of soluble zinc. LD50 values in the rat exceed 15 g kg−1. No cases of poisoning or chronic damage to health have been observed in the manufacture of zinc sulfide pigments.

Zinc sulfide Preparation Products And Raw materials

Raw materials

Preparation Products


Zinc sulfide Suppliers

Global( 214)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23035 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8882 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29961 58
City Chemical LLC
2039322489
203.937.8400 sales@citychemical.com United States 97 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
sales3@crovellbio.com China 5429 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 37282 58
Zhuozhou Wenxi import and Export Co., Ltd
+8613111626072 (WhatsApp)
Wechat: +8613111626072 Wickr me: waynehu zzwenxi@126.com CHINA 13187 58
Antai Fine Chemical Technology Co.,Limited
18503026267
info@antaichem.com CHINA 9664 58
Career Henan Chemica Co
13203830695 0371-86658258
0371-86658258 Laboratory@coreychem.com CHINA 30281 58

View Lastest Price from Zinc sulfide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-08-31 Zinc sulfide
1314-98-3
US $10.00 / KG 1KG 99.99% 20 tons/month Wuhan Monad Medicine Tech Co.,LTD
2021-08-13 Zinc sulfide
1314-98-3
US $10.00 / KG 100KG 99% 100 mt Hebei Guanlang Biotechnology Co., Ltd.
2021-08-12 ZINC SULFIDE
1314-98-3
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

Zinc sulfide Spectrum


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