Barium zinc sulfide
lithopone
CAS: 1345-05-7
Molecular Formula: BaO5S2Zn2
Barium zinc sulfide - Names and Identifiers
Barium zinc sulfide - Physico-chemical Properties
| Molecular Formula | BaO5S2Zn2 |
| Molar Mass | 412.23 |
| Density | 4.136~4.39 |
| Storage Condition | Room Temprature |
| Physical and Chemical Properties | White powder, is a mixture of zinc sulfide and barium sulfate. white crystalline powder. For the mixture of zinc sulfide and barium sulfate, the more zinc sulfide, the stronger the hiding power, the higher the quality. Density 4.136~4.34g/cm3, insoluble in water. When the acid is easy to decompose to produce hydrogen sulfide gas, when hydrogen sulfide and alkali solution does not work. By the sun in the ultraviolet radiation 6~7H into light gray, in the dark still restore the primary color. It is easy to oxidize in the air, and caking and deterioration after moisture. Its whiteness and hiding power are stronger than that of zinc oxide, and its refractive index and opacity power are higher than that of zinc oxide and lead oxide, but inferior to that of titanium dioxide. |
| Use | For paint, ink, rubber and other coloring inorganic white pigment, widely used in polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon and polyoxymethylene and other plastics and paints, the white pigment of the ink. It is less effective in Polyurethanes and amino resins and less suitable in fluoroplastics. Also used for rubber products, paper, paint cloth, tarpaulin, leather, color pigment, paper, enamel and other coloring. It is used as a binder in the production of electric beads. |
Barium zinc sulfide - Upstream Downstream Industry
| Raw Materials | Zinc hypoxide Potassium permanganate Sulfuric acid Barium sulfate Calcium hypochlorite Zinc Hydrochloric acid Zinc oxide Barium sulfate |
Barium zinc sulfide - Nature
Open Data Verified Data
white powder, is a mixture of zinc sulfide and barium sulfate. The relative density of 4.136~4.39. Insoluble in water. Does not work with hydrogen sulfide and alkaline solutions. When acid is easy to decompose to produce hydrogen sulfide gas. It is easy to oxidize in the air, and caking and deterioration after moisture. Whiteness, strong hiding power.
Last Update：2024-01-02 23:10:35
Barium zinc sulfide - Preparation Method
Open Data Verified Data
barite calcination method; Prepare barium sulfide solution (see barium sulfide). Sulfuric acid and zinc oxide reaction, adding potassium permanganate and zinc powder refined, after compression to obtain zinc sulfate solution. Further, the prepared barium sulfide solution is added and mixed to perform a metathesis reaction to obtain a mixture of zinc sulfide and barium sulfate to precipitate, and then the precipitate is subjected to pressure filtration, calcination, wet grinding, drying and pulverization to obtain a finished lithopone.
Last Update：2022-01-01 10:58:24
Barium zinc sulfide - Use
Open Data Verified Data
inorganic white pigment. Widely used as polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon and polyoxymethylene and other plastics and paint, ink white pigment. For rubber products, paint, leather, paper, enamel and other coloring.
Last Update：2022-01-01 10:58:24
Barium zinc sulfide - Safety
Open Data Verified Data
packaging of woven bags lined with polyethylene plastic bags, each with a net weight of 25kg. Store in a cool, ventilated, dry warehouse. Should pay attention to heat, moisture. It was stored separately from the acid. Light loading and light unloading during handling to prevent package breakage. When there is a fire, it can be suppressed by water and various kinds of fire retardants.
Last Update：2022-01-01 10:58:25
Barium zinc sulfide - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| lithopone and titanium dioxide | lithopone is white crystalline powder. It is a mixture of zinc sulfide and barium sulfate. The more zinc sulfide is contained, the stronger the hiding power and the higher the quality. Density 4.136~4.34g/cm3, insoluble in water. It is easy to decompose in case of acid to produce hydrogen sulfide gas, but it does not work in case of hydrogen sulfide and alkali solution. After being irradiated by ultraviolet rays in sunlight for 6~7 hours, it becomes light gray, and it is still restored to its primary color in a dark place. It is easy to oxidize in the air and agglomerates and deteriorates after being affected with damp. Titanium dioxide (TiO2) is an important inorganic chemical product, which has important uses in coatings, inks, papermaking, plastic rubber, chemical fiber, ceramics and other industries. Titanium dioxide (English name: titanium dioxide), the main component is the white pigment of titanium dioxide (TiO2). The scientific name is titanium dioxide (titanium dioxide), and the molecular formula is TiO2 is a polycrystalline compound with regular arrangement of particles and a lattice structure. Titanium dioxide has the smallest relative density. The production process of titanium dioxide has two process routes: sulfuric acid method and chlorination method. |
| structure | zinc-barium white consists of ZnS and BaSO4, and the mixing of these two components in the coating is not a separate state. BaSO4 has a rhombic crystal structure ZnS has a cubic or hexagonal crystal structure |
| physical properties | appearance: white powder, a mixture of zinc sulfide and barium sulfate. zinc sulfide content: 28% ~ 30% density: 4.136~4.34g/cm3, relative density: among commonly used white pigments, lithopone has the smallest relative density, among white pigments of the same quality, titanium dioxide has the largest surface area and the highest pigment volume. refractive index: 2 oil absorption: 10-12 its whiteness and covering power are stronger than zinc oxide, and its refractive index and opaque power are higher than zinc oxide and lead oxide, but second to titanium dioxide. Stability: ZnS fades to gray under ultraviolet light. In order to avoid this problem, nickel powder and iron powder can be added when preparing zinc-barium, and cobalt and copper can be calcined first. |
| synthesis method | (1) roasting leaching method is adopted. The reaction equation is as follows: 2C + O2 → 2CO2 BaSO4 + C → BaS + 4CO BaSO4 + 4CO → BaS +4CO2 BaS + ZnSO4 → ZnS?BaSO4 natural barite containing barium sulfate greater than 95% and anthracite are mixed and fed at a mass of 3:1 (mass), crushed to a diameter of less than 2cm to enter the reduction furnace, control the furnace temperature to be 1000~1200 ℃ in the front section and 500~600 ℃ in the back section, the reduction furnace rotates at a speed of 80s per revolution, the reaction conversion rate is 80% ~ 90%, the prepared barium sulfide enters the leach, and the temperature is controlled above 65 ℃, the content of barium sulfide is 701%, and then it enters the clarification barrel. After clarification, zinc sulfate is added to react, and the content of zinc sulfate is controlled to be greater than 28%, pH = 8~9, and a mixture of barium sulfate and zinc sulfide with a density of 1.296~1.357g/cm3 is obtained. The reaction solution is filtered by plate and frame pressure to obtain filter cake-like lithopone with a water content of not more than 45%. It enters a drying roasting furnace to change the crystal form of lithopone, and then pickled with sulfuric acid at 80 ℃. Finally, it is made by washing with water, adding fixing agent, pressure filtration, drying and grinding. (2) barite calcination method prepare barium sulfide solution (see barium sulfide). React sulfuric acid and zinc oxide, add potassium permanganate and zinc powder to refine, and obtain zinc sulfate solution after compression. Then add the prepared barium sulfide solution and mix it for metathesis reaction to obtain a mixture of zinc sulfide and barium sulfate. Then, the precipitate is filtered, calcined, wet ground, dried, and crushed to obtain a finished zinc-barium white product. The reaction equation is as follows: ZnSO4 BaS → ZnS BaSO4 |
| main uses | 1. used for coloring paint, ink, rubber, etc. 2. inorganic white pigment. Widely used as polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon and polyoxymethylene and other plastics and paint, ink white pigment. Used for coloring rubber products, lacquer cloth, leather, paper, enamel, etc. 3. Inorganic white pigment, widely used in polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon, polyoxymethylene and other plastic and paint, ink white pigment. The effect is poor in polyurethane and amino resin, but it is not suitable in fluoroplastics. It is also used for coloring rubber products, papermaking, lacquer cloth, tarpaulins, leather, watercolor pigments, paper, enamel, etc. Used as an adhesive in the production of electric beads. |
| Source | http://baike.baidu.com/item/立德粉?sefr=sebtn http://baike.so.com/doc/5581340-5794229.html |
| use | used for coloring paint, ink, rubber, etc. inorganic white pigment. Widely used as polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon and polyoxymethylene and other plastics and paint, ink white pigment. Used for coloring rubber products, lacquer cloth, leather, paper, enamel, etc. inorganic white pigment, widely used in polyolefin, vinyl resin, ABS resin, polystyrene, polycarbonate, nylon and polyoxymethylene and other plastic and paint, ink white pigment. The effect is poor in polyurethane and amino resin, but it is not suitable in fluoroplastics. It is also used for coloring rubber products, papermaking, lacquer cloth, tarpaulins, leather, watercolor pigments, paper, enamel, etc. Used as an adhesive in the production of electric beads. |
| production method | roasting leaching method is adopted. The reaction equation is as follows: 2C + O2 → 2CO2 BaSO4 + C → BaS + 4CO BaSO4 + 4CO → BaS +4CO2 BaS + ZnSO4 → ZnS BaSO4 The natural barite containing barium sulfate greater than 95% and anthracite are mixed and fed at a mass of 3:1 (mass), crushed to a diameter of about 2cm below the reduction furnace, and the furnace temperature is controlled to be 1000~1200 ℃ in the front part and 500~600 ℃ in the back part, the reduction furnace rotates at a speed of 80s per revolution, the reaction conversion rate is 80% ~ 90%, the prepared barium sulfide enters the leach, the temperature is controlled above 65 ℃, the barium sulfide content is 701%, then enters the clarification barrel, adds zinc sulfate to react after clarification, controls the zinc sulfate content to be greater than 28%, pH = 8~9, and obtains a mixture of barium sulfate and zinc sulfide with a density of 1.296~1.357g/cm3. The reaction solution is filtered by plate and frame pressure to obtain filter cake-like lithopone with a water content of not more than 45%. It enters a drying roasting furnace to change the crystal form of lithopone, and then pickled with sulfuric acid at 80 ℃. Finally, it is made by washing with water, adding fixing agent, pressure filtration, drying and grinding. Barite calcination method to prepare barium sulfide solution (see barium sulfide). React sulfuric acid and zinc oxide, add potassium permanganate and zinc powder to refine, and obtain zinc sulfate solution after compression. Then add the prepared barium sulfide solution and mix it for metathesis reaction to obtain a mixture of zinc sulfide and barium sulfate. Then, the precipitate is filtered, calcined, wet ground, dried, and crushed to obtain a finished zinc-barium white product. Its ZnSO4 BaS → ZnS BaSO4 |
Last Update：2024-04-09 21:04:16
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Product Name: Lithopone Visit Supplier Webpage Request for quotation
CAS: 1345-05-7
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CAS: 1345-05-7
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Raw Materials for Barium zinc sulfide