dl-lacticacidhemi-zinc
dl-lactic acid hemi-zinc
CAS: 16039-53-5
Molecular Formula: C6H10O6Zn
dl-lacticacidhemi-zinc - Names and Identifiers
| Name | dl-lactic acid hemi-zinc |
| Synonyms | Zinc Lactate Zinc lactate zinc dilactate Zinclactate-2-hydrate ZINC LACTATE DIHYDRATE dl-lacticacidhemi-zinc dl-lactic acid hemi-zinc DL-Lactic acid hemizinc salt Zinc, bis2-(hydroxy-.kappa.O)propanoato-.kappa.O-, (T-4)- |
| CAS | 16039-53-5 |
| EINECS | 240-178-9 |
| InChI | InChI=1/C3H6O3.Zn/c1-2(4)3(5)6;/h2,4H,1H3,(H,5,6);/q;+2/p-1 |
dl-lacticacidhemi-zinc - Physico-chemical Properties
| Molecular Formula | C6H10O6Zn |
| Molar Mass | 243.53 |
| Density | 1.65[at 20℃] |
| Melting Point | >256°C (subl.) |
| Boling Point | 227.6℃ at 760 mmHg |
| Water Solubility | 48.2g/L at 20℃ |
| Solubility | Water (Slightly) |
| Vapor Presure | 0Pa at 20℃ |
| Appearance | White crystal |
| Color | White to Off-White |
| pKa | 8.51[at 20 ℃] |
| Storage Condition | 2-8°C |
| Physical and Chemical Properties | White orthorhombic crystalline powder, odorless. Soluble in water, slightly soluble in ethanol. Water of crystallization was lost at 100 °c. Melting point 280 ° C., optical rotation 0.0048 °, specific optical rotation [α]D200.096 °. The content of zinc is 22.2% of that of zinc lactate. |
| Use | For zinc food, nutrition Oral Liquid, children zinc tablet and granule production |
dl-lacticacidhemi-zinc - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| WGK Germany | 3 |
dl-lacticacidhemi-zinc - Reference
| Reference Show more | 1. Song Ping, Chen Guangyi, Wei Zhiyong, et al. Effect of Zinc Lactate Nanowires as Nucleating Agent on Crystallization of Polylactic Acid [J]. 2012 of Functional Materials (01):42-45. |
dl-lacticacidhemi-zinc - Nature
Open Data Verified Data
White Crystal or powder, odorless.. Soluble in water, slightly soluble in ethanol. Water of crystallization was lost by heating to 100 °c.
Last Update：2024-01-02 23:10:35
dl-lacticacidhemi-zinc - Preparation Method
Open Data Verified Data
prepared by reaction of lactic acid solution with zinc oxide powder, cooling crystallization, filtration, separation and washing. It can also be prepared by reacting calcium lactate with zinc sulfate, filtering, washing and drying.
Last Update：2022-01-01 10:09:47
dl-lacticacidhemi-zinc - Use
Open Data Verified Data
zinc lactate is a kind of zinc food fortifier with excellent performance and ideal effect. It plays an important role in the intelligence and physical development of infants and adolescents, and the absorption effect is better than that of inorganic zinc. Can be added to milk, milk powder, grain cereals and other products. China's regulations (are zinc): the amount of 30~60 mg/kg in dairy products, infant food usage of 25~70mg/kg; grain and its products in the use of 5~10 mg/kg; Drink in the use of 5~10 mg/kg; Children oral liquid dosage of 0.6~1. Og/kg (zinc lactate).
Last Update：2022-01-01 10:09:47
dl-lacticacidhemi-zinc - Reference Information
| LogP | 0 at 20℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| dosage | China stipulates that zinc lactate can be used in dairy products, and the usage amount is 30-60 mg/kg (in terms of zinc, the same below); The usage amount in infant food is 25-70 mg/kg; The usage amount in cereals and their products is 5-10 mg/kg; The usage amount in drinking liquid is 5-10 mg/kg; the maximum dosage in children's oral liquid is 0.6~1.0 g/kg (calculated as zinc lactate). |
| use | zinc lactate can be used in the production of zinc supplement food, nutrition oral liquid, children's zinc supplement tablets and granules. it is a good food zinc fortifier and is widely used in cakes, beverages, various nutrient solutions, flour, nutrition salt, dairy products and bean products. it plays an important role in the intellectual and physical development of infants and adolescents, the absorption effect is better than that of inorganic zinc. Zinc lactate can also replace glycerin in tobacco products as a fragrance, antifreeze and moisturizer for cut tobacco; in cosmetics, it can also be used in facial cleanser, beauty cream, lotion, shampoo, and facial mask. |
| production method | 1. metathesis method adds 13.0g of calcium lactate (pentahydrate) and 12.1g of zinc sulfate (heptahydrate) to 100mL of water, stirring, heating and reflux reaction. After the reaction is over, filter while hot and wash with water to remove calcium sulfate precipitate (light blue and white powder). The filtrate is a milky white translucent liquid. When it is cooled and left to stand, white crystals will precipitate. Finally, 8g of white powder (melting point 276~27 7 ℃) was obtained by filtration, washing with water and drying with 64% yield. (C3H503)2Ca+ZnSO4→ (C3H5O3)2 Zn+CaSO4↓2. In the neutralization method, zinc oxide powder is added to the finished lactic acid solution for heating and stirring for 2~3h. The reactants are cooled and crystallized, filtered and separated, washed with water for several times, and then dried at 60~65 ℃ to obtain the finished product. This method is simple in process, good in quality, but high in cost. 2C3H6O3+ZnO→(C3H5O3)2Zn+H2O3. It can also be fermented from starch to obtain lactic acid, and then react with zinc salt to obtain zinc lactate. |
Last Update：2024-04-09 15:16:48
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