PT. Dover Chemical

Item Index Appearance White Granule/Prills Content 92%-98% Acidity(Formic acid) 0.03% Methanol Content 1% pH 3.0-7.0 Iron Content 0.0002% Ash 0.05%

S.N CAS No. Item 1 100-21-0 Terephthalic acid 2 67763-03-5 Silsesquioxanes 3 9003-01-4 Acrylic acid 4 1333-86-4 Carbon black 5 80-62-6 Methyl methacrylate 6 61788-97-4 Haloperidol 7 75-38-7 1,1-difluoroethylene 8 100-42-5 Styrene 9 9002-84-0 Poly(tetrafluoroethylene) 10 124-04-9 Adipic acid 11 107-21-1 Ethylene glycol 12 126-30-7 Neopentyl glycol 13 85-44-9 Phthalic anhydride 14 106-89-8 Epichlorohydrin 15 9003-08-1 Amino resin 16 9006-03-5 Chlorinated rubber 17 13463-67-7 Titanium dioxide 18 12227-89-3 Iron Oxide Black 19 922-67-8 Methylpropiolate 20 538-24-9 Trilaurin 21 9011-05-6 Urea formaldehyde 22 79-41-4 Methacrylic acid 23 1314-13-2 Zinc oxide 24 80-05-7 Bisphenol A 25 121-91-5 Isophthalic acid

1 101-68-8 4,4'-Diphenylmethane diisocyanate 2 9016-00-6 Poly(dimethylsiloxane) 3 26471-62-5 Tolylene diisocyanate 4 100-42-5 Styrene 5 141-32-2 Butyl acrylate 6 107-13-1 Acrylonitrile 7 106-99-0 Buta-1,3-diene 8 75-38-7 1,1-difluoroethylene 9 9-38-9 Chlorotrifluoroethylene 10 111-44-4 2,2'-Dichlorodiethyl ether 11 1187-93-5 Trifluoromethyl trifluorovinyl ether 12 21645-51-2 Aluminum hydroxide 13 116-14-3 Tetrafluoroethene 14 116-15-4 Hexafluoropropylene 15 126-99-8 Chloroprene 16 103-11-7 2-Ethylhexyl acrylate 17 140-88-5 Ethyl acrylate 18 78-79-5 Isoprene 19 96-33-3 Methyl acrylate 20 1300-21-6 Dichloroethane

Commodity: Caustic Soda Flakes Caustic Soda Pearls / Bead / Prill / Granule Caustic Soda solid Molecular formula: NaOH Molecule Weight: 40 H.S code: 28151100 CAS: 1310-73-2 UN number 1823 Dangerous Class 8 We use rich natural gas resources and its strategic of liquid alkali procurement, storage, transport conditions, gradually formed transportation and sale of liquid alkali, production and sales base and external processing of flake caustic, solid caustic soda, granular caustic soda, which provide ideal condition and environment for domestic and foreign trade. Typical Specifications: Indexes Purity NaCl Na2CO3 Fe2O3 99 99 0.15 0.9 0.003 98 98 0.15 0.5 0.002 96 96 2.8 0.85 0.005 Used as a raw material in the manufacture of soaps ,detergent, textiles and paper ,and likewise ,in water softening and treatment, drilling mud in oil field, refining petroleum products, and washing beer and soft drink bottles, in food and drug industry ,it is used as acidity regulator, alkali, and so on. Packing :Flake/pearl:25kg/plastic woven bag with PE inner Solid :200kg/ iron drum Loading weight in 1 x 20fcl: 27mt

[Technical Indicators] 1. Industrial grade Indicator Name/Indicator Value Powdered Products (F) Needle Products (Z) Level 92 Level 93 Level 95 Level 92 Level 95 Appearance White or light yellow powder, without caking White or yellowish needle-like, without lumps Active matter,% 92.0 93.0 95.0 92.0 95.0 Free oil,% 1.2 1.2 1.2 2.0 1.5 Inorganic salt,% Sodium sulfate 5.8 4.8 2.5 4.8 2.5 Sodium chloride 0.15 0.15 0.15 0.15 0.15 Moisture,% 2.0 2.0 2.0 4.0 3.0 PH value (1% aqueous solution) 7.5-9.5 7.5-10 Whiteness (WB), 90 2. Toothpaste grade Indicator Name/Indicator Value Toothpaste Grade (Y) (I) Level (II) Level (III) Level Appearance White or yellowish powdery or needle-like, without caking Active matter,% 95.0 93.0 93.0 Free oil,% 1.2 1.2 1.2 Inorganic salt,% Sodium sulfate 2.5 3.2 4.0 Sodium chloride 0.15 0.15 0.15 Moisture,% 2.0 2.0 3.0 PH value (1% aqueous solution) 8-9.3 8-9.3 8-10 Whiteness (WB), 90 Foaming capacity/mm 180 Heavy metal (as Pb)/ (mg/Kg), 15 Arsenic content (as As)/ (mg/Kg), 3 Total bacterial count/ (CFU/G), 100 Total number of molds and yeasts/ (CFU/G), 100 Fecal coliforms/G Not to be detected Pseudomonas aeruginosa/G Not to be detected Staphylococcus aureus/G Not to be detected   3. Latex grade Indicator Name/Indicator Value Latex grade (powder, needle, liquid) Aggregate grade Seed level Liquid K12 Appearance White or yellowish powdery or needle-like, without caking Light yellow transparent liquid Active matter,% 94.0 92 28.5-30.5 Free oil,% 0.8-1.0 1.5-2.0 1.5 Inorganic salt,% Sodium sulfate 3.0 3.0 1.5 Sodium chloride 0.15 0.15 0.05 Moisture,% 3.5 3.5 - PH value (1% aqueous solution) 8-10 7.5-9.5 Whiteness (WB), 90 - Color Klett (30% active), - 60 4. Reagent grade Indicator Name/Indicator Value Reagent grade Level 99% Level 97% Appearance White flaky crystals White powder Solubility (1%, alcohol) Completely dissolved Solubility (10%, aqueous solution) Completely dissolved Chroma APHA (20%, deionized water), 15   - Active matter (%), â?¥ 99 (on dry basis) 97 Petroleum ether soluble matter (%), 0.2 1.0 Sodium sulfate (%), 0.5 1.5 Sodium chloride (%), Moisture (%), 1.0 2.0 PH value (1% aqueous solution) 6.0-8.0 6.0-11 Phosphate, 1ppm - Lead (Pb), 2ppm Iron (Fe), 1ppm Nitrogen, 5ppm - Arsenic (As), 0.1ppm Fraction content (%), 99.0 Absorbance (3%, deionized water) 230nm 0.4 260nm 0.1 280nm 0.1 - 410nm 0.01

English name: Calcium Nitrite Molecular formula: Ca(NO2)2 Molecular weight: 132 CAS NO. 13780-06-8 HS CODE: 28341000 UN NO.: 2627 5.1 type oxidizing agent Properties: White powder without crystal water. It is tasteless and toxic. Easily in water and presents light yellow solution. Specifications: Item Superior grade First grade Second grade Calcium Nitrite[Ca(NO2)2 as dry basis]% 94 92 90 Calcium Nitrate[Ca(NO3)2 as dry basis]%

Commodity:Sodium persulfate Molecular Formula : Na2S2O8 Molecular weight : 238.13 Description Sodium persulfate is a white,crystalline,odourless salt.It is used as initiator for the Polymerization of monomers and as a strong oxidizing agent in many applications.It has the particular advantage of being almost non - hygroscopic,of having a particularly good storage stability as a result of its extremely high purity and of being easy and safe to handle. Transportation Road/Rail transport : GGVS,GGVE,ADR,RID/CLASS 5.1 Sea transport : GGV Sea/IMDG code : CLASS 5.1 Page 5185,UN no.1505 Water hazards class 1(slight water hazard) All information is given in good faith,but without warranty,since the conditions of use are outside our control. Verification by the user is recommended.Freedom from patent restriction cannot be assumed. Package (1) In 25kgs net multiple paper bags with one PE bag inner (2) In 25kgs net PE bags (3) In 25kgs net woven bags with two PE bags inner (4) In 1000kgs net big woven bags with one PE bag inner The above package is also with a pallet 1000kgs each. Storage NPS(SPS) is not combustible but assists combustion materials due to release of oxygen.Provided it is stored under appropriate condition.It must be stored dry in closed containers and protected from direct sunlight,heat and humidity.Impurities such as dirt,rust or traces of metal and reductants may cause catalytic decomposition.The product as supplied or in solution needs to be handled with appropriate care.The eye,skin and clothes must be protected when working with NPS(SPS) as damp powder or aqueous solution has a bleaching and slightly corroding effect. Application Polymerization : Initiator for the emulsion or solution Polymerization of acrylic monomers,vinyl acetate,vinyl chloride etc.and for the emulsion co-polymerization of styrene,acrylonitrile,butadiene etc. Metal treatment : Treatment of metal surfaces(e.g. in the manufacture of semiconductors; cleaning and etching of printed circuits),activation of copper and aluminium surfaces. Cosmetics : Essential component of bleaching formulations. Paper : modification of starch,repulping of wet - strength paper. Textile : Desizing agent and bleach activator - particularly for cold bleaching.(i.e.bleaching of Jeans). Others : - Chemical synthesis - Water treatment(decontamination) - Waste gas treatment,oxidative degradation of harmful substances(e.g.Hg) - Disinfectant ITEMS SPECIFICATIONS Appearance white crystalline salt Assay 99.0% w/w min Active oxygen 6.65% w/w min Chloride and chlorate(as CL) 0.005% w/w max Ammonia (NH4) 0.05% w/w max Manganese(Mn) 0.0001% w/w max Iron(Fe) 0.001% w/w max Heavy metals(as Pb) 0.001% w/w max Moisture 0.05% w/w max Decomposition of the product as supplied at above 65C Recommended storage temperature Normal Temperature Storage stability as from date of delivery 12 months