CaCl2- Calcium Chloride Pharma Grade
Assay: 93% minimum CaCl2 Calcium Chloride Anhydrous or 97 to 103% as CaCl2-2H2O Di-hydrate
Arsenic: 0.0003% maximum
Lead (Pb): 0.001% maximum
Heavy Metal as (Pb): 0.0003% maximum
Magnesium/Alkali: 1% maximum.
Clarity of 10% Solution: Clear & Colorless.
Free Acid or Alkali: 0.005% maximum & pH 4.5-9 or 0.2ml of 0.01M HCl/NaOH to 10ml of 10%.

Calcium Chloride Hexahydrate (EXTRA PURE)
CaCl2.6H2O EXTRA PURE Analytical Reagent Specifications
Assay as Calcium Chloride Hexahydrate: 99%-101%. as CaCl2-6H2O Calcium Chloride Hexahydrate
Free Acid or Alkali: 0.005% maximum as HCl OR Ca(OH)2.
Sulphate (SO4): 0.01% maximum.
Iron: 0.001% maximum.
Magnesium: 0.05% maximum.

Calcium Chloride Solution or Calcium Chloride Refrigeration Brine Grade
A Brine may be defined as liquid of low freezing point used in transmission of refrigeration without change of state. The brines commonly employed in refrigeration are Calcium Chloride CaCl2 and Sodium Chloride. Sodium Chloride is cheaper but cannot be used below minus 15C. CaCl2 of commercial grade can operate satisfactorily up to minus 40C. Use of CaCl2 above 33% should be avoided as it results in crystallization resulting in reduced efficiency. The CaCl2 selected should be adjusted to pH of around 8 and it should be free from free-acid and dirt. Colored material should not be used as it results in corrosion and scaling of the tubes. For the same reason by-product CaCl2 is not desirable as it contains Organic Chlorides which may break into Hydrogen Chloride.

Calcium Chloride BP Ph Eur Dihydrate Grade Specifications
CaCl2-2H2O

DEFINITION
Content: 97.0 per cent to 103.0 per cent of CaCl2-2H2O.

CHARACTERS
Appearance: White or almost white, crystalline powder, hygroscopic.
Solubility: Freely soluble in water, soluble in ethanol (96 per cent).

IDENTIFICATION
Solution S (see Tests) gives reaction of chlorides.
It gives the reactions of calcium.
It complies with the limits of the assay.

TESTS
Solution S: Dissolve 10.0 g in carbon dioxide-free water prepared from distilled water and dilute to 100 ml with the same solvent.
Appearance of solution: Solution S is clearand not more intensely colored than reference solution.
Acidity or alkalinity: To 10 ml of freshly prepared solution S add 0.1 ml of phph solution. If the solution is red, not more than 0.2 ml of 0.01 M hydrochloric acid is required to discharge the color and if the solution is colorless, not more than 0.2 ml of 0.01 M sodium hydroxide is required to turn it red.
Sulphates: Maximum 300 ppm.
Aluminium: To 10 ml of solution S add 2 ml of ammonium chloride solution R and 1 ml of dilute ammonia and boil the solution. No turbidity or precipitate is formed.
If intended for use in the manufacture of dialysis solutions, the above test is replaced by the test for Aluminium maximum 1 ppm.
Barium: To 10 ml of solution S add 1 ml of calcium Sulphate solution R. After at least 15 min, any opalescence in the solution is not more intense than that in a mixture of 1 ml of distilled water and 10 ml of solution S.
Iron: Maximum 10 ppm, determined on solution S.
Magnesium and alkali metals: Maximum 0.5 per cent.
Heavy metals: Maximum 20 ppm.

Calcium Chloride Hexahydrate BP Ph Eur Grade Specifications
CaCl2-6H2O

DEFINITION
Content: 97.0 per cent to 103.0 per cent of CaCl2-6H2O.

CHARACTERS
Appearance: White or almost white, crystalline mass or colorless crystals.
Solubility: Very soluble in water, freely soluble in ethanol (96 per cent).
It solidifies at about 29C.

TESTS
Solution S: Dissolve 15.0 g in carbon dioxide-free water prepared from distilled water and dilute to 100 ml with the same solvent.
Appearance of solution: Solution S is clear and not more intensely colored than reference solution.
Acidity or alkalinity: To 10 ml of freshly prepared solution S add 0.1 ml of phph solution. If the solution is red, not more than 0.2 ml of 0.01 M hydrochloric acid is required to discharge the color and if the solution is colorless, not more than 0.2 ml of 0.01 M sodium hydroxide is required to turn it red.
Sulphates: Maximum 200 ppm.
Aluminium: To 10 ml of solution S add 2 ml of ammonium chloride solution and 1 ml of dilute ammonia R1 . Heat to boiling. No turbidity or precipitate is formed. If intended for use in the manufacture of dialysis solutions, the above test is replaced by the test for Aluminium : maximum 1 ppm.
Barium: To 10 ml of solution S add 1 ml of calcium Sulphate solution. After at least 15 min, any opalescence in the solution is not more intense than that in a mixture of 1 ml of distilled water  and 10 ml of solution S.
Iron: Maximum 7 ppm, determined on solution S.
Magnesium and alkali metals: Maximum 0.3 per cent.
Heavy metals Maximum 15 ppm.

Calcium Chloride USP Grade Specifications
Calcium Chloride, Dihydrate. USP
CaCl2-2H2O --- 147.01

Assay: Calcium Chloride contains an amount of CaCl2 equivalent to not less than 99.0 percent and not more than 107.0 percent of CaCl2-2H2O.
Identification: A solution (1 in 10) responds to the tests for Calcium and for Chloride.
pH: between 4.5 and 9.2, in a solution (1 in 20).
Iron, aluminum, and phosphate: To a solution (1 in 20) add 2 drops of 3 N hydrochloric acid and 1 drop of phph TS. Then add ammonium chloride–ammonium hydroxide, drop wise, until the solution is faintly pink, add 2 drops in excess, and heat the liquid to boiling: no turbidity or precipitate is produced.
Heavy metals: the limit is 0.001%.
Limit of magnesium and alkali salts: Dissolve 1 g in about 50 mL of water, add 500 mg of ammonium chloride, and proceed as directed in the test for Limit of magnesium and alkali salts under Calcium Carbonate, beginning with “heat the solution, and boil for 1 minute”: the weight of the residue does not exceed 5 mg (1.0%).
Organic volatile impurities meets the requirements.

Calcium Chloride FCC Food Grade Specifications
CaCl2 Formula weight, anhydrous 110.98
CaCl2-2H2O Formula weight, dihydrate 147.01

DESCRIPTION
Calcium Chloride occurs as white, hard fragments, granules, or powder. It is anhydrous or contains two molecules of water of hydration. It is deliquescent. It is soluble in water and slightly soluble in alcohol. The pH of a 1:20 aqueous solution is between 4.5 and 11.0.
Function: Firming agent.

REQUIREMENTS
Identification: A 1:10 aqueous solution gives positive tests for Calcium and for Chloride.
Assay: Anhydrous: Not less than 93.0% and not more than 100.5% of CaCl2; Dihydrate: Not less than 99.0% and not more than 107.0% of CaCl2-2H2O.
Acid-Insoluble Matter Anhydrous: Not more than 0.02%; no particles per kilogram of sample greater than 2 mm in any dimension.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 0.004%.
Lead: Not more than 5 mg/kg.
Magnesium and Alkali Salts Anhydrous: Not more than 5.0%; Dihydrate: Not more than 4.0%.

Calcium Chloride Solution FCC Food Grade specifications

DESCRIPTION
Calcium Chloride Solution occurs as a clear to slightly turbid, colorless or slightly colored liquid at room temperature. It is normally available in a concentration range of about 35% to 45% of CaCl2.
Function: Sequestrant; firming agent.

REQUIREMENTS
Identification: When diluted to a concentration of about 1:10 (CaCl2 basis), a sample gives positive tests for Calcium and for Chloride.
Assay: Not less than 90.0% and not more than 110.0%, by weight, of the labeled amount of calcium chloride, expressed as CaCl2.
Alkalinity [as Ca(OH)2]: Not more than 0.3%.
Fluoride: Not more than 0.004%, calculated on the amount of CaCl2 as determined in the Assay.
Lead: Not more than 4 mg/kg, calculated on the amount of CaCl2 as determined in the Assay.
Magnesium and Alkali Salts: Not more than 5.0%, calculated on the amount of Calcium Chloride as determined in the Assay.

Calcium Chloride Dihydrate Analytical Reagent Grade Specifications
CaCl2-2H2O
Formula weight 147.01
CAS Number 10035-04-8

REQUIREMENTS
Assay: 99.0-105.0% CaCl2 - 2H2O
pH of a 5% solution: 4.5-8.5 at 25C

MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Oxidizing substances (as NO3): 0.003%
Sulfate (SO4): 0.01%
Ammonium (NH4): 0.005%
Barium (Ba): 0.005%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 0.001%
Magnesium (Mg): 0.005%
Potassium (K): 0.01%
Sodium (Na): 0.02%
Strontium (Sr): 0.1%

Calcium Chloride Desiccant Reagent Grade Specifications
CaCl2
Formula Wt 110.98
CAS Number 10043-52-4

REQUIREMENTS
Assay: 96.0% CaCl2

MAXIMUM ALLOWABLE
Titrable base: 0.006 meq/g