Wuhan Hezhong Chemical Manufacture Co., Ltd

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 : Potassium sorbate Molecular formula : C6H7KO2 Molecule Weight : 15022 HS code : 29161900 CAS : 24634615�  Specifications appearance : White crystal granule Production Standard : FCCIV Content : 9801010 K2CO3 : 1 max Loss on drying : 1 max Chloride : 001 max Heavy metalsas : Pb 0001 max Packing in carton 25kgs net weight Quantity 14MT loaded into 1 x 20GP Excellent preservative properitesproperites Sorbic Acid Potassium Sorbate can restrain effectively the activity of mould yeast and aerophile bateria Restrain growth and reproduction of the pernicious micro organism as pseudomonas staphylococcus salmonella action to restrain growth is more powerful than killing Meanwhile it can not restrain useful microoranganim growth ad Anaerobicbearing barilli acidophil therefore to lengthen food store peroid and remain food original flavor The preservative efficiency of sorbic acid Potassium sorbate is 510 times sodium benzoate High safety Sorbic Acid Potassium Sorbate is one kind of nonsuturated fatty acid compounds It can be absorbed by human body rapidly then decomposed into CO2 and H2Omoreover no remaining in body ADI 025mgkg based on sorbic acid FAOWHO 1994 LD50 4920 mgkglarge mouse by mouth GRASFDA 1823640 1994 Its toxicity only 112 times table salts and 140 times sodium benzoate Good stability Sorbic Acid Potassium Sorbate is stable in sealed staus will not be decomposed until 270C It will be oxidized into colored ones and absorbing moisture in case exposed in air for a long time Wide application At the momentSorbic Acid Potassium Sorbate has been used extensively in food drinkvegetables in soy tabacco drugs cosmetics agricultural products forage and other domain Its applicaion should be wide and wide in the world As acidic preservative Sorbic Acid Potassium Sorbate is also used well in neutral foodph6065 The preservative efficiency of sodium benzoate will decrease clearly and have a bed taste while ph4 Applicaion flexibilitySorbic Acid Potassium Sorbate can be used by direct adding sprayingretting dry spraying using in packing material and other method

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.

Sodium Stearate, E470a, CAS No.822-16-2, food emulsifier, a safe sodium salt of stearic acid manufactured through chemical synthesis from Sodium Hydroxide and Stearic Acid. Sodium Stearate is a white powder that has a fatty odor and is greasy to the touch. Sodium stearate is mostly used to create soap bases. As an experienced Sodium Stearate manufacturer and supplier, we has been supplying and exporting Sodium Stearate for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Sodium Stearate Specification Sodium Stearate is a kind of white powder with fatty odor,gresy to touch,soluber in hot water and ethanol sodium stearate Sodium Content 7.5 ± 0.5% Free acid 1% Moisture 3% Fineness 95%MIN Iodine value 1 Heavy Metal% 0.001%

Sodium Acetate E262, CAS no.127-09-3, is a sodium salt of acetic acid, available as a white powder. Sodium Acetate Anhydrous is widely used as a preservative and flavor enhancer in food processing. Sodium acetate may be added to food as a seasoning, sometimes in the form of sodium diacetate, a one-to-one complex of sodium acetate and acetic acid. As an experienced Sodium Acetate manufacturer and supplier, we has been supplying and exporting Sodium Acetate for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Sodium Acetate Specification ITEM STANDARD Appearance White, odorless, hygroscopic powder Assay (Dry Basis, %) 99.0-101.0 pH (1% Solution, 25) 8.0- 9.5 Loss on Drying (120, 4 Hours, %) 1.0 Insoluble Matter (%) 0.05 Alkalinity (as NaOH, %) 0.2 Chlorides (Cl, %) 0.035 Formic acid, formates and other oxidizable (as formic acid) 1,000 mg/kg Phosphate (PO4) 10 mg/ kg Sulphate (SO4) 50 mg/ kg Iron (Fe) 10 mg/ kg Arsenic (As) 3 mg/ kg Lead (Pb) 5 mg/ kg Mercury 1 mg/ kg Heavy Metal (as Pb) 10 mg/ kg Potassium Salt (%) 0.025

Propyleneglycol alginate with best quality Cas 9005-37-2 Propyleneglycol alginate Basic information Product Name: Propyleneglycol alginate CAS: 9005-37-2 MF: (C9H14O70n MW: 0 Propyleneglycol alginate Chemical Properties Boiling point 886.32C (rough estimate) density 1.2096 (rough estimate) FEMA 2941 | PROPYLENE GLYCOL ALGINATE refractive index 1.7040 (estimate) solubility Soluble in dilute organic acids and water, forming stable, viscous, colloidal solutions at pH 3. Depending upon the degree of esterification, propylene glycol alginate is also soluble in aqueous ethanol/water mixtures containing up to 60% w/w of ethanol (95%). PH pH(1%, 25):3.5~4.5 CAS DataBase Reference 9005-37-2 EPA Substance Registry System Propylene glycol alginate (9005-37-2) Item Specifications Results Appearance White or light yellow powder Light yellow powder Degree of Esterification % 40% 86.20% Loss on drying % 20.0% 12.83% Insoluble ash% 1.0% 0.17% Viscosity 500-700 630mpa.s Particle size(80 mesh) 98% Passing rate 98% PH 2.8-4.5 3.47 Pb (mg/kg) 5.0

Advantage product with competitive price and stable supply ability 1.Product description Name: Glutaraldehyde 50% CAS NO. 111-30-8 Appearance: colorless or yellowish clear and bright liquid 2.characteristics and applications Glutaraldehyde is colorless or yellowish clear and bright liquid with slight irritating smell, and can be dissolved in organic dissolvent such as water, ether and ethanol. In water solution, Glutaraldehyde doesn't exist much in free state; instead, Glutaraldehyde makes appearance as hydrates with different forms.and most of them are hydrates with annular structure. Glutaraldehyde is reactive in property, and liable to polymerize and oxidize, which will react with compounds containing active oxygen and nitrogen. The reaction of the product with protein is mainly carried out between the carbonyl group of the former and the amino group of the latter. Among the known aldehydes, the product is one of the best cross-linking agents for proteins. Glutaraldehyde has a small influence on the activity of enzyme, and most of enzymes can be fixed under controlled condition, to cross-link without losing their activity. Contrbuting to its outstanding characteristics, the product has drawn special concern from people and been put at broad application.