Calcium Citrate Powder

Calcium Citrate powder
Calcium Citrate CAS 5785-44-4
Compostion 100% Calcium citrate
Starting Material Citric acid, calcium carbonate
Package 25kg/bag
Shelf Life 2 Years
Origin China


The apperance of calcium citrate is white powder. It is insoluble in water and ethanol.

2. Usage

a. Food additive

In the food industry, calcium citrate is mainly used as a chelating agent, buffer agent, tissue coagulant, and preservative in dairy products, jams, beverages, flour, candies, pastries, etc.

b. Calcium supplement.

Calcium citrate, as an organic calcium source, contain about 21% of calcium. It has higher solubility and bioavailability than inorganic calcium. There is no stumulation to gastrointestinal tract and it can be directly absorbed by the human body without being neutralized by gastric acid. The absorption rate of calcium citrate is 22-27% which is  higher than that of calcium carbonate. Moreover, the solubility of this ingredient is superior to other calcium sources such as calcium phosphate and calcium sulfate. During the degradation process of this material, calcium ions release efficiently and stably. It is suitable as a a biomedical material such as providing the necessary calcium ions for the early stage of fracture healing which makefracture defects.

Calcium citrate can anticoagulate the blood, prevent and treat hypertension and myocardial infarction. So it is the first choise for calcium supplement.

c. Provide energy and eliminate fatigue

The citric acid in the product undergoes a tricarboxylic acid cycle, ultimately generates carbon dioxide and water and ATP (adenosine triphosphate) , thereby,  providing energy for the body and promote growth and development.

Citric acid is a food flavor acid complexant that can promote fat breakdown and maintain the body’s acid-base balance. Obese people are prone to fatigue because their body fat and lactate in the blood are prone to increase and accumulate. Therefore, once lactate increases, fat will also increase, making them feel lazy and lethargic, forming a vicious cycle. Citric acid can reuse lactic acid as energy,  it can accelerate the decomposition of lactic acid, eliminate fatigue and activate the whole body, so no longer feel weak . Consuming citric acid can reduce the content of lactic acid in the body, allowing oxygen and nutrients to be smoothly transported to various parts of the body, further enhancing the body’s ability to produce energy, and generating the physical strength and motivation to exercise. Many well-known athletes rely on the intake of citric acid to maintain their best physical condition.

d. Promote digestion

Calcium citrate in the feed industry is not only a high-quality calcium source, but also breack down into citric acid in the stomach, which can lower the pH of the gastrointestinal tract, activate pepsinogen, make up for the insufficient secretion of hydrochloric acid in piglets, improve the digestion rate of protein feed in piglets, and prevent the growth and reproduction of pathogenic bacteria such as Escherichia coli, promote the growth of beneficial bacteria such as lactobacilli, and reduce diarrhea rate.

3.Spec of Calcium citrate

Product Calcium citrate
CAS No. 5785-44-4
Chemical formula Ca3(C6H5O7)2 • 4H2O
Molecular Weight 570.49
Description White powder
Package 25kg/bag
According USP
Identification Pass A, B
Assay (dry basis) 97.5 -100.5 %
Loss on drying 10.0 – 13.3%
Acid-insoluble substances ≤ 0.2%
Limit of fluoride ≤0.0030%
Arsenic ≤3ppm
Lead ≤10ppm
Heavy metals ≤20ppm

Link: Calcium citrate DC


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