Century Resources International Investment Limited - Catalysts And Absorbents

We are offering n-butyl bromidecas no.: 109-65-9molecular weight :137.03 molecular formula : c4h9br inspection results :analysis unit excellent standard first class standard appearance : colorless transparent liquid same assy: %(m/m) 99.5min same moisture mg/kg 100ppm max 1000ppm maxfree acid mg/kg 10ppm max 30ppm maxcolor apha 10ppm max 20ppm max.

We are offering n-propyl bromide1) appearance: colorless transparent liquid. 2) assay: 99. 5% min. 3) moisture: 100 ppm max. 4) iso-propyl bromide: 100 ppm max. 5) color: 10 apha max. 6) non-volatile residue: 10 ppm max. 7) free acid: 10ppm max. 8) ph: 6-7.

We are offering sulfonic acidclassification sulfonic acid cas no. 6192-52-5, 104-15-4 grade standard medicine grade purity p - toluene sulfonic acid , mianly used in pharmaceutic , agro-chemical, activitor , solidifying for painting/resin etc. detailed description spec. item/details mother solution crude commercial grade pharmaceutical grade refined grade reagent grade total acidity% 40-6090-9393/9595/97/97/9998/99 total acid %20-403-632/10.7/0.50.1 moisturewithout crystallization water%/4-124/23.52.31.9/0.9 fe++ ppm//70/5050/3030/2020/10 residue on ignition %///0.20.20.02 m.p.c /////105-107 ethanol solubility test ///qualified qualified qualified water solubility test ///qualified qualified qualified color yellow or black white, grey white white white white packing: for commercial, pharmaceutical and refined grade: in woven bag lined with film bag, net wt. 25kgs or 40kgs; for reagent grade: in cardboard drum lined with film bag, net wt. 25kgs.

We are offering citric acidwe are professional manufacturer of urotropine with many years of experiences of producing and exporting , we are becoming an group entity with manufacturing, foreign trade, international investment and so on . century resouces international investment limited is specializing in foreign trade and international investment . if you need this products, pls contct us by feedback and tell me your direct contact , many thanks ! here is specifications as below : quality standard of citric acid monohydrate itemunitbp93bp98usp24standard of enterprise description colourless crystals or white crystalline powder identification pass pass pass pass content%99.5-101.099.5-101.099.5-100.599.60-100.5 moisture%7.5-9.07.5-9.0d8.8d8.8 barium passpass/pass calciumppmd200d200/pass ironppmd50d50/d10 arsenicppmd1d1d3d1 heavy metalsppmd10d10d10d5 oxalateppmd350d100passd30 chlorideppmd50d50/d50 sulphateppmd150d150passd130 carbonisables not darker than the standard sulphated ash%d0.1d0.1d0.05d0.03 volatile organic impurities //passpass leadppm/d1/d1 aluminiumppm/d0.2/d0.2 bacteria endotoxiniu/mg/d0.5/d0.5