Chemical formula :B4H20Na2O17
Density:1.73 g/mL at 25 °C(lit.)
CAS logon number :215-540-4
Packing: 40kgs, 50kgs or 80kgs net per kraft paper bag
Borax, generally written as Na2B4O7•10H2O, is a very important boron-containing mineral and boron compound. Usually a white powder containing colorless crystals, odorless and salty. The specific gravity is 1.73. All crystal water is lost at 350-400°C. Soluble in water and glycerol, slightly soluble in alcohol. The aqueous solution is strongly alkaline.
1, Mainly used in glass and enamel industries. In glass, it can enhance the transmittance of ultraviolet ray and improve the transparency and heat resistance of the glass.
In enamel products, can make the enamel not easy to fall off and make its luster.
In special optical glass, glass fiber, welding agent for nonferrous metals, jewelry of adhesive, printing and dyeing, washing (silk and wool, etc.), gold refined soap, cosmetics, pesticide, fertilizer, borax, preservatives, antifreeze and medical disinfectant, etc, also have a wide range of applications.
2, Borax is the basic raw material for the preparation of boron-containing compounds. Almost all of the boron-containing compounds can be obtained by borax. They have important and extensive uses in the metallurgy, steel, machinery, military, cutting tools, paper, electronic tubes, chemical and textile sectors.
3, In medicine, borax is used for the disinfection and preservation of skin mucous membranes, fluorosis, tinea pedis, pulpitis, fungal vaginitis, cervical erosion, acne, acne, external ear canal eczema, herpes viral skin disease, epilepsy treatment. In the treatment of tumors. In veterinary medicine, borax is used for the treatment of chicken laryngotracheitis, goat infectious impetigo, swine mycoplasma pneumonia, and bovine chronic mucinous endometritis, and has attracted much attention as a feed additive.
4, Used for herbicides, used for non-farming area devitalizing weeding, except for use alone, mixed with sodium chlorate to reduce the flammability of sodium chlorate.
5, In industry, borax is the most important industrial boron mineral. Borax is the most important boron compound. Boron is often listed as a rare element in foreign countries. However, boron is abundant in our country. Therefore, boron is not a rare element in our country, but rather an element of high yield. Borax in the industry is also used as a solid lubricant for metal wire drawing. It is often used as (non-active) flux for cleaning metal surfaces in the welding and maintenance of refrigeration equipment such as refrigerators, electric freezers, and air conditioners. Remove oxides from metal surfaces; add a certain percentage of sodium chloride to borax. Compounds such as sodium fluoride and potassium chloride can be used as active fluxes for the welding of copper tubes and steel tubes and between steel tubes and steel tubes in refrigeration equipment.
Content of borax %≥
Sodium carbonate %≤
Insoluble matter %≤
Sodium sulfate %≤
Chloride by Cl-）/%≤
Toxicity grade: poisoning.
Acute toxicity: oral - rat LD50: 2660 mg/kg;
Oral - mouse LD50: 2000 mg/kg.
Flammability hazard properties: combustion produces toxic boron and sodium oxide gases.
Storage and transportation characteristics: low temperature drying in warehouse.
Extinguishing agent: dry powder, foam, sand.
The bags are packed in gunny bags lined with kraft paper or plastic bags. The net weight of each bag is 40 kg, 50 kg or 80 kg.
Storage and transportation precautions: should be carried in the car with the shacks, the cabin or the shed, should not be mixed with the wet goods or other colored materials, the means of transportation must be dry and clean. Store in a dry, clean warehouse, should avoid rain or moisture.
Dangerous goods mark: Xn,T
Secure note： 22-24/25-36/37-45-53
Hazard type code : 62-61-60
Dangerous goods transport number.: UN 1458