Demex Chemical Company,. Ltd

swr, Cameroon

We offer dicumyl peroxide.Specifications:-a white rhombus crystal, insoluble in water, dissolving in alcohol, ether, benzene, cumene andother organic solvents specification:content(%wt) 99total volatile (%wt) 0.10melting point ()39.02appearance white crystal properties:a white rhombus crystal, insoluble in water, dissolving in alcohol, ether, benzene, cumene and other organic solvents.sublimate in high vacuum.specific gravity d420 is 1.0481.mainly decomposing into acetophenone and dimethyl carbinol.activeoxygen content:5.8%. Decomposing temp:120. Half-life period:1 min.when temp.is180;1 hr. When temp.is 135;10 hrs. When temp.is 116usage:as an excellent organic peroxide, dcp may serve as an initiator forpolymerization, a vulcanizing agent, a crosslinking agent, or a solidifyingagent, all of which have been found extensively applied to the manufacturing ofmacro-molecular materials such as rubberwares, polyolefin and foamed plastics. Andall these material are extremely useful in pe cable insulating and shoe-makingindustries etc.it is also a suitable additive for flame-retarding coatings.Packing:charged into pe plastic bags, each 5kg net weight and packed either in cartonbox, each 20kg net weight or in fiber drums, each 50kg net weight.Not damageable if stored below 30;kept from direct sunbeam and violent shakingduring transportation;not permissible to be accompanied with strong acids orreducitives during storage or shipment.

1.powder of brilliant colors. Eye-pleasing and perdurable, strong coloring power, 2.good covering power, and good dispersibility, 3.light permanency and weatherability. usage:1. Used in kinds of paints, including water-soluble paint for outside and inside wall, and oil paint including kinds of first coat and face coat such as epoxy, alkyd, amine etc. 2. Used in coloration for construction materials, i.e. Mosaic brick, levigation level ground, concrete production, brick for pavement, colorful tiles and man-made marble, etc. 3. Used in coloration for colorful paper. 4. Used in surface coloration for rubber production, and strengthen the abrasion resistance of rubber filling. 5. Used in coloration for plastics, which is harder to fade. 6. Used in detecting the damage degree of machine by its magnetism.

We are manufacturers of paraffin wax.Specifications:- colourless or white, somewhat translucent, hard wax consisting of a mixture of solid straight-chain hydrocarbons colourless or white, somewhat translucent, hard wax consisting of a mixture of solid straight-chain hydrocarbons ranging in melting point from about 48 to 66 C (120 to 150 F). Paraffin wax is obtained from petroleum by dewaxing light lubricating oil stocks. It is used in candles, wax paper, polishes, cosmetics, and electrical insulators. It assists in extracting perfumes from flowers, forms a base for medical ointments, and supplies a waterproof coating for wood. In wood and paper matches, it helps to ignite the matchstick by supplying an easily vaporized hydrocarbon fuel. Paraffin wax was first produced commercially in 1867, less than 10 years after the first petroleum well was drilled. Paraffin wax precipitates readily from petroleum on chilling. Technical progress has served only to make the separations and filtration more efficient and economical. Purification methods consist of chemical treatment, decolorization by adsorbents, and fractionation of the separated waxes into grades by distillation, recrystallization, or both. Crude oils differ widely in wax content. Synthetic paraffin wax was introduced commercially after World War II as one of the products obtained in the FischerTropsch reaction, which converts coal gas to hydrocarbons. Snow-white and harder than petroleum paraffin wax, the synthetic product has a unique character and high purity that make it a suitable replacement for certain vegetable waxes and as a modifier for petroleum waxes and for some plastics, such as polyethylene. Synthetic paraffin waxes may be oxidized to yield pale-yellow, hard waxes of high molecular weight that can be saponified with aqueous solutions of organic or inorganic alkalies, such as borax, sodium hydroxide, triethanolamine, and morpholine. These wax dispersions serve as heavy-duty floor wax, as waterproofing for textiles and paper, as tanning agents for leather, as metal-drawing lubricants, as rust preventives, and for masonry and concrete treatment.

We are offering aluminium sulphate. Specifications alumium sulphate1.appearance: white powder, flake and granule2.purity:15.8%--17%3.usage:papermaking, printing and dye al2o315.80%min fe:0.45%maxph:3.0minwater insolubles0.15%max. as:0.0005%max; pb:0.002%max. al2o3: 16.00%minfe:0.40%maxph:3.0minwater insolubles:0.15%maxas:0.0005%max;pb:0.002%max al2o3; 17% min; fe: 0. 30% max; ph: 3. 0minwater insolubles: 0. 15% max aluminium sulphate non ferricalumina:17 %iron:0.01%water insoluble:0.5 %ph:2.6size: lumps/granules/powder.