Name | Zinc carbonate basic |
Synonyms | ZINC CARBONATE BASIC Zinc carbonate basic ZINC HYDROXIDE CARBONATE Zinc carbonate hydroxide (Zn5(CO3)2(OH)6) |
CAS | 5263-02-5 |
EINECS | 226-076-7 |
Molecular Formula | CHO4Zn-3 |
Molar Mass | 142.4 |
Density | 4.398 |
Melting Point | 300 °C |
Water Solubility | Insoluble in water. |
Solubility | water: insoluble |
Appearance | Fine Crystalline Powder |
Specific Gravity | 4.398 |
Color | White |
Odor | Odorless |
Physical and Chemical Properties | The natural mineral of basic zinc carbonate is called "water zinc ore" and is a white amorphous powder. Relative density 4.42~4.45. Soluble in dilute acid and alkali, slightly soluble in ammonia and ammonium salt, insoluble in water, ethanol and acetone. Decompose into carbon dioxide and zinc oxide at 300 ℃. It reacts with H2O2 to release CO2 and form peroxide. |
Risk Codes | 53 - May cause long-term adverse effects in the aquatic environment |
WGK Germany | 2 |
HS Code | 28369917 |
pH range of acid-base indicator discoloration | 9.5 at 50g/l at 20°C |
Decomposition | 300 °C |
Overview | basic zinc carbonate is white amorphous powder, soluble in dilute acid, alkali, slightly soluble in ammonia and ammonium salts, insoluble in water, ethanol, acetone. 300 C decomposition of carbon dioxide and zinc oxide. Interaction with H2O2, release of CO2, the formation of peroxide. The fluorescence phenomenon can occur at 250~500 ℃ for different times of heating and cooling to room temperature. |
Application | zinc carbonate hydroxide can be used to make latex film products, pigments, rayon, catalytic desulfurizer, it is used in medicine as light astringents, antiseptics, disinfectants and skin protectants. Examples of its application are as follows: 1) preparing a skin care composition with anti-acne effect. The skin care composition contains the following functional ingredients in parts by weight: zinc hydroxide carbonate 0.01-2; Borax 0.01-0.1; Amber powder -0.01; Pearl powder 0.001-0.05; Salicylic acid 0.5-2; Borneol 0.1-1; Salvia miltiorrhiza extract 0.1-1; Clove flower extract 0.075-0.75; Scutellaria root extract 0.065-0.65; Licorice root extract 0.05-0.5; Nonyl diglycinate potassium 0.12-1.2; Sophora root extract 0.05-0.5; Vitamin B60.01-0.1; Houttuynia cordata extract 0.01-0.5; Peppermint leaf oil 0.5-5. The formula of the skin care composition of the present invention is scientific and rigorous, and the efficacy is exactly non-toxic and side effects. The skin care composition has the effect of significantly reducing skin roughness and removing acne, and the skin feel is good. 2) a Lithospermum extract was prepared. The present invention relates to Lithospermum paste, which belongs to the field of daily chemicals. The active ingredients of the Lithospermum extract include lithospermum root extract, olive oil, tocopherol acetate, lavender oil, pearl powder, Amber powder and zinc hydroxide carbonate. The preparation method is Pearl, Amber jet grinding, and other active ingredients, ointment matrix, thickening agent and stabilizer mixed product. The invention adopts the superfine powder technology to treat the main components in the formula, so that the functional components of the product can easily penetrate through the skin and mucosa, and the effect is enhanced. The Lithospermum paste of the present invention is applied to the bite site of the mosquito, Can eliminate swelling, mild skin trauma and red butt effect is obvious. At the same time, the Lithospermum paste has no preservative, no harm to the skin, safety and no stimulation, and is very suitable for infants. |