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What are the main uses of calcium acetate monohydrate?
The main uses of calcium acetate monohydrate include: in the food industry, it can be used as a chelating agent, stabilizer and acidity regulator for canned food, soy products and other food processing, and has the functions of preservation and taste improvement; in the medical field, it can be used as a raw material for calcium supplements to prevent and treat calcium deficiency, and its water solubility and weak acidity make it easy for the human body to absorb; in agriculture, it can be used as a trace element fertilizer to provide calcium nutrition for crops and regulate soil acidity; in industry, it can be used as an intermediate in organic synthesis to participate in the preparation of acetate compounds, and can also be used as an additive for coatings and inks to improve product performance. It can also be used as a calcium source for water quality regulation in water treatment. In addition, due to its certain hygroscopicity, it can be used as a humidity regulator in some fields.
How safe is calcium acetate monohydrate?
Calcium acetate monohydrate has generally low toxicity for humans when taken at normal dosage as food additive or calcium supplement. As such, caution must still be exercised when using it; its low level of toxicity makes it harmless when consumed at normal levels as an oral food supplement or food additive. However, excessive intake may irritate the gastrointestinal tract and result in nausea, vomiting and other discomforts; dust is irritating to respiratory system; inhalation of high-concentration powder may lead to coughing and throat discomfort. Wear a protective mask during operation; coming into contact with skin or eyes could result in mild irritation due to its weak acidity (the pH value of its aqueous solution is lowly acidic). If accidentally exposed, rinse with clean water immediately; when stored, it must be sealed and stored in a dry and ventilated location to prevent mixing with strong acids to release acetic acid vapor; for food or pharmaceutical raw material uses, safety standards must be strictly observed; in industrial uses, chemical operation specifications should be referred to in order to minimize children's contact and accidental ingestion; generally speaking, under standardised storage and use conditions the risk is manageable.
What are the production methods of calcium acetate monohydrate?
The production method of calcium acetate monohydrate mainly includes: using calcium carbonate or calcium hydroxide as a raw material, reacting with acetic acid solution to generate calcium acetate solution, and obtaining a product containing crystal water after evaporation concentration and cooling crystallization, for example, slowly adding calcium carbonate powder into acetic acid aqueous solution, controlling the reaction temperature and stirring until completely dissolved, filtering to remove impurities and then concentrating and crystallizing; it can also be prepared by the reaction of acetic acid and calcium oxide. During the reaction, calcium oxide and water first generate calcium hydroxide, which is then neutralized with acetic acid, and then the product is obtained through the same crystallization and purification steps; in addition, the by-product or recycled calcium acetate solution can be used in industry for refining, and the monohydrate can be obtained by adjusting pH, evaporation crystallization and other processes. The entire production process needs to pay attention to controlling the reaction conditions (such as temperature, concentration, pH value) to improve the crystal purity and yield, while ensuring the purity of the raw materials and the adequacy of the reaction.
Application Differences of Calcium Acetate Monohydrate in Different Industries?
The differences in the application of calcium acetate monohydrate in different industries are mainly reflected in the following: in the food industry, it uses its chelating, stabilizing and acidity regulating properties as an additive for soy products, canned foods, etc., which has both antiseptic and taste improvement functions, and must comply with food-grade safety standards; in the pharmaceutical field, it uses its water-soluble calcium source properties as a raw material for calcium supplement preparations, focusing on biocompatibility and purity, and is used to prevent calcium deficiency diseases such as osteoporosis; in agriculture, it is used as a calcium fertilizer and soil conditioner to supplement calcium for crops and regulate acidity and alkalinity through foliar spraying or soil application, and pays more attention to cost and effectiveness; in industry, it participates in the preparation of acetate as an organic synthesis intermediate, or is used as a coating and ink additive to improve performance, focusing on reaction activity and impurity content; in the water treatment field, it is used as a calcium source to regulate water hardness, and solubility and ion release efficiency must be considered. Due to different application scenarios, each industry has significantly different requirements for product purity, safety and functional characteristics, thus forming targeted application directions.
What are the storage conditions for calcium acetate monohydrate?
The following conditions should be observed when storing calcium acetate monohydrate: it should be sealed and stored in a dry, well-ventilated warehouse to avoid humid environments to prevent crystal deliquescence or agglomeration; it should be kept away from heat sources and open flames to prevent excessive temperatures from causing loss of crystal water or initiating other chemical reactions; it should be stored separately from strong acids to avoid the release of acetic acid vapor after contact, and it should also be avoided from being mixed with oxidants and reducing agents to prevent unexpected reactions; the temperature of the storage environment should be controlled within the range of room temperature (10-30°C) to avoid extreme high or low temperatures that affect product stability; the packaging container must be kept intact, and if it is bagged or barreled, it should be tightly sealed to prevent dust from escaping or external moisture from invading; for food-grade or pharmaceutical-grade products, specific storage specifications must also be met to avoid contamination, and the storage status must be checked regularly to ensure the quality and safety of the product within the shelf life.