CALCIUM SULFIDE
- Product Name
- CALCIUM SULFIDE
- CAS No.
- 20548-54-3
- Chemical Name
- CALCIUM SULFIDE
- Synonyms
- Baumol;Oldhamite;C.I. 77245;thioxocalcium;CALCIUM SULFIDE;Pigment White 9;Calcium-sulphide-;calciumsulfide(cas);Calcium monosulfide;C.I. Pigment White 9
- CBNumber
- CB3391370
- Molecular Formula
- CaHS
- Formula Weight
- 73.15
- MOL File
- 20548-54-3.mol
CALCIUM SULFIDE Property
- Melting point:
- 2000 °C
- Density
- 2.6
- refractive index
- 2.12
- solubility
- slightly soluble in H2O; insoluble in ethanol
- form
- Powder
- Specific Gravity
- 2.5
- color
- White
- Water Solubility
- Slightly soluble in water. Insoluble in alcohol.
- Sensitive
- Moisture Sensitive
- Crystal Structure
- NaCl type
- crystal system
- Cube
- Merck
- 14,1707
- Space group
- Fm3m
- Lattice constant
a/nm b/nm c/nm α/o β/o γ/o V/nm3 0.56908 0.56908 0.56908 90 90 90 0.1843 - CAS DataBase Reference
- 20548-54-3(CAS DataBase Reference)
- EPA Substance Registry System
- Calcium sulfide (CaS) (20548-54-3)
Safety
- Hazard Codes
- Xi,N
- Risk Statements
- 31-36/37/38-50
- Safety Statements
- 28-61
- RIDADR
- UN 3179 4.1/PG 2
- WGK Germany
- 2
- TSCA
- Yes
- HazardClass
- 4.3
- PackingGroup
- III
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H228Flammable solid
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H400Very toxic to aquatic life
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P273Avoid release to the environment.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 409553
- Product name
- Calcium sulfide
- Purity
- 325mesh, ≥99.9% trace metals basis
- Packaging
- 10g
- Price
- $782
- Updated
- 2023/01/07
- Product number
- 013121
- Product name
- Calcium sulfide, 99.9% (metals basis excluding Sr), Sr typically 500 ppm
- Packaging
- 5g
- Price
- $65.4
- Updated
- 2024/03/01
- Product number
- 013121
- Product name
- Calcium sulfide, 99.9% (metals basis excluding Sr), Sr typically 500 ppm
- Packaging
- 25g
- Price
- $258
- Updated
- 2023/06/20
- Product number
- 93-2047
- Product name
- Calcium sulfide (99.9+%-Ca)
- Packaging
- 10g
- Price
- $78
- Updated
- 2024/03/01
- Product number
- 93-2047
- Product name
- Calcium sulfide (99.9+%-Ca)
- Packaging
- 50g
- Price
- $316
- Updated
- 2024/03/01
CALCIUM SULFIDE Chemical Properties,Usage,Production
Chemical Properties
CALCIUM SULFIDE is OFF-WHITE POWDER
Physical properties
Calcium sulfide is slightly soluble in water but insoluble in alcohol. It reacts with acids, producing hydrogen sulfide gas. Calcium sulfide is pale yellow to light gray with a bitter taste. It is hygroscopic, producing an odor of H2S in moist air.
Occurrence
Calcium sulfide occurs in nature as the mineral oldhamite. It has several applications. The ‘luminous’ calcium sulfide is used in phosphors, luminous paints and varnishes. Calcium sulfide also is used as an additive to lubri cants; and as a flotation agent in ore extraction.
Uses
Calcium sulfide is used in phosphors, lubricant additives and luminous paints. It reacts with elemental sulfur to give a lime-sulfur. Further, it is used in ore dressing and flotation agent. In addition to this, it is used as a depilatory in the tanning industry and in cosmetics.
Uses
Calcium sulfide may be used to remove heavy metals from wastewater.
Uses
CALCIUM SULFIDE is used in electron emitters. Luminous CaS used for making luminous paints or varnishes.
Preparation
Calcium sulfide can be
prepared by the direct reaction of the elements, calcined
in an inert atmosphere, at a 1:1.05 molecular ratio:
Ca＋S＋heat→CaS
This white material crystallizes in a cubic structurelike
rock salt and the bonding is highly ionic. This is
consistent with its description as an ionic solid.
CaS can also be produced by the “carbothermic
reduction” of calcium sulfate, which entails the conversion
of carbon, usually as charcoal, to CO2:
CaSO4＋ 2C→CaS＋ 2CO2
This can react further:
3CaSO4＋ CaS→4CaO＋ 4SO2
Thus, this type of preparation cannot be used to
prepare a pure CaS salt.
Calcium sulfide is available commercially as the pure
sulfide as well as the polysulfide due to its extensive
usage in the past as an insecticide both agriculturally
and in home gardens.
General Description
Crystal structure of CaS is cubic. Electrical conductivity of calcium sufide in the temperature range of 650oC-1000oC was studied in great detail. It was concluded that CaS could be used as a potential electrolyte in a sulfur concentration cell.2
reaction suitability
reagent type: catalyst
core: calcium
CALCIUM SULFIDE Preparation Products And Raw materials
Raw materials
Preparation Products
CALCIUM SULFIDE Suppliers
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View Lastest Price from CALCIUM SULFIDE manufacturers
- Product
- CALCIUM SULFIDE 20548-54-3
- Price
- US $6.00/KG
- Min. Order
- 25KG
- Purity
- More than 99%
- Supply Ability
- 2000KG/Month
- Release date
- 2024-03-28
- Product
- CALCIUM SULFIDE 20548-54-3
- Price
- US $6.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 2000KG/Month
- Release date
- 2024-08-08
- Product
- CALCIUM SULFIDE 20548-54-3
- Price
- US $6.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 20TONS
- Release date
- 2024-05-10