Introduction to calcium diphosphate.
Dicalcium phosphate is an important inorganic salt product, which is widely used in food, feed, medicine and other fields. In this article, the physical and chemical properties, production process, application fields and safety of dicalcium phosphate will be introduced.
1. Physical and chemical properties.
The chemical formula of dicalcium phosphate is CahPO4·2H2O, and the relative molecular weight is 17208。It is a white or yellowish powder, non-toxic and odorless, insoluble in ethanol, slightly soluble in water, soluble in dilute hydrochloric acid and nitric acid. The density of dicalcium phosphate is 2335g cm, melting point of 190, stable in air, not easy to absorb moisture.
Second, the production process.
The production process of calcium diphosphate mainly includes crushing, ball milling, impurity removal, acid hydrolysis, concentration, crystallization and drying of ore raw materials. Among them, acidolysis is the key link, which requires the selection of appropriate acid and concentration, and the control of reaction temperature and time to ensure product quality and yield. At present, sulfuric acid is mainly used as an acidolytic agent in China, and a large amount of waste gas and wastewater will be produced in the production process, which needs to be treated with effective environmental protection measures.
Third, the field of application.
As an important inorganic salt product, dicalcium phosphate has a wide range of applications. In the food industry, dicalcium phosphate can be used as a nutritional enhancer and quality improver for the production of bread, biscuits, pastries and other foods to improve the nutritional value and taste of products. In the feed industry, dicalcium phosphate can be used as an additive to supplement mineral elements such as phosphorus and calcium to promote animal growth and improve feed utilization. In the pharmaceutical industry, dicalcium phosphate can be used as a pharmaceutical excipient and pharmaceutical raw materials, such as raw materials and preparations for the production of vitamin D2. In addition, dicalcium phosphate can also be used in water treatment, ceramics, glass, chemical reagents and other fields.
4. Security.
Dicalcium phosphate is a safe and reliable food additive and feed additive, which is widely used in the production of various types of food and feed at home and abroad. Dicalcium phosphate is added in a low amount of food, and it has undergone strict quality control and supervision, and will not have a negative impact on human health. However, for people with allergies, excessive intake of calcium diphosphate may cause allergic reactions. In addition, since dicalcium phosphate contains two mineral elements, phosphorus and calcium, excessive intake may also have adverse health effects in some specific populations. Therefore, when using dicalcium phosphate, the addition amount and scope of use should be strictly controlled to ensure the safety and effectiveness of the product.
5. Prospects. With the increasing attention to food safety and nutrition, the market demand for calcium diphosphate, as an important inorganic salt product, will continue to grow. In the future, the production process and technology of calcium diphosphate will continue to improve and innovate to achieve a more environmentally friendly, efficient and energy-saving production method. At the same time, with the continuous expansion of new application fields, the application prospect of calcium diphosphate will also be broader. In the future development, the calcium diphosphate industry needs to strengthen technological innovation and product research and development, improve product quality and added value, so as to meet the diversified needs of the market.
In short, dicalcium phosphate, as an important inorganic salt product, has a wide range of application fields and market demand. Knowledge of the physicochemical properties, production process, application field and safety of dicalcium phosphate will help to better understand and use this substance. In the future, with the continuous development of technology and market, the calcium diphosphate industry will continue to grow and play an important role. Leavening agent