Zinc lactate

Product Details

CasNo： 16039-53-5

MF： C6H10O6Zn

Appearance： powder

Delivery Time： 15 days

Packing： 25kg/bag

Purity： 99%

Product Details of Zinc Lactate​

1. Basic Information​

1. Chemical Name: L(S)-2-hydroxypropionate zinc​

1. Molecular Formula: ​

Zn(CH3​CHOHCOO)2​⋅2H2​O

2. (for the common hydrate form), and the anhydrous form is ​

C6​H10​O6​Zn

3. ​

1. Molecular Weight: 279.53 (dihydrate); 243.54 (anhydrous)​

1. CAS Number: 16039 - 53 - 5​

1. EINECS Number: 240 - 178 - 9​

2. Physical and Chemical Properties​

1. Appearance: White crystalline powder​

1. Odor: Odorless​

1. Solubility: Slightly soluble in ethanol and readily soluble in hot water. At room temperature, its solubility in water can meet the requirements of most practical application scenarios, which is convenient for addition and mixing in the production of various products.​

1. Melting Point: Approximately 280°C (anhydrous). The hydrate will gradually lose crystal water during the heating process.​

3. Quality Standards (Refer to Standards: GB, FCC, FAO/WHO)​

1. Identification: It should show the identification reactions of zinc salts and lactate salts. Through professional chemical detection methods, for example, the flame color reaction can verify the presence of zinc ions, and the identification of lactate salts can be confirmed by its specific chemical reactions.​

1. Total Zinc Lactate Content (Calculated on a Dry Basis): ≥98.0%. The high content ensures the effectiveness and stability of the product, providing a solid foundation for its application in various fields.​

1. Content of L - Zinc Lactate in Total Zinc Lactate: ≥98.0% (if it involves L - type products). L - zinc lactate has unique advantages in aspects such as human absorption. A high proportion ensures better product quality.​

1. Loss on Drying: 10.5 - 14.0% (for products containing crystal water). Strictly controlling the water content can avoid affecting the chemical properties and storage stability of the product.​

1. pH Value (1% Aqueous Solution): 5.0 - 7.0. An appropriate pH range ensures the stability of the product in an aqueous solution and reduces the adverse effects on the pH of the application system.​

1. Heavy Metal Content:​

• Lead (Pb): ≤3.0mg/kg​

• Total Arsenic (Calculated as As): ≤2.0mg/kg​

• Cadmium (Cd): ≤2.0mg/kg​

Strictly controlling the heavy metal content complies with food safety and pharmaceutical - related standards, ensuring the health and safety of users.​

1. Other Impurities:​

• Water Solubility Test (1:10): Colorless and clear, indicating that the solution is clear after the product is dissolved in water without insoluble impurities.​

• Volatile Fatty Acids: It does not emit the odor of acetic acid or butyric acid, ensuring that the product has no peculiar smell and does not affect the sensory quality of the final product.​

• Sulfate (Calculated as ​

SO4​

• ): ≤500mg/kg​

• Chloride (Calculated as Cl): ≤500mg/kg​

4. Production Methods​

1. Double Decomposition Method: Add calcium lactate (such as pentahydrate) and zinc sulfate (such as heptahydrate) to water in a certain proportion, stir and heat for reflux reaction. After the reaction is completed, filter while hot to remove the precipitated calcium sulfate (light blue - white powder). The filtrate is a milky white translucent liquid. White zinc lactate crystals will precipitate after cooling and standing. Finally, obtain the finished product through steps such as filtration, washing with water, and drying. The reaction equation is: ​

(C3​H5​O3​)2​Ca+ZnSO4​→(C3​H5​O3​)2​Zn+CaSO4​↓

2. .​

1. Neutralization Method: Add zinc oxide powder to the finished lactic acid solution, heat and stir for a reaction of 2 - 3h. The reactants are cooled, crystallized, filtered and separated, and washed several times with water, and then dried at 60 - 65°C to obtain the finished product. This method has a relatively simple process and good product quality, but the cost is relatively high. The reaction equation is: ​

2C3​H6​O3​+ZnO→(C3​H5​O3​)2​Zn+H2​O

2. .​

1. Fermentation Synthesis Method: Lactic acid is prepared from raw materials such as starch through microbial fermentation, and then reacted with zinc salts (such as zinc oxide, zinc carbonate, etc.) to generate zinc lactate. This method can take advantage of biotransformation and regulate the product during the fermentation process, expecting to obtain high - purity and specific - configuration (such as L - zinc lactate) products.​

5. Applications​

1. Food Field:​

• Nutritional Fortifier: As a zinc - based food fortifier, it is added to various foods, such as milk, milk powder, cereal - based foods, infant foods, sports nutrition foods, solid beverages, oral liquids, milk and dairy products. Zinc is crucial for the intellectual and physical development of infants and adolescents. Compared with inorganic zinc, zinc lactate has the advantages of high absorption and utilization rate and less irritation to the gastrointestinal tract. For example, adding zinc lactate to infant formula foods helps meet the zinc demand of infants and young children during their growth and development.​

• Quality Improver: In some food processing processes, zinc lactate can adjust the pH value and improve the texture and stability of foods.​

1. Medical Field:​

• Zinc - Supplementation Agent: It is used to treat various diseases caused by zinc deficiency in the human body, such as growth retardation, low immunity, and poor appetite. Clinical studies have shown that children with acute diarrhea who take zinc lactate in addition to comprehensive treatment have significantly better clinical efficacy than those taking zinc gluconate. It can better improve clinical symptoms, shorten the course of diarrhea, and effectively reduce the occurrence of diarrhea within 3 months.​

• Other Applications: In some topical drugs or skin care products, zinc lactate can be used as an antioxidant, which helps prevent the aging of the skin and muscles.​

1. Cosmetics Field:​

• pH Regulator: It adjusts the pH value of the cosmetic system to make it more suitable for skin use.​

• Antimicrobial Agent: It is applied to oral care products, such as toothpaste, mouthwash, and breath fresheners, which can effectively prevent bad breath and inhibit the growth of microorganisms in the oral cavity.​

6. Usage Methods​

1. Addition Method: Zinc lactate powder can be directly added to the raw materials and evenly dispersed by stirring and mixing. It can also be dissolved in an appropriate amount of water first to prepare a solution of a certain concentration and then added to the product system, which can better ensure its uniform dispersion.​

1. Dosage: The dosage varies in different products. For example, in China, the regulations (both calculated as zinc) are as follows: the dosage in dairy products is 30 - 60mg/kg; in infant foods, the dosage is 25 - 70mg/kg; in cereals and their products, the dosage is 5 - 10mg/kg; in beverages, the dosage is 5 - 10mg/kg; in children's oral liquids, the dosage is 0.6 - 1.0g/kg (calculated as zinc lactate). In actual use, it is necessary to accurately calculate and control the addition amount of zinc lactate according to the target population, product characteristics, and relevant regulatory standards of the product.​

7. Storage and Packaging​

1. Storage Conditions: It should be stored in a sealed manner in a well - ventilated, dry, and dark warehouse, away from direct sunlight. The recommended storage temperature is 2 - 8°C (some products may have special storage temperature requirements). Such storage conditions can effectively prevent the product from absorbing moisture, oxidation, and microbial contamination, and extend the product's shelf life.​

1. Packaging Forms:​

• Food - Grade Packaging: Usually, it is packaged in plastic bags, with a nylon bag or plastic woven bag outside, with a net weight of 25kg. There are also cardboard drums lined with polyethylene plastic bags, with a net weight of 50kg per drum and other packaging forms.​

• Medical - Grade Packaging: More stringent packaging materials may be used, such as aluminum - plastic composite bags and glass bottles that meet the pharmaceutical packaging standards, to ensure the quality stability of the product during storage and transportation.​

• Cosmetics - Grade Packaging: According to the characteristics of the cosmetics industry, packaging forms such as plastic bottles and hoses may be used, which are convenient for taking and adding during the production of cosmetics.​