Calcium chlorate

Structural formula
General
Surname	Calcium chlorate
other names	Calcium chlorate;
Molecular formula	Ca (ClO 3 ) 2
Brief description	colorless to yellowish odorless solid
External identifiers / databases
EC number	233-378-2
ECHA InfoCard	100.030.331
PubChem	24978
Wikidata	Q419721
properties
Molar mass	206.98 g mol −1
Physical state	firmly
density	2.711 g cm −3 (dihydrate)
Melting point	340 ° C
boiling point	decomposition
solubility	very easily soluble in water (1.78 kg l −1 at 20 ° C); soluble in ethanol;
safety instructions
GHS labeling of hazardous substances danger
H and P phrases	H: 272
	P: ?
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Calcium chlorate is a chemical compound from the group of chlorates .

Extraction and presentation

Calcium chlorate can be obtained by reacting chlorine into a hot slurry of calcium hydroxide .

{\ displaystyle \ mathrm {6 \ Ca (OH) _ {2} +6 \ Cl_ {2} \ longrightarrow Ca (ClO_ {3}) _ {2} +5 \ CaCl_ {2} +6 \ H_ {2} O}}

An electrochemical production of calcium chloride is also possible.

properties

Calcium chlorate is a hygroscopic, odorless, colorless to yellowish solid with a monoclinic crystal structure, which is very easily soluble in water. It decomposes from a temperature above 100 ° C, producing oxygen among other things . The dihydrate loses its water of crystallization at temperatures greater than 100 ° C.

use

Calcium chlorate is used in the manufacture of fireworks , herbicides, and in analog photography .

safety instructions

Calcium chlorate is a reactive, oxidizing solid. It does not burn itself, but reacts so violently with flammable substances that it can ignite some of them without any further ignition source and can significantly promote an existing fire. When mixed with flammable substances, there is a risk of explosion.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f Entry on calcium chlorate in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
^ Jean D'Ans, Ellen Lax: Pocket book for chemists and physicists. Springer, 1998, ISBN 978-3-540-60035-0 , p. 348 ( limited preview in Google book search).
↑ ^a ^b David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. CRC Press, 2009, ISBN 978-1-4200-9084-0 .
^ Karl-Heinz Lautenschläger, Werner Schröter, Andrea Wanninger: Taschenbuch der Chemie . 2005, ISBN 978-3-8171-1760-4 ( page 593 in the Google book search).
↑ ^a ^b Richard P. Pohanish: Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens . 2011, ISBN 978-1-4377-7869-4 ( page 525 in Google book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f Entry on calcium chlorate in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .

[2] Jean D'Ans, Ellen Lax: Pocket book for chemists and physicists. Springer, 1998, ISBN 978-3-540-60035-0 , p. 348 ( limited preview in Google book search).

[crc-3] David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. CRC Press, 2009, ISBN 978-1-4200-9084-0 .

[Taschenbuch-4] Karl-Heinz Lautenschläger, Werner Schröter, Andrea Wanninger: Taschenbuch der Chemie . 2005, ISBN 978-3-8171-1760-4 ( page 593 in the Google book search).

[Pohanish-5] Richard P. Pohanish: Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens . 2011, ISBN 978-1-4377-7869-4 ( page 525 in Google book search).