Product Description:
Many of mechanical seal to ISO3069 and DIN24960 are equivalent to John Crane, Burgmann, AES, Vulcan, Pillar etc., the seal face material including Silicon Carbide, Tungsten Carbide, Ceramic, Carbon Graphite. Write us for more information.
Product Description:
Sorbierite is also called sorbitol, molecular formula of which is C6H14O6.Sorbitol, which has a sweat taste, is a colorless and odorless crystal. Its specific gravity is 1.489(20/4), hydrate melting point 93-97.7, melting point 110 when it is in anhydrous form. It is soluble in water and slightly soluble in methanol, ethanol, acetic acid, phenol and acetamide. It can be widely founding nature and quickly absorbed by human body when it is oral.
Sorbitol is widely applied to foodstuff industry. It can be used as raw material of synthetic vitamin c in medicine. And used as plasticizer of resin
Product Description:
2-pyrrolidone which is also called Alpha-pyrrolidone, is written “2-P” for short. The molecular formula is C4H7NO.2-P is a colorless liquid. Its solidifying poine25.6°, flash point 129.4°, boiling point 245°, which is solubilize with water, low chain alcohol, low chain ether, chloroform and benzene. 2-pyrrolidone is a colorless high boiling point polar solvent and is also an organic synthetic intermediate product. As to this kind of solvents we can use it to produce synthetic resin, pesticide, polyvalent alcohol, printing inks and iodine, and as the raw materials of production of polyvinyl p
Product Description:
N-methyl-pyrrolidone that is also called N-methyl-2-pyrrolidone is written “NMP” for short. The molecular formula is C5H9NO. N-methyl-pyrrolidone, which is a liquid with little ammonia odor, can mix with almost all solvents such as ethyl alcohol, acetaldehyde, ketone, aromatic hydrocarbons and chlorohydro carbons etc. Its boiling point 204° and flash point 95°. NMP which is a polar non proton transfer solvent possesses little toxicity, high boiling point, powerful solvency, good selectivity and stability properties. The product is widely applied to aromatic hydrocarbons extracting, acetylene
Product Description:
Polyvinylpyrrolidone is written"PVP"for short, It can be dissolved in water and varieties of organic solvent and is hygrosopic ability, film-forming capability, complexing ability and physiology compatibility are good. hygroscopic ability, film-forming capability, complexing ability and physiology compatibility are good.
In field of cosmetc:PVP series can be used as filming-agent, viscosity-enhancement agent, lubricator and adhesive. They are the key component of hair sprays , mousse, gels and lotions, hair-dring reagent and shampoo in hair-care products and the key component of lip-stick
Product Description:
GBL is a non-toxic transparent liquid in the shape of oil. It can be mixed with water and dissolved by ethanol, ether, benzene and acetone. It can dissolve many other organic and inorganic compound. Using GBL is very safe and convenient, because it is a liquid with high boiling, powerful solvency, good electrical and stability properties.
GBL is an important organic synthetic raw material and a fine solvent. It is mainly used as synthetic pyrrolidone series products cyclopropylamine acetyl-r-butyrolactone, Besides these, GBL is also used as solvent for agricultural chemicals, polymer, dyes
Product Description:
PVP-I is the complex of PVP and iodine，has quite strong killing effect to bacteria, virus, epiphyte, mildew and spore, steady, no stimulate, all dissolve in water. Brown yellow or red brown molding powder, has weak special smell, can dissolve in water and ethanol, not dissolve in ethyl ether and chloroform, good stability, no stimulate, has strong extermination effect to bacteria, virus, epiphyte, mildew and sporule. Usually used in operation in hospital, skin and instrument antisepsis in injection, sterilization, prevent communicate in surgery and dermatology department; antisepsis for fami
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