Industrial salts / Buying guide

74% vs 94% calcium chloride: choosing a grade

Start with the CaCl₂ content your process needs, then choose the grade, physical form and packaging. Compare the full specification and the cost of supplying your required CaCl₂ content.

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74% dihydrate and 94% anhydrous compared

In the TENORCHEM range, 74% is a dihydrate grade and 94% is an anhydrous grade. Both percentages refer to CaCl₂ content by mass. Ask for the full specification alongside the headline percentage: grade, impurity limits and physical form remain part of the order.

Buying point74% dihydrate94% anhydrous
Product identityCaCl₂·2H₂O · CAS 10035-04-8CaCl₂ · CAS 10043-52-4
CaCl₂ minimum in the published specification74%94%
Industrial formsFlakes, powder and pelletsPowder and pellets / prills
Food-grade formsPowder or pellets; use the food-grade specificationPowder or pellets; use the food-grade specification
Grade decisionIndustrial or food grade, with the corresponding specificationIndustrial or food grade, with the corresponding specification
Standard pack sizes25 kg and 1,000 kg25 kg and 1,000 kg

Review the 74% dihydrate specifications or 94% anhydrous specifications for the selected grade. The full calcium chloride range also includes other contents; these require their own specifications.

Compare CaCl₂ content on the same basis

For a simple purchasing comparison, multiply the product mass by the CaCl₂ mass fraction. At exactly the stated concentrations, 1,000 kg of 74% product contains 740 kg of CaCl₂, while 1,000 kg of 94% product contains 940 kg.

Illustrative calculation: 740 ÷ 0.94 ≈ 787 kg of 94% product contains the same CaCl₂ mass as 1,000 kg of 74% product. This is a content comparison, not a dosing instruction or a guaranteed cost saving. Actual batch results, process performance, packing and freight all affect the purchase.

When preparing a solution, account for the selected grade and the target concentration. Calcium chloride dissolution releases heat; preparation and handling should follow the selected product’s SDS and your operating procedure. The OxyChem Calcium Chloride Handbook provides general background on solution properties and handling, rather than TENORCHEM acceptance limits.

Match the form and grade to the application

  • Snow and ice control: discuss the spreading equipment, application conditions and required form. Specify pellets / prills, flakes or powder rather than asking for a percentage alone.
  • Drying and moisture control: provide the equipment, contact materials and required particle size so the form and specification can be reviewed.
  • Refrigeration brines or chemical processing: state the target solution concentration, process conditions and impurity requirements.
  • Food-grade inquiries: identify the intended use and destination. A high CaCl₂ percentage or a white appearance does not by itself establish food-grade suitability.
TENORCHEM 94% anhydrous calcium chloride pellet sample
Anhydrous pellet sample. The agreed specification identifies the supplied grade and form.

Include packaging and storage in the decision

TENORCHEM offers 25 kg and 1,000 kg packaging for calcium chloride. PP bags, PE bags, pails, drums and private labels can be discussed for the order. Match the pack to your unloading equipment, daily consumption and onward distribution.

Keep the product dry and the packaging tightly sealed. Calcium chloride can absorb moisture from air, so warehouse conditions and the time an opened pack remains in use matter. Compare the practical trade-offs in our 25 kg bags vs big bags guide.

What to send for a useful quotation

  • Dihydrate or anhydrous; required CaCl₂ content; flakes, powder or pellets / prills.
  • Application, industrial or food grade, and any required impurity or particle-size limits.
  • Order quantity, destination, pack weight, pallet preference and label requirements.

Request the selected grade’s specification, TDS, SDS and a representative COA. Agree the order specification before bulk supply; the batch COA records the tested results for the supplied lot.

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