barium sulfate
Classification:
Product Description
Specification parameters
| 中文名称 | 硫酸钡 |
|---|---|
| 英文名称 | Barium sulfate |
| 中文别名 | C.I.颜料白21;硫酸钡;沉淀硫酸钡;重晶石;硫酸钡干混悬剂 |
| 英文别名 | C.I. 77120; C.I. Pigment White 21; Barium sulfate [JAN]; Barite; Bariumsulfate,precipitated; Bariumsulfate; bariumsulfuricum; BARIUM SULPHATE PRECIPITATED; barium sulphate |
| CAS号 | 7727-43-7;13462-86-7 |
| 分子式 | BaSO4 |
| 分子量 | 233.3907 |
| 物性数据 |
1. 性状:斜方晶系,晶体多呈板状、短柱状,一般呈致密块状、板状、柱状产出。晶体无色透明,一般呈白色、灰白、灰色、浅黄、淡红、浅蓝、棕褐等色。玻璃光泽,断口珍珠光泽,条痕白色。 2. 密度(g/mL,25/4℃):4.5 3. 熔点(ºC):1350 4. 沸点(ºC,常压):1580 5.溶解性:溶于热的浓硫酸,几乎不溶于水、乙醇和稀酸。 |
essential information
Barium sulfate, this product is a dual contrast agent for X-rays. It is a high-density gastrointestinal contrast agent that can be made into suspensions of different proportions for individual use, but is usually used together with low-density gas to achieve dual contrast imaging. Commonly used for gastrointestinal imaging, according to reports from domestic users, unevenly sized barium sulfate is superior to fine and uniform barium sulfate. Be cautious when used for the formation of intestinal fistulas and certain intestinal diseases that are prone to perforation, such as appendicitis, diverticulum, ulcerative colitis, parasitic infections, etc.
application area
1. Insoluble in water and acid, chemically stable, non-magnetic and non-toxic, and capable of absorbing X-rays and gamma rays. Barite is mainly produced in sedimentary layered deposits and low-temperature hydrothermal veins, often coexisting with quartz, dolomite, calcite, fluorite, galena, sphalerite, chalcopyrite, and other minerals.
2. It is mainly used as a weighting agent for oil and gas drilling mud, and is also an important mineral raw material for extracting metallic barium and producing various barium compounds. The most important barium compounds in industry include barium carbonate, barium chloride, barium sulfate, barium nitrate, barium hydroxide, barium oxide, barium peroxide, barium chromate, barium manganese oxide, barium chlorate, lithopone, barium polysulfide, etc. Barium compounds have a wide range of uses: as raw materials and fillers for rubber, plastics, pigments, coatings, papermaking, textiles, paints, inks, welding rods; Used as raw materials for barium based lubricants, oil refining, sugar beet production, and artificial silk; Used as insecticides, sterilizers, rodenticides, explosives, green fireworks, signal flares, tracer flares, medical X-ray imaging indicators, etc; It is also used in departments such as glass, ceramics, leather, electronics, building materials, metallurgy, etc. Barium metal can be used as a suction and bonding agent for televisions and vacuum tubes. Alloys made of barium, aluminum, magnesium, lead, silver, and other metals are used to manufacture bearings.
3. Used as a mordant for printing and dyeing, a sizing and weighting agent for fabrics, a filler for papermaking, a filler for fire-resistant fabrics and leather making, a laxative for the pharmaceutical industry and a raw material for the production of magnesium trisilicate for stomach medicine, a stabilizer for esophageal and gastrointestinal X-ray imaging diagnosis in the production of fresh yeast, monosodium glutamate, and calcium phosphate for toothpaste, and also used in the formulation of plant hibernation extenders. Used for the preparation of crack free plating solution in metal electroplating, as a conductive salt in nickel plating solution, it can also make the white surface of the coating soft.
4. Used as a filler for adhesives, sealants, rubber, plastics, paints, inks, white pigments, insulation tapes, etc., it can endow rubber and plastic products with X-ray impermeability and improve the flame resistance of chloroprene rubber products. It can be used as a sizing agent in textiles. Used as a surface coating agent in the production of printing paper and copperplate paper. The conductive salt used in the electroplating industry as a nickel plating solution can improve the dispersion of the plating solution. Used as a clarifying agent in glass manufacturing, it has the effect of increasing gloss and defoaming. It is also a raw material for manufacturing enamel, ceramics, pigments, and other barium salts, as well as X-ray gastrointestinal contrast agents.
Packaging, Storage, Transportation, and Safety
1. Keep away from sources of fire and heat. The packaging requires sealing and must not come into contact with air. It should be stored separately from reducing agents, flammable and combustible materials, metal powders, etc.
2. Store in a ventilated and dry warehouse. Do not store or mix with acids and edible items. Handle with care during loading and unloading to prevent packaging damage.