基本的碳酸锌---橡胶年级

Basic Zinc Carbonate Molecular Formula: ZnCO3.2Zn(OH)2.H2O Proportion: 4.42-4.45 Characters: amorphous white powder, inodorous, tasteless. Proportion: 4.42-4.45. Indissoluble in water & alcohol, slightly soluble in ammonia, soluble in diluted acid and sodium hydroxide. Application: Used as corrosion inhibitor & desulphurization agent in oil exploitation, activator and desulphurization agent in chemical fertilizer production; also widely used in paint and other chemical industries. Itisusedinpigments,ceramicsandthemanufactureofcrepeandsponge,beingparticularlysuitablewhenlowpigmentationisdesired.Ifhasotherusesinthepaintindustryandasanactivatorintherubberindustry. Our advantages: strong production capacity: about 800 tons per month highest purity, lowest content of heavy metal, best package in China, lowest price on the basis of good quality Certificate: ISO9001:2000. Our main markets: Iran, India, Indonesia, Russia, Brazil, USA, Greece, Italy, South Africa, Colombia, Canada, etc. Payment term: 30% deposit in advance, the balance to be paid against B/L faxing; L/C. Price Validity: 1 week Delivery term: 1-2 weeks after receiving deposit Sea freight: As freight always keeps fluctuating, we prefer to finalize this rate before shipment. Chemical industry Standard of People’s Republic of China HG/T2523-93 ITEMSINDEXHigh-ClassFirst-ClassQualifiedMain component (Zn) (%) ≥ 57.557.056.5burn loss 25.0-28.025.0-30.025.0-32.0Heavy metal (Pb) ≤ (%) 0.040.050.05moisture ≤ 2.53.55.0SO4(%) ≤ 0.600.80-Finess degree (by 74um sift net) ≥ 95.094.093.0Cd content (%) ≤ 0.10--