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Calcium chlorate

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Calcium chlorate Basic information

Product Name:
Calcium chlorate
CAS:
10137-74-3
MF:
CaCl2O6
MW:
206.9804
EINECS:
233-378-2
Mol File:
10137-74-3.mol
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Calcium chlorate Chemical Properties

Melting point:
340°C
Density 
2.71 g/cm3
form 
white crystals
CAS DataBase Reference
10137-74-3
EPA Substance Registry System
Calcium chlorate (10137-74-3)
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Safety Information

RIDADR 
1452
HazardClass 
5.1
PackingGroup 
II
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Calcium chlorate Usage And Synthesis

Chemical Properties

Calcium chlorate forms white to yellow deliquescent crystals.

Physical properties

Calcium chlorate Ca(ClO3)2 is the chemical compound formed from calcium and the chlorate anion. Like KClO3, it is a strong oxidizer and can be used in pyrotechnic formulations. Its molecular weight is 206.98 g/mol. Its solubility in water is 209 g/100 ml at 20°C. It is slightly soluble in alcohol. Calcium chlorate has a melting point of 325°C and its density is 2.71 g/cm3. Its CAS number is 10017-74-3. A dihydrate, Ca(ClO3)2·2H2O, forms as white monoclinic crystals, which are decomposed by heating above 150°C. No structural data is available.

Uses

Photography, pyrotechnics, dusting powder to kill poison ivy, herbicide.

Preparation

Calcium chlorate can be prepared by the Liebig process which is also used to prepare the alkali chlorates.
In Liebig’s process, chlorine is passed into milk of lime, at or above a temperature of 1000°C, the apparent reaction being:
6Ca(OH)2+ 6Cl

General Description

A white crystalline solid. Calcium chlorate forms a very flammable mixture with combustible materials and this mixture may be explosive if the combustible material is finely divided. The mixture can be ignited by friction. Contact with strong sulfuric acid can cause fires or explosions. When mixed with ammonium salts, spontaneous decomposition and ignition may result. Prolonged exposure of the material to fire or heat can result in an explosion. Calcium chlorate is used in photography, in pyrotechnics, and as a herbicide.

Air & Water Reactions

Water soluble.

Reactivity Profile

An oxidizing agent. Liberates explosive chlorine dioxide gas in the presence of strong acid. Heating a moist mixture with a dibasic organic acid liberates chlorine dioxide and carbon dioxide. Mixtures with ammonium salts, powdered metals, silicon, sulfur, or sulfides are readily ignited and potentially explosive [Bretherick 1979 p. 806]. A combination with finely divided aluminum can explode by heat, percussion, or friction [Mellor 2:310 1946-47].

Hazard

Oxidizer, dangerous fire risk, forms explo- sive mixtures with combustible materials.

Health Hazard

Inhalation of dust causes irritation of upper respiratory system. Dust irritates eyes and skin. Ingestion causes abdominal pain, nausea, vomiting, diarrhea, pallor, shortness of breath, unconsciousness.

Fire Hazard

Behavior in Fire: When involved in a fire, may cause an explosion. Irritating gases may be generated when heated.

Safety Profile

Moderately toxic by ingestion and intraperitoneal routes. A powerful oxidant. Incompatible with Al, As, C, Cu, charcoal, MnO2, metal sulfides, S, dibasic organic acids, organic matter, P. When heated to decomposition it emits toxic fumes of Cl-. See also CHLORATES for fire, disaster, and explosion hazards.

Potential Exposure

Calcium chlorate is used in making fireworks, herbicides (weed killers) and in photography. Incompatibilities: A strong oxidizer. Reacts, possibly with risk of fire and explosion, with acids (especially organic acids), reducing agents; aluminum, arsenic, chemically active metals; combustible materials; ammonium compounds; charcoal, copper, cyanides; manganese dioxide, metal sulfides; phosphorus, sulfur

Shipping

UN1452 Calcium chlorate, Hazard Class: 5.1; Labels: 5.1-Oxidizer. UN2429 Calcium chlorate, aqueous solution, Hazard Class: 5.1; Labels: 5.1-Oxidizer

Incompatibilities

Calcium chlorate is used in making fireworks, herbicides (weed killers) and in photography. Incompatibilities: A strong oxidizer. Reacts, possibly with risk of fire and explosion, with acids (especially organic acids), reducing agents; aluminum, arsenic, chemically active metals; combustible materials; ammonium compounds; charcoal, copper, cyanides; manganese dioxide, metal sulfides; phosphorus, sulfur

Waste Disposal

For barium chlorate, the UN recommends using a vast volume of a reducing agent (bisulfites, ferrous salts or hypo) followed by neutralization and flushing to the sewer with abundant water. This should be applicable here as well.

Calcium chlorate Preparation Products And Raw materials

Preparation Products

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Calcium chlorateSupplierMore

HENAN BON INDUSTRIAL CO.,LTD
Tel:
0371-55170695
Email:
info@hnbon.com
Hubei xin bonus chemical co. LTD
Tel:
86-13657291602
Email:
linda@hubeijusheng.com
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