Other Calcium Chloride Applications FAQs

Download a copy of the current kosher certificate for all OxyChem food grade calcium chloride products.

Yes. Please Contact Us for details.

Yes. Located in Ludington, Michigan, the facilities associated with the manufacture and packaging of OxyChem's food grade calcium chloride products undergo an annual audit of Good Manufacturing Practices and Food Safety Systems conducted by a reputable, independent auditor.

Download the current copy of the audit certificate.

Yes. Please refer to the applicable product pages for the following food grade products:

BRINERS CHOICE® Anhydrous Calcium Chloride Pellets
Food Grade Anhydrous 94-97% Calcium Chloride Pellets
LIQUIDOW® Food Grade Calcium Chloride Solution

No. OxyChem calcium chloride products are not certified per NSF/ANSI 60, Drinking Water Treatment Chemicals; or NSF/ANSI 61, Drinking Water System Components.

No. OxyChem recommends against using our calcium chloride in drinking water applications due to the presence of impurity bromide. Bromide can react with oxidizers used for water sterilization to form bromate. In many countries, drinking water standards restrict bromate to very low levels. These standards may not be met if drinking water is treated with our calcium chloride and sterilized with oxidizing chemicals, such as ozone.

The amount of calcium chloride used should not exceed 2% and application rates should vary with temperature.

Preferably, add calcium chloride solution to aggregates in the mixer drum or as a portion of the mixing water. Add calcium chloride at the ready-mix plant if the concrete will be discharged within one hour of the start of mixing. Otherwise, add it at the job site, mixing for at least three minutes or 30 revolutions of the mixer, whichever is longer.

If dry calcium chloride is used, it should be free of lumps and added to aggregates in the mixer drum before mixing, or to the mixed concrete just before discharge.

Please refer to the publication Calcium Chloride in Portland Cement Concrete for more complete information about the use of calcium chloride as an accelerating admixture.

Consult the most recent reports from the following American Concrete Institute (ACI) committees for information about the amounts of calcium chloride that are allowed in concrete under various exposure conditions, and conditions in which calcium chloride should not be used. Relevant reports include:

ACI 201 Durability of Concrete
ACI 212 Admixtures for Concrete
ACI 222 Corrosion of Metals in Concrete
ACI 306 Cold Weather Concreting
ACI 318 Standard Building Code for Reinforced Concrete

Yes. To increase the calcium hardness by 10 ppm in 10,000 gallons of water, add one pound of DOWFLAKE® Xtra 83-87% Calcium Chloride Flakes.  Solid calcium chloride currently manufactured by OxyChem contains bromide. While the presence of bromide in pool and spa water is not uncommon (it is often present in disinfectants), it can react with other chemicals to form unwanted disinfection by-products.

Technical grades of solid and liquid calcium chloride may be used to freeze-proof water-filled containers, such as traffic barriers. The target concentration depends primarily on the level of freeze protection desired. See below for the freeze points of typical concentrations. Use our helpful Making Solutions Calculator tool to determine the amount of dry calcium chloride to mix with water to achieve solutions of various concentrations.

Yes. According the websites of three common brands (Trex®, TimberTech®, and DuraLife®), calcium chloride can be used as an ice melter on this type of decking material.

For additional information, see