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Beware of calcium chloride impersonating calcium formate

Editor:川东化工Time:2019-04-09Hits:
Recently, many calcium formate users feedback that calcium formate bought in the chemical market was adulterated by calcium chloride!

In order to distinguish some problems of calcium formate and sodium chloride, here will make a detailed distinction between calcium formate and calcium chloride.

Calcium formate and calcium chloride both belong to calcium salts. Calcium formate is white crystal or powder. Calcium chloride is crystalline, honeycomb, spherical, irregular granular or powdery, etc. (Calcium chloride has different shapes according to the crystalline water contained, and calcium chloride itself is very easy to absorb water and different shapes according to the degree of deliquescence).



In terms of use, calcium formate and calcium chloride can be used to supplement the calcium of animals. The difference is that calcium formate belongs to organic calcium salts. Its calcium is very helpful for animal tolerance and absorption, and its calcium absorption rate is also higher.

In industry, both calcium formate and calcium chloride can be used to increase the strength and cold resistance of building cement or mortar. Calcium chloride as early strength agent has been the longest used early strength agent so far, but because it contains chloride ions, it can not be used in concrete with steel embedded parts. Calcium formate has a wider range of applications and more stable properties.

It can be said that calcium formate and calcium chloride have similarities in appearance and use.

However, calcium formate and calcium chloride are still relatively easy to distinguish. The solubility of calcium formate in water is about 16g/100g and that of calcium chloride is 74g/100g at 20°C. If there are two standard products of calcium formate and calcium chloride, they can be distinguished by solubility. When the solubility exceeds the solubility of calcium formate, adulteration can be determined.

In addition, solubility and insoluble matter content are two different indicators. The water-producing solution of calcium formate in CDchem is clear and transparent with very little insoluble matter. When the water solution is turbid and can't exceed the standard, we should consider whether the product itself is a by-product or the factory index is too low.

Because it is difficult to identify calcium formate and calcium chloride directly by eye, the treatment can be distinguished by dissolving in water; if conditions permit, the most effective and accurate method is chemical inspection. When it is not convenient for chemical inspection, it is necessary to choose a reliable brand product with good reputation.

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