Polyvinyl alcohol is an excellent water-based adhesive. The general product is flake, granular or flocculent. It is not easily� soluble in cold water. Heating is generally required during dissolution. After being finely pulverized and surface treated, it has� better cold water dissolving performance. But because of its thermoplasticity, pulverization becomes particularly difficult. Our� factory adopts a special liquid nitrogen low temperature cooling process to ensure that the powder of the crushed material is� uniform. So that the material has excellent water solubility.
Commodity: Sodium bicarbonate Synonym: Baking Soda; Bicarbonate of soda; Sodium acid carbonate; Monosodium carbonate; Sodium hydrogen International CHEMTREC , carbonate; Carbonic acid monosodium salt Molecular formula:NaHCO3 Molecule Weight:84.01 H.S code:28363000 CAS:144-55-8 Characteristics: White powder or tiny crystalls, nodorousand salty, easily soluble in water,insoluble in alcohol, presenting slightly alkalinity, decomposed when heating. Decomposed slowly when exposed to moist air. Quality Standard Item The National Standard The Total Alkalinity Content(NaHCO3)% 99.0, 100.5 Loss on Dring% 0.20 PH Value(10g/1) Solution, 8.6 Arsentic Content% 0.0001 Heavy Metal Content, 0.0005 Ammonium Salt pass Clearness pass Uses: food fermentation, feed addive, detergent ingredient, carbon dioxide foamer, pharmacy, leather, ore milling and metallurgy, detergent for wool, extinguisher and metal heat-treating, fiber and rubber industry, etc. Packing:25kgs or 50kgs plastic woven bags lined with one layer polythene bag. (We can meet with all your demands according with your need.)
Polyvinyl Alcohol
POLYVINYL ALCOHOL - FULLY HYDROLYZED/MEDIUM VISCOSITY HIGH PURITY (99%) COA AND SAMPLES OFFERED PRIOR TO SALE
Polyvinyl alcohol (PVA) resin is a polymer. Ití»s usually a white or slight yellow flocculent, flake, grnular or powdery solid. Its molecular formular is (C2H4O)n. Ití»s non-toxic, insipid, non-polluting. PVA is a water-soluble resin and has good chemical stability. It also has good adhesion, film-forming alibility, insulation, oil resistance, abrasion resistance and gas barrier properties, and has typical chemical properties of polyols. And can make esterification, etherification, acetalation reactions. Main Prodcuts: PVA low alkali 05 series: 0588, 0592, 0595, 0597, 0599. 13 series: 1388, 1392, 1395, 1397, 1399. 17 series: 1788, 1792, 1795, 1797, 1799. 20 series: 2088, 2092, 2095, 2097, 2099. 22 series: 2288, 2292, 2295, 2297, 2299. 24 series: 2488, 2492, 2495, 2497, 2499. 26 series: 2688, 2692, 2695, 2697, 2699. PVA application PVA products have a wide range of uses. a.In the textile industry, they are mainly used as yarn pulp, fabric finishing agents, and raw material of vinylon fibers. b.in the construction and decoration industries, pva can be used as mortar cement additives, paint additives for interior and exterior walls, and molding plate adhesives c. in the chemical industry, PVA can be used as polymerization emulsifiers, dispersants, and raw materials for the production of PVF, acetalal and butyral resins. d. in lumbering and paper making industries, PVA can be used as adhesives. e. in agriculture, PVA can be used as soil improvers, pesticide adhesion synergist and PVA film. 25kg polywoven bags.
As per international standard, or as per particular specification given by bulk buyer too. 20kg net or 25kg net multi wall paper bag export worthy.
White powder or tiny crystals, inodorous and salty, easily soluble in water, insoluble in alcohol, presenting slightly alkalinity, decomposed when heating. Decomposed slowly when exposed to moist air. Natural soda is firstly dissolved into solution (Na2CO3) and filtrated. The clear solution is then fed to carbonizing tower ; accordingly, CO2 is compressed and bubbled up from the bottom of the tower, After carbonization, the slurry will be flowed from the bottom and separated. Dried to the finished product. Usage: Used as food fermentation, detergent ingredient, carbondoxide foamer, pharmacy, leather, ore milling and metallurgy, detergent for wool, exiting usher and metal heat-treating, fiber and rubber industry, etc.