CALCIUM CHLORIDE

PRODUCT IDENTIFICATION
CAS NO. 10043-52-4,
10035-04-8 (Dihydrate)
7774-34-7 (Hexahydrate)

CALCIUM CHLORIDE 
EINECS NO. 233-140-8
FORMULA CaCl2
MOL WT. 110.98

H.S.CODE

 2827.20
TOXICITY Oral rat LD50: 1000 mg/kg
SYNONYMS Calcosan; Calcium Dichloride; complexometric;
Calplus; Caltac; Dowflake; Liquidow; Peladow; Snomelt; Superflake Anhydrous; Cloruro de calcio (Spanish); Chlorure de calcium (French);
DERIVATION  

CLASSIFICATION

 

GENERAL DESCRIPTION

Calcium Chloride is a white deliquescent powder which is soluble in water and ethanol, with melting point at 782 C, boiling point at 1600 C and specific gravity of 2.15. Mono, Di and Hexahydrate forms are existing. But hexahydrate form loses 4H2O at room temperature. It is formed as a byproduct of the Solvay process, also called ammonia-soda process to make sodium carbonate from calcium carbonate and sodium chloride.  It is also prepared by dissolving calcium carbonate or calcium oxide in hydrochloric acid. It is used chiefly for dust control on unpaved roads and as a roadway deicer. Other uses are waste water treatment, brine refrigeration systems, tire weighting, concrete acceleration and as a calcium source in chemical processing.

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE White to off white solid
MELTING POINT 782 C
BOILING POINT 1600 C
SPECIFIC GRAVITY 2.15
SOLUBILITY IN WATER Freely soluble
pH 8 - 9 (Aqueous solution)
VAPOR DENSITY  
NFPA RATINGS Health: 1 Flammability: 0 Reactivity: 1

REFRACTIVE INDEX

 
FLASH POINT Not considered to be a fire
STABILITY Stable under ordinary conditions

APPLICATIONS
  • Deicing
  • Road stabilization and dust control
  • Industrial processing
  • Oil and gas well fluids
  • Concrete
  • Tire ballastf
  • Food-processing industry
SALES SPECIFICATION
DIHYDRATE

APPEARANCE

White flake

CaCl2

74.0% min
NaCl 5.0% max

Ca(OH)2

0.35% max
CaSO4 0.3% max
INSOLUBLES IN WATER 0.2% max

ANHYDROUS

CaCl2

90.0 - 95.0%
NaCl 5.0% max
TRANSPORTATION
PACKING

25kgs or big bag
HAZARD CLASS

 
UN NO.

 
OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 36, Safety Phrases: 26