Finoric LLC

Calcium Chloride Dihydrate & Hexahydrate & Solution

Calcium Chloride Dihydrate, Hexahydrate & Solution Supplier Manufacturers' Representative , USP BP FCC Food Analytical Reagent Grade & Desiccant

Calcium Chloride Dihydrate
CAS number: 10035-04-8
EINECS EC number: 233-140-8
Molecular Weight: 147.02
Chemical Formula: CaCl2.2H2O

Calcium Chloride Hexahydrate
EINECS EC number: 233-140-8
Molecular Weight: 219.07
Chemical Formula: CaCl2.6H2O

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DESCRIPTION

Calcium Chloride, CaCl2, chemical compound that is crystalline, lumpy, or flaky, is usually white, and is very soluble in water. A white deliquescent compound, Calcium Chloride, CaCl2, which is soluble in water; m.p. 782°C. There are a number of hydrated forms, including the monohydrate, CaCl2.H2O, the dihydrate, CaCl2.2H2O (r.d. 0.84), and the hexahydrate, CaCl2.6H2O. The hexahydrate loses 4H2O at >30°C and the remaining 2H2O at 200°C). Large quantities of it are formed as a by-product of the Solvays Process or other manufacturing activities and it can be prepared by dissolving calcium carbonate or calcium oxide in hydrochloric acid. Solid calcium chloride is used in mines and on roads to reduce dust problems, whilst the molten salt is the electrolyte in the extraction of calcium. An aqueous solution of calcium chloride is used in refrigeration plants.

Calcium Chloride, CaCl2, is hygroscopic; it rapidly absorbs water and is used to dry gases by passing them through it. Calcium chloride is commercially available usually as the dihydrate, CaCl2·2H2O; it is used to melt ice on roads, to control dust, in brines for refrigeration, and as a preservative in foods. It is also used in the monohydrate and hexahydrate forms.

Calcium Chloride Fused 75-80% Dihydrate Commercial Grade Lumps Granules or Powder Crystals:

Calcium Chloride Fused 75-80% Assay
Appearance White Lumps or Powder
Magnesium & Alkali 1% max. (Grade with higher NaCl content is also offered)
Iron 100 ppm max.
Dry Basis Assay 98% min.
In 50 Kgs. HDPE bag with HMHDP liners

Calcium Chloride Dihydrate Crystals:

The wording Calcium Chloride fused is loosely used for Calcium Chloride having various amount of water with CaCl2 around its dihydrate formula i.e. CaCl2.2H2O and it is ideally having 75.5%  Calcium Chloride with water as shown below:

CaCl2.2H2O
Ca(40) +  Cl2(71) + 2H2O(36) make % of CaCl2 in it as 36/(40+71+36) = 75.51%

It is important for the user of Calcium Chloride fused to understand the difference between Calcium Chloride Dihydrate Crystals and Calcium Chloride Fused.

First stage at which manufactured Calcium Chloride, CaCl2 is available is of Calcium Chloride Solution say of 30-35%.. On further evaporation it can be converted to Dihydrate Calcium Chloride Crystals or Calcium Chloride Fused.

Calcium Chloride Dihydrate is having a melting point of 176C or there about at normal pressure. To get Dihydrate Crystals CaCl2.2H2O, one must evaporate Calcium Chloride in a vacuum evaporator maintaining temperatures of about 100C. Temperature control is important to avoid formation of Calcium Chloride Tetrahydrate. Calcium Chloride Dihydrate crystals are separated from the mother liquor by high speed centrifuges and surface dried.

Specifications of Calcium Chloride Dihydrate CaCl2-2H2O

Assay 97 to 103% as CaCl2-2H2O Di-hydrate
Arsenic 0.0003% max. <3 ppm
Lead (Pb) 0.001% max. <10 ppm
Heavy Metal as (Pb) 0.0003% max. <3 ppm
Magnesium/Alkali 1% max. (Typically in ppm.)
Clarity of 10% Solution Clear & Colorless
Free Acid or Alkali 0.005% max. &pH 4.5-9
  0.2ml of 0.01M HCl/NaOH to 10ml of 10%

Specifications of Calcium Chloride Di hydrate & AR Grade

Assay Dihydrate CaCl2.2H2O 97%-103%. as CaCl2-2H2O
Free Acid or Alkali 0.005% Max. as HCl OR Ca(OH)2
Sulphate (SO4) 0.01% Max
Iron 0.001% Max
Magnesium 0.05% Max

Calcium Chloride Hexahydrate Crystals Extra Pure CaCl2.6H2O
Hexahydrate Calcium Chloride is having a melting point of 29C or there about at normal pressure. To get Calcium Chloride Hexahydrate Crystals, one must evaporate Calcium Chloride in a vacuum evaporator maintaining temperatures of about 100C during evaporation and then quickly chilling the mass. Temperature control is important to avoid formation of Calcium Chloride Tetrahydrate. Calcium Chloride Hexahydrate crystals are separated from the mother liquor by high speed centrifuges and surface dried.

Calcium Chloride Hexahydrate is used in the pharmaceutical industry as well as for passive cooling applications as a latent heat energy storage material.  We expertise in the manufacture of CaCl2.6H2O and are totally equipped to offer the best grade for latent heat storage applications with user-specified melting temperature (m.p.).

Specifications of Calcium Chloride Hexahydrate AR Grade

Assay Hexahydrate 99%-101%. as CaCl2-6H2O
Free Acid or Alkali 0.005% Max. as HCl OR Ca(OH)2
Sulphate (SO4) 0.01% Max
Iron 0.001% Max
>Magnesium 0.05% Max

Calcium Chloride USP Grade Specifications
Calcium Chloride, Dihydrate USP
Formuka: CaCl2·2H2O
Weight: 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.
Labeling: Where Calcium Chloride is intended for use in hem dialysis, it is so labeled.
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).
Aluminum (where it is labeled as intended for use in hem dialysis): the limit is 1 4g per g.
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 TS, 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 BP Dihydrate Grade Specifications
Calcium Chloride BP Dihydrate
Formula: 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 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 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 Grade Specifications
Calcium Chloride BP Hexahydrate
Formula: 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.

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 15.0 g in carbon dioxide-free water prepared from distilled water R 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 R 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 FCC US Food Chemical Codex Grade Specifications
Formula Calcium Chlorideanhydrous: CaCl2
weight Calcium Chlorideanhydrous: 110.98
Formula Calcium Chlorideanhydrous: CaCl2·2H2O
weight Calcium Chloridedihydrate: 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
Labeling: Indicate whether it is anhydrous or the dihydrate.
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
Calcium Chloride

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 Analytical Reagent Grade Specifications
Formula: CaCl2 . 2H2O
Weight: 147.01
CAS Number: 10035-04-8
Calcium Chloride

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 Grade Specifications

Formula: CaCl2
Weight: 110.98
CAS Number: 10043-52-4

REQUIREMENTS
Assay: 96.0% CaCl2

MAXIMUM ALLOWABLE
Titrable base: 0.006 meq/g


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