What is Calcium Chloride Anhydrous CAS 10043-52-4?

Calcium Chloride Anhydrous is dry calcium chloride with the formula CaCl2 and no water of crystallization. It is supplied as a white pellet or granular grade for moisture control, brine preparation and industrial process use.

Is Calcium Chloride Anhydrous the same as Calcium Chloride Dihydrate?

No. Anhydrous calcium chloride is CaCl2, while the dihydrate is CaCl2-2H2O with a different CAS number and roughly 20 percent water of crystallization. The anhydrous form has a higher active CaCl2 basis and absorbs moisture more rapidly.

Why is anhydrous calcium chloride useful as a drying agent?

Anhydrous calcium chloride is highly hygroscopic and readily absorbs water vapour from gases, organic liquids or enclosed systems. This property makes it suitable for industrial drying applications and for protecting moisture-sensitive materials during storage.

What are the main applications of Calcium Chloride Anhydrous?

It is used for industrial gas and hydrocarbon drying, high-strength calcium chloride brine make-up, refrigeration and process-temperature brines, and mineral-processing or water-treatment formulations. It is also chosen when a dry, concentrated calcium chloride source is required.

What physical form and handling considerations should be expected?

The material is typically white pellets, mini-pellets or granules with a CaCl2 assay commonly around 94-98 percent on the anhydrous basis. Because it absorbs moisture quickly, it should be kept in sealed, moisture-barrier packaging and stored dry.

Calcium Chloride Anhydrous CAS 10043-52-4

Calcium Chloride Anhydrous, CAS 10043-52-4, is a hygroscopic inorganic salt supplied as pellets or granules for industrial drying, brine preparation and selected process applications. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 10043-52-4
Synonyms: Calcium Chloride Anhydrous, Calcium dichloride, CaCl2, Anhydrous calcium chloride
Einecs: 233-140-8
Molecular Formula: CaCl2
Grade: Industrial Anhydrous Grade
Package: 25 kg moisture-barrier PP bags; 1000 kg FIBC bags with liners

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Product Description

Calcium Chloride Anhydrous CAS 10043-52-4 is calcium dichloride with EC 233-140-8 and molecular formula CaCl2.

Synonyms: calcium chloride anhydrous; calcium dichloride; anhydrous calcium chloride; CaCl2.

CAS: 10043-52-4.

Molecular formula: CaCl2.

It is a white to off-white solid, typically pellets, mini-pellets or granules.

It is a dry, hygroscopic grade for moisture control and industrial process use.

It absorbs water vapour from gases, organic liquids and enclosed systems.

It is used to prepare high-strength calcium chloride brines for drilling, completion, refrigeration and process-temperature systems.

It is also used in chemical, mineral-processing and water-treatment formulations requiring a dry calcium chloride source.

It differs from calcium chloride dihydrate (CAS 10035-04-8), which contains water of crystallization.

The anhydrous form has a higher active CaCl2 basis and absorbs moisture more rapidly than hydrated forms.

Commercial anhydrous grades commonly report an assay around 94-98 percent CaCl2 on the anhydrous basis.

Confirm the CaCl2 basis, particle-size range, water-insoluble matter, impurity limits and stated test method for the intended use.

Store in sealed, moisture-barrier packaging in a cool, dry, well-ventilated area.

Use suitable PPE when handling to avoid dust exposure and skin or eye contact.

Keep containers tightly closed when not in use to prevent moisture pickup.

Confirm grade, packaging, and specification as required.

The page is an RFQ entry point and does not state stock, price, MOQ, or fixed lead time.

For an RFQ, state the intended application, required grade, quantity, packaging, destination, and document needs.

FAQ - Technical & Supply Chain

Q:
What is Calcium Chloride Anhydrous CAS 10043-52-4?

A: Calcium Chloride Anhydrous is dry calcium chloride with the formula CaCl2 and no water of crystallization. It is supplied as a white pellet or granular grade for moisture control, brine preparation and industrial process use.
Q:
Is Calcium Chloride Anhydrous the same as Calcium Chloride Dihydrate?

A: No. Anhydrous calcium chloride is CaCl2, while the dihydrate is CaCl2-2H2O with a different CAS number and roughly 20 percent water of crystallization. The anhydrous form has a higher active CaCl2 basis and absorbs moisture more rapidly.
Q:
Why is anhydrous calcium chloride useful as a drying agent?

A: Anhydrous calcium chloride is highly hygroscopic and readily absorbs water vapour from gases, organic liquids or enclosed systems. This property makes it suitable for industrial drying applications and for protecting moisture-sensitive materials during storage.
Q:
What are the main applications of Calcium Chloride Anhydrous?

A: It is used for industrial gas and hydrocarbon drying, high-strength calcium chloride brine make-up, refrigeration and process-temperature brines, and mineral-processing or water-treatment formulations. It is also chosen when a dry, concentrated calcium chloride source is required.
Q:
What physical form and handling considerations should be expected?

A: The material is typically white pellets, mini-pellets or granules with a CaCl2 assay commonly around 94-98 percent on the anhydrous basis. Because it absorbs moisture quickly, it should be kept in sealed, moisture-barrier packaging and stored dry.

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