Riboflavin (vitamin B2) Product Name: Riboflavin (Vitamin B2) CAS: 83-88-5 Molecular formula: C17H20N4O6 Molecular weight: 376.36 Melting point: 290 degrees C Specific optical rotation: -135(c=5,0.05 M NaOH) Boiling point: 504.93 degrees C (rough estimate) Density: 1.2112 (rough estimate) Refractive index: - 135 degrees (C = 0.5, JP Method) Storage Conditions: 2-8 degrees C Character: Light yellow powder Packaging: 25kg/barrel
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
P-Phenylenediamine Application:1,2,4-Trihydroxybenzene mainly used in the production of developers, polymerization inhibitors and infrared photographic thermosensitizers, as well as intermediates for dyes.Can be used to dye gold and black Cas No. 533-73-3 Specification: Appearance Light-brown powder Assay 98.0%min Packing 25kg/Drum Capacity: 3tons per month HS Code 2907299090
Sodium Chloride (NaCl), an ionic compound, is the major reason for salinity of sea water. Evaporation of sea water and mining of salt halite`s are the two major methods used, in the mass production of common salt. Sodium Chloride, as a chemical intermediate, is used in the production of a variety of chemicals. Industries, using this property of Sodium Chloride, are Chlor-alkali industry and Soda ash industry. Apart from the above mentioned end user applications, it is also used in medicine, pharmaceutical, food and agriculture industries. Further, different grades of sodium chloride are produced to support its vast end users. NaCl % 92.00 93.22 Water % 6.00 4.50 Water insoluble substance % 0.40 0.18 Ca Mg g/100g 0.60 0.45 SO4 g/100g 1.00 0.78
item value Classification Alkene & Derivatives CAS No. 79-01-6 Other Names Trichloroethylene MF C2HCl3 EINECS No. 201-167-4 Place of Origin zhe Grade Standard Agriculture Grade, Industrial Grade, Reagent Grade Purity 99.9% Appearance Clear liquid Application Solvents Brand Name arkool Model Number arkool Methylene Chloride Appearance Colorless Product name Methylene Chloride Packing 270KG Drum Supply Ability 20000 Metric Ton/Metric Tons per Year Other Names Dichloromethane Brand Name chemichase Net weight 270KG Methylene Chloride UN NO 1593 CLASS NO 6.1 APPLICATION methylene chloride for pharmaceutical intermediate
item value Classification Alkene & Derivatives CAS No. 79-01-6 Other Names Trichloroethylene MF C2HCl3 EINECS No. 201-167-4 Place of Origin zhe Grade Standard Agriculture Grade, Industrial Grade, Reagent Grade Purity 99.9% Appearance Clear liquid Application Solvents Brand Name arkool Model Number arkool Methylene Chloride Appearance Colorless Product name Methylene Chloride Packing 270KG Drum Supply Ability 20000 Metric Ton/Metric Tons per Year Other Names Dichloromethane Brand Name chemichase Net weight 270KG Methylene Chloride UN NO 1593 CLASS NO 6.1 APPLICATION methylene chloride for pharmaceutical intermediate
