Fenwick And Ravi

Pigments are essentially coloured powders or Liquid, and are used to produce a full range of colours. We can say pigments are a primary material, to produce all types of paints and colouring material, Enamels, acrylics, pastels, chalks, Coloured pencils, oils textile prints , Inks, Rubbers, Plastics etc.

Commodity: Synthetic Cryolite Formula: Na3AlF6 M.W.: 209.95 Properties: The product is a white crystalline powder or a sandy-size granularity, and a pinkish crystalline powder or a sandy-size granularity as well. Sp.gr.2.953.01g/cm3, melting point about 1000centigrade, specific heat 1.056j/gcentigradeat 18100centigrade. Its slightly soluble in water, but insoluble in anhydrous hydrogen fluoride. The content of its crystal water will be decreased while the increasing of the molecular ratio, therefore its loss on ignition will be also decreased while the increasing of the molecular ratio. After the paste of synthetic cryolite with different molecular ratio dehydrates, the loss on ignition at 800centigrade will appear 10.34%, 6.22% and 2.56% when the molecular ratio reaches 1.74, 2.14 and 2.63 reactively. Specifications: Appearance white powder F 52% min Al 12% min Na 33% max SiO2 0.36% max Fe2O3 0.08% max CaO 0.5% max P2O5 0.03% max SO4 0.6% max H2O 0.4% max Loss on ignition 2 % max Uses: Its mainly used as a flux in the aluminum smelting by fused-salt electrolysis; also an opalizer in the manufacture of enamel; an opacifier and auxiliary solvent of glass and enamel; an insecticide of crops; a flux in aluminum alloy casting; and in the production of ferrous alloy and effervescing steel; as well as a wear-resistant filler for resin and rubber-boned abrasive wheels. Packing & Storage: In plastic coating woven bags with plastic film inside, 25kg,40kgs, 50kgs or 1000kgs net each, or as the requirement of clients.Stored: in a cool , ventilated, dry place.

Cmmdity: Aluminum Fluride (Aluminium fluride) ther name: Aluminum trifluride Frmula:AlF3 M.W.:83.98 Prperties: The prduct is a white needle crystal r pwder. SP. GR. 2.8823.13g/ cm3, sublimatin temp. 1272Celsiur scale.Its slightly sluble in water and greatly sluble in HF liquid. The chemical prperty fr the high density aluminum fluride is very steady, but that cntains certain crystal water will be decmpsed int Al23 at high temperature with HF being released. Specificatin: grade chemical cmpsitin % Physical character F Al N2 Fe2342- P25 LI Bulk dity g/cm3 AF-0 61.0 31.5 0.30 0.10 0.06 0.10 0.03 0.5 1.5 AF-1 60.0 31.0 0.40 0.30 0.10 0.6 0.04 1.0 1.3 AF-2 58.0 29.0 2.8 0.30 0.12 1.0 0.04 5.5 0.7 AF-3 58.0 29.0 2.8 0.35 0.12 1.0 0.04 5.5 0.7 Uses: Its mainly used as an adjusting agent fr electrlyte in aluminum smelting by fused salt electrlysis, als in ceramic glaze, catalyst and flux f nnferrus metal metallurgy etc. Brief Intrductin f the Prductin Technics In the Hydrgen Fluride Reacting Furnace which is heated utside, Vitril reacts with Flurite t create the Hydrgen Fluride Gas and Anhydrus Fluride Plaster by heating in the prcess f prducing Aluminum Fluride, then the Hydrgen Fluride Gas react with dry Aluminium Hydrxide in Fluidized Bed t create t Aluminum Fluride and water. Packaging packed in wven PP bags with plastic film inside. Each bag has net weight f 25kgs, 50kgs, 500kgs and 1000kgs.

Commodity: Sodium Hydrosulfite Other name: Synonyms: Sodium Hydrosulphite; Sodium Dithionite; Dithionous acid, Disodium salt; Sodium Sulfoxylate CAS No.: 7775-14-6 Molecular Weight: 174.10 Chemical Formula: Na2S2O4 Product Description Appearance: White, crystalline powder. Product Feature Odor: Slight irritative. Specific Gravity: Unavailable Solubility: Soluble in water. Density: 2.19 pH: 6-7 pH Test-Method: PH test paper. % Volatiles by volume @ 21C (70F): 0 Boiling Point: Not applicable. Melting Point: >300 C Decomposes. Vapor Pressure (mm Hg): No information found. Bulk Density: ~0.9 Evaporation Rate (BuAc=1): No information found. Application 1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching . 2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps. 3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products, 4. in mineral, the compound of thiourea and other sulphides. 5. as reducing agent in chemical industry. 6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms. Packaging 50kg/100kg net in iron drums with double PVC bags Product Specification/Models NDEX 90%, 88%, 85%. FOOD ADDITIVE Na2S2O4, 90%, 88%, 85%, Fe 20ppm ZincZnOther heavy metal calculated as Pb, 1ppm Water Insolubles05% Shelf Life(month)12

4-Hydroxybenzoic acid Chemical Name:4-Hydroxybenzoic acid Trade Name:p-oxybenzoic acid Molecular Formula:C7H6O3 Molecular Weight:138.12 CAS No.:99-96-7 Properties:white odorless crystalline powder, easily soluble in hot water and alcohols, aethers and acetone, slightly soluble in cold water and benzene, insoluble in carbon bisulfide; relative density is 1.46 Use: Can be used as antiseptic, intermediate of dyes, pharmaceuticals; as main material of liquid crystal polymers; as material of pesticide intermediate Specification Item Specification Polymer Grade Technical Grade Appearance white crystal powder white crystal powder Purity(on dry base) % 99.6 99.0 Melting Point 214-217 212-216 Odor odorless odorless Solubility Clear and transparent clear and transparent Loss on Drying % 0.20 0.50 Color(Pt-Co) 10 40 Ash % 0.02 0.15 Sulfate(SO42-) 0.01 0.05 Chloride(Cl-) % 0.005 0.02 Phe% 0.01 0.10 Salicylic Acid % 0.02 0.10 4-Hydroxyisophthalic Acid(HIPA) ppm 500 / Insolubles in Metha ppm 50 / Potassium(K+) ppm 5 / Sodium (Na+) ppm 5 / Iron (Fe) ppm 5 / Ca2++Mg2+ppm 5 /