CAS: 13701-59-2 Barium metaborate B2BaO4, molecular weight 222.95, white rhombic crystalline crystalline powder. Relative density 3.25 ~ 3.35. Melting point 1060℃. Slightly soluble in water, easily soluble in hydrochloric acid. It has the properties of rust prevention, powder resistance, high temperature resistance, fire prevention and mildew prevention. Modified barium metaborate is a new non-toxic anti-rust pigment used in primer and topcoat in coating industry, and is also used in ceramics, papermaking, rubber, textiles and plastics industries. Synthesis method: 1, borax barium sulfide method (usually) : ① The mixture of barite and pulverized coal is calcined, leach with hot water in the extractor, and the barium sulfide liquid is obtained, and then the borax aqueous solution and sodium silicate aqueous solution are separately added to the reactor. After adding the three kinds of materials, the reactor is closed, the temperature is raised to 110℃±5℃, and the reaction is stirred for 2…

(1) Used in the paint industry primer, top paint, is a new type of anti-rust pigment; Barium metaborate is slightly soluble in water and releases Ba+ and B2O4- ions, which reverse the electrochemically corroded anode, thereby preventing the hydroxyl group from reacting with ferrous ions to form iron hydroxide (rust). In addition, barium ions can produce barium soap to increase the density of the paint film and reduce the water permeability of the paint film, so barium metaborate has excellent anti-rust properties. Barium metaborate has good color and low color strength, can be used as the pigment of primer and top paint, and has better anti-rust effect in water-based latex paint. (2) Used in ceramics, paper, rubber and plastics industries; Barium metaborate has the advantages of anti-rust, anti-mildew, anti-pulverization, flame retardant, long-lasting color and so on. Particularly valuable is that barium metaborate is non-toxic, in the manufacturing, construction and gas…

Modified barium borate used in the coating industry, its outstanding characteristics have a variety of effects, modified barium borate in the coating with rust, mold,bacteria, pollution, powder resistance, prevent discoloration, flame retardant and other functions, is a multi-functional anti-rust pigment. 1. Rust prevention Used in primer, it has excellent protective effect. 2. Anti-fog effect The durability of the paint film and the decorations are attacked by mold and bacteria. There are many factors that affect the shedding of paint film, and the polymerized paint film can be used as food by microorganisms. It has become more and more obvious that the paint base of the interface between the paint film and the bottom layer is used by bacteria, which is an important factor of the paint film shedding, which occurs at the bottom layer interface. Modified calcium metaborate is a kind of highly effective anti-mold agent which can control the…

Barium metaborate is also known as barium borate. White powder. Molecular weight 349.07. Dissolve in water. Functional pigments. It can enhance the anti- mildew, anti-rust, fire and anti-pulverization properties of the coating. It is prepared by adding barium sulfide and borax aqueous solution into the autoclave, adding a small amount of sodium silicate and heating at 125 ~ 140℃. At present, according to the data of different manufacturers, the particle size of barium metaborate commodity generally fluctuates in 0.35 ~ 35μm, the average particle size is about 8μm, and the effective particle size is only 3μm; The existing barium metaborate has the disadvantages of moisture absorption, caking, high water solubility, poor compatibility in various resins and poor firmness in paint film, so it must be modified with amorphous hydrated silica. At present, the existing method of preparing barium metaborate is to melt barium salt (barium sulfide, barium hydroxide, barium carbonate,…

The English name is barium metaborate Don’t call it Barium diboron tetraoxide; Chemical formula Ba(BO2)2 Molecular weight 222.95 EINECS entry number 237-222-4 Slightly soluble in water The function of barium metaborate: It has the properties of rust prevention, powder resistance, high temperature resistance, fire prevention and mildew prevention. Modified barium metaborate is a new non-toxic anti-rust pigment used in primer and topcoat in coating industry, and is also used in ceramics, papermaking, rubber, textiles and plastics industries. Modified barium metaborate can be used as a multi-functional pigment in coatings, which has the functions of anti-rust, anti-mildew, anti-bacteria, anti-fouling, flame retardant and color preservation. In the plastics industry, antimony trioxide can be partially replaced as a flame retardant, usually replacing 50%, which not only reduces the cost, but also has high thermal stability, the color is not easy to dark in the industrial sulfide smoke, improve light transmission, and does not…

Chemical name: barium metaborateCAS accession number: 13701-59-2Product specifications: Appearance  :  white orthorhombic crystalline powder Chemical formula ：Ba(BO2)2 Molecular weight：222.95 Melting point  ℃ ：1060 Barium oxide  % ：60.25 Boron trioxide  %： 22.96 Silica  % ：6.82 Water soluble fraction % ：0.23 Aqueous suspension PH ：10.14 Sieve residue  % ：0.17 Oil absorption  %： 25.24 Volatile  %： 0.92 Crystal water  % ：9.74 ◆Nature:known barium metaborate has four hydrates: monohydrate, dihydrate, tetrahydrate, and pentahydrate, which are slightly soluble in water and easily soluble in hydrochloric acid.◆Application:primer and topcoat used in the coating industry. It is a new type of anti-rust pigment and is also used in ceramics, papermaking, rubber and plastics industries. Used as an additive flame retardant, the flame retardant efficiency is not as good as antimony oxide, but because of its low price, it can be used as a substitute for antimony oxide flame retardants, and it has a synergistic effect with halogen-containing flame retardants. Suitable…