Shanghai Sun-Shine Chemical Technology Co., Ltd.

1. Product name: Ammonium bisulfite solution 2. Molecular formula: NH4HSO3 3. Molecular weight: 99.10 4. Physical and chemical properties: light yellow liquid, with a little sulfur dioxide odor. Relative density (70%) : 1.4. 5. Technical index: Item Photographic grade Appearance clear light yellow liquid Content w/w % 68-72 pH value (stock solution 20C) 4.0-6.0 Iron (Fe) w/w % 0.001 6. Packing: 270kg plastic drum, 1.25MTS/IBC 7. Uses: in synthesizing dye intermediate, surfactant, herbicide, reducing agent in pharmaceutical industry, etc.

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 /

Commodity: Sodium Bisulfite Molecular Formula: NaHSO3 Molecular Weight: 104.06 Properties: White monoclinic crystalline powder with sulfur dioxide odor; relative density: 1.49; very easily soluble in water; can be decomposed when heated; slightly soluble in ethanol; aqueous solution is acidic; has strong reducing property; can be oxidized in the air or loose sulfur dioxide. Quality Standard: HG/T3492-80 Technical Indicator High-purity grade Acrylic grade Food grade Refined grade Industrial grade 1 NaHSO3 % 99.5 Insol. in water % 0.003, 0.005, 0.03, 0.04, 0.05 Chloride(Cl) % 0.003, 0.004 Iron(Fe) % 0.001 0.002 0.005 Heavy metal(Pb) 0.001 Arsenic(As) % 0.0001 Clarity test Qualified Use: It is used in the bleaching of cotton textiles; as reducing agent in dyes, paper-making, leather, chemical synthesis; in the manufacture of pharmaceutical intermediates, developer, food bleacher, antiseptic and anti-oxidants. Packing: In PP woven bag lined with PE bag; paper-plastic composite bag, and kraft paper bag etc. Net wt.: 25/50/1000 kgs/bag or upon clients' request.

Molecular Formula - C7H6O3 Molecular Weight - 138.12 Appearance - white crystalline powder Density - 1.44g/cm3 Melting point - 158-161 C Boiling point - 211 C (20 mmHg) Assay - 99.0% min Loss on drying - 0.5%max Application - Pharmaceutical Intermediate

For pharmaceutical intermediates 2-Cyanophenol Product name 2-Cyanophenol CAS NO.: 611-20-1 MF: C7H5NO Structural type: Properties: Grayish white to light brown powder.Items Specification Appearance White or off white powder Salicylnitrile content, % 98.0 Salicylamide content,% 0.5 water content,% 0.5

(1). Potassium hydroxide is widely used in the production of potassium carbonate including KHCO3, potassium soaps,detergents, fine cosmetic, potassium hydrogen phosphate, potassium permanganate, medical intermediate, liquid fertilizers, synthetic rubber, ABS resin, natural rubber emulsion, paper agent, fermentation, cresol, de-sulfuration in petroleum refining, bio-fuel and alkaline battery. (2). Potassium hydroxide can be used as a desiccant, sorbent, used for preparing potassium soap, oxalic acid and various salt, also used in electroplating, carving and so on. (3). Potassium hydroxide can be used for the production of potassium soap,alkaline battery, cosmetics in light industry (such as cream, cream and shampoo). (4). In the dye industry, Potassium hydroxide can be used for the production of vat dyes, such as vat blue RSN, etc.. (5). In the electrochemical industry, Potassium hydroxide can be used for electroplating, engraving, etc.. (6). In the textile industry, Potassium hydroxide can be used for printing and dyeing, bleaching and mercerizing, and used as the main raw material for synthetic fiber, polyester fiber manufacturing. (7). In addition, it is also used in metallurgical heating agent and leather fat, etc.. (8). Potassium hydroxide can be used as analytical reagent, reagent, carbon dioxide and water absorbent, and also used in pharmaceutical industry; (9). Potassium hydroxide can be used as the PH value of acid and alkali neutralization solution. (10). Potassium hydroxide can be used as the basic chemical reagent, carbon dioxide absorbent. saponification agents.

Raw material of washing product Sodium isethionate CAS 1562-00-1 Specification Appearance White crystalline Content 98.0% Water content min0.50% Sulfite min0.1% Ethylene glycol min0.1% PH(10%H2O) 7-11 Application: Sodium isethionate is an organic salt and an important intermediate for pharmaceuticals, cosmetics, and daily chemicals. The synthesis principle is the condensation reaction of sodium bisulfite and ethylene oxide to produce sodium isethionate.

At Prefine Chemicals, we distribute top-tier Meta Nitro Chloro Benzene and offer expert guidance to help you achieve optimal results. Our commitment to quality ensures you receive a reliable product you can depend on. (CAS.NO.-121-73-3) Prefine Chemicals guarantees a minimum purity of 99.00 % of Meta Nitro Chloro Benzene. APPLICATIONS Applications are: In Dye Intermediates and Pharmaceuticals. PACKAGING ISO Tanks 250 Kgs MS Drums MOQ 1x20'FCL SPECIFICATIONS Sr. No Characteristic Specifications 1. Physical Appearance Light Yellowish 2. Purity 99% w/w Minimum 3. PNCB < 1% w/w Maximum 4. Moisture Content 0.05% Max