Ferrous sulfate (food grade), also known as green alum and iron alum, is an inorganic sulfate with the chemical formula FeSO&&midot;7HOO (heptahydrate) and a relative molecular weight of 278.02.Food grade ferrous sulfate is odorless and has a salty taste. The substance is a light green to blue-green crystalline powder or particle. Common forms include powdered, granular, and crystallized. It has no obvious odor, is easy to absorb moisture and agglomeration, and is easy to oxidize to a yellow-brown color when exposed to air, and has excellent solubility.It is soluble in water, slightly soluble in ethanol, insoluble in ether and acetone, and the aqueous solution is weakly acidic with a pH value of about 3.5-5.0. It has excellent nutritional fortification, reduction and stability. It is an important supplementary source of iron, an essential trace element for the human body. Iron can participate in human hemoglobin synthesis, oxygen transportation and metabolic regulation. At the same time, it can be used as a food additive to improve product quality and antioxidant preservation. It is an indispensable nutrient fortification raw material in food, health products, feed and other fields.When heated to 90℃, the crystallized water becomes ferrous sulfate monohydrate. Continued heating to above 300℃ will decompose to produce iron oxide. It needs to be sealed and stored in a cool and dry place, away from high temperature, open flame, alkaline substances and strong oxidants to prevent moisture absorption, oxidation and deterioration.It is mainly used for nutritional fortification, antioxidant and preservation in food processing. At the same time, it can be used in food additives, pharmaceutical excipients, feed additives, chemical raw materials and other fields. It is used as a nutritional enhancer, reducing agent, colorant, and also used in food processing, pharmaceutical synthesis, water treatment and other processes.Its functions are both nutritional supplementation, antioxidant and quality optimization. It is non-toxic and harmless. It strictly complies with the standards for the use of food additives. It is one of the commonly used raw materials in the field of food nutrition fortification and antioxidant. It fits the current development trend of "high purification, greening, and multi-functionalization" of the ferrous sulfate industry.

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Application Description

1. It is used as a nutritional enhancer and antioxidant preservative in the field of food processing. It is mainly used in dairy products, soy products, cereal products, beverages, candy, meat products and other food processing. It can supplement the iron element in food to meet the human body's needs for trace elements. At the same time, it can be used as an antioxidant to inhibit food oxidation and deterioration, extend shelf life, improve food color and taste, and enhance product nutritional value and quality. Strictly follow the standards for the use of food additives, comply with GB 29201 "National Food safety Standard Food additive Ferrous Sulfate" regulations, adapt to the needs of large-scale food production, can be used in conjunction with vitamin C and other accessories to promote iron absorption.
2. The pharmaceutical industry is used as pharmaceutical excipients and nutritional supplements for the production of multi-dimensional element tablets, oral liquids, capsules, iron supplements and other pharmaceutical and health products. It can be used as a supplementary raw material for iron to assist in the prevention and improvement of iron deficiency anemia, regulate human metabolism, and enhance immunity. At the same time, it can be used as a reducing agent for drug synthesis to assist in the smooth progress of drug synthesis, meet the high standards of the pharmaceutical industry, and meet the growing trend of demand in the pharmaceutical and health products industry.
3. In the chemical industry, it is used as a chemical raw material and reducing agent for the production of iron oxide, iron salts, dyes, pigments and other chemical products. At the same time, it can participate in the redox reaction and serve as a reducing agent and bleaching agent for organic synthesis. It is suitable for the upgrading needs of the fine chemical industry. At the same time, it can be used in the production of high-end electronic materials and new energy materials in the application field of high-purity ferrous sulfate.
4. The feed industry is used as a feed additive for the production of livestock, poultry and aquatic feed. It can supplement the iron required for animal growth, promote the synthesis of animal hemoglobin, improve growth performance and immunity, improve feed utilization, prevent animal iron deficiency anemia, and improve the quality of breeding products. It is one of the commonly used trace element supplementary raw materials in the feed industry, which meets the development needs of large-scale breeding industry.
5. In the field of water treatment, it is used as a water treatment agent and a reducing agent. It is used for domestic sewage and industrial sewage treatment. It can remove heavy metal ions and phosphates from the water and prevent eutrophication of water bodies. At the same time, it can be used as a reducing agent to remove residual chlorine from the water, improve water quality, adapt to the large-scale production needs of the electric water treatment industry, and meet the development trend of the environmental protection water treatment industry.
6. It is used as a fertilizer additive in the agricultural field for the production of compound fertilizers, which can supplement the iron in the soil, promote crop photosynthesis and growth and development, prevent crop iron deficiency yellowing disease, and improve crop yield and quality. It is especially suitable for rice, wheat, vegetables, fruit trees and other crops to improve soil fertility and meet the needs of agricultural modernization.
7. It is used as a colorant and reducing agent in the light industry, and is used in the production of papermaking, leather, daily chemicals and other products. It is used as a paper colorant and bleaching aid in the paper industry to improve the color and whiteness of the paper; it is used as a leather tanning agent and reducing agent in the leather industry to improve the quality and color of the leather; at the same time, it can be used in cosmetics and other products as a supplement to trace elements to enhance the skin care effect of the product.
8. It is used as a chemical reagent in the laboratory, as a reducing agent, a reference reagent, and a color rendering agent. It is used in experimental operations such as chemical analysis, organic synthesis, and microbial culture. It can also be used to prepare buffers, calibrate experimental instruments, and assist in the smooth progress of various experiments. It is one of the commonly used reagents in the laboratory.