Weicheng Chemical Co. Ltd

huhhot, China

Technical Indexes:1. Term1: PURITY: 98% MinNa2CO3: 0.3% MaxNaOH: 0.8% Max NaCl: 0.01% Max MOISTURE: 0.005% Max 2. Term2: PURITY: 97% MinNa2CO3: 0.5% MaxNaOH: 1.00% MaxNaCl: 0.01% MaxMOISTURE: 0.005% Max 3. Term3: PURITY: 96% MinNa2CO3: 0.5% MaxNaOH: 1.5% MaxNaCl: 0.01% MaxMOISTURE: 0.005% Max

Technical Indexes:Content: Red110: 96%minRed130: 96%minRed190: 96%minYellow311: 86%minYellow313: 86%minBlack780: 90%minMoisture:Red110: 1.0%maxRed130: 1.0%maxRed190: 1.0%maxYellow311: 1.0%maxYellow313: 1.0%maxBlack780: 1.0%max Volatile(105C)Red110: 0.8%maxRed130: 0.8%maxRed190: 0.8%maxYellow311: 0.8%maxYellow313: 0.8%maxBlack780: 0.5%max Water Soluble %(M/M) Red110: 0.3%maxRed130: 0.3%maxRed190: 0.5%maxYellow311: 0.3%maxYellow313: 0.3%maxBlack780: 0.5%max pH valueRed110: 5-7Red130: 5-7Red190: 5-7Yellow311: 4-6Yellow313: 4-6Black780: 5-8 Oil AbsorptionRed110: 15%-25%Red130: 15%-25%Red190: 15%-25%Yellow311: 25%-35%Yellow313: 25%-35%Black780: 15%-25% Tinting StrengthRed110: 95%-105%Red130: 95%-105%Red190: 95%-105%Yellow311: 95%-105%Yellow313: 95%-105%Black780: 95%-105%

Technical Indexes:Term1: Zinc Oxide (by dry product): 98%min; Lead Oxide (PbO): 0.08%max; Cadmium Oxide (CdO): 0.002%max; Copper Oxide (CuO): 0.001%max; Manganese (Mn): 0.004%max; Zinc:None;Hydrochloric Acid Insolubles: 0.06%max; Loss on Ignition: 0.6%max; Water Solubles: 0.7%max; Sieve Residue (45 um) Wet Sieving: 0.1%max; Moisture Content: 0.5%max; Term2: Zinc Oxide (by dry product): 95%minLead Oxide (PbO): 0.09%maxCadmium Oxide (CdO):0.002%maxCopper Oxide (CuO): 0.004%maxManganese (Mn): 0.005%maxZinc: NoneHydrochloric Acid Insolubles: 0.08%maxLoss on Ignition: 0.8%maxWater Solubles: 0.8%maxSieve Residue (45 um) Wet Sieving: 0.15%maxMoisture Content: 0.7%max