Appearance:white granules or crystalline powder
CAS Number: 7783-35-9
Molecular Formula: HgSO4 or HgO4S
Molecular Weight: 296.66 g/mol
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Red mercury sulfide is used in oil painting, printing mud and China's famous vermilion carved lacquer, can also be used as ink, paint, rubber and other bright red color, or used in medicine. Black mercury sulfide is used in the pharmaceutical industry and as a pigment for paint, rubber, etc
[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
Benzoic Acid, E202,CAS no.65-85-0, food preservative, white granular or crystalline powder that is odorless, soluble in water, manufacturing process via chemical synthesis, toluene as raw material. Benzoic acid inhibits the growth of mold, yeast and some bacteria. Its salts such as Sodium Benzoate and Potassium Benzoate are also used as a food preservative. Benzoic Acid is used in the food and beverage industry as a preservative, specifically for use in frozen fish sticks, fish fillets, and fish paste products. Sodium Benzoate and Benzoic Acid are not intended for use in meat products. As an experienced Benzoic Acid manufacturer and supplier, we has been supplying and exporting Benzoic Acid 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. Benzoic Acid powder/granular food Specification ITEM STANDARD Characteristics White crystallized powder or granular Content >=% 99.5 Melting point 121-124 Loss on drying =< % 0.5 Sulfate =< % 0.1 Burnt Residue =< PPM 300 Chlorides =< % 0.02 Heavy metals(As Pb) =< PPM 10 Arsenic =
Carrageenan, E407, CAS no.11114-20-8, is a hydrophilic colloid extracted from certain red algae seaweed, it can be divided into K-type (Kappa), I-type (Iota) and L-type (lambda). Carrageenan is often used in food as the thickening, gelatinizing, suspending, emulsifying and stabilizing agents. Uses: in Jelly: jelly made by carrageenan is full of elasticity and has no off-water property. Uses in Soft Sweets:The transparent fruit sweets made by carrageenan have rich fruit flavors and moderate sweetness. tasty, non-stick to teeth. make the products taste well, full of elasticity, have a small viscosity and improve the stability. Uses in Ice Cream: enables ice cream to have a fine, smooth texture and a good taste. As an experienced Kappa & Iota Carrageenan manufacturer and supplier, we has been supplying and exporting Kappa & Iota Carrageenan 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. Carrageenan powder Specification Item Standard Appearance Cream white powder Particle Size 95% pass 120 mesh Total sulfate (%) 15~ 40 Loss on drying (%) 12 Water viscosity(1.5%, 75C, mPa.s) 20~ 200 Water gel(1.5%, 0.2%KCl, g/cm2) 1200 Transparence (%) 75 Arsenic (As) 3 mg/kg Lead (Pb) 5 mg/kg Cadium (Cd) 1 mg/kg Mercury (Hg) 1 mg/kg Total plate count 5000 cfu/g Yeast and moulds 300 cfu/g Salmonella spp./ 10g Negative Escherichia coli/ 5g Negative Pathogenic bacteria Negative
Sodium MethylParaben powder, E219, CAS no.5026-62-0, is the sodium salt of Methylparaben, manufacturing process via chemical synthesis. Hydroxybenzoic acid, methanol and sodium hydroxide as the raw materials. Function: anti-fungal and preservative. Sodium Methylparaben is a water-soluble antiseptic mainly used as a safe, high efficiency, broad-spectrum antibiotic for cosmetics. Sodium Methylparaben is in the preservatives paraben family with methylparaben, propylparaben, butylparaben, and ethylparaben used in the feed, food, pharmaceutical, cosmetic and personal care product industries. As an experienced Sodium MethylParaben manufacturer and supplier, we has been supplying and exporting Sodium MethylParaben 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 MethylParaben food grade Specification ITEM STANDARD RESULTS Appearance White crystalline powder complies Purity (on dry base)% 98.0-104.0 99.4 PH value(0.1%water liquor) 9.5-10.5 9.8 Sulfate(ppm) 300
Silicon Dioxide, E551, CAS no.7631-86-9, white powder. Silicon dioxide (SiO2), also known as silica, is a natural compound made of two of the earth's most abundant materials: silicon (Si) and oxygen (O2). Silicon Dioxide is a common additive in the production of foods, where it is used primarily as a flow agent in powdered foods, or to absorb water in hygroscopic applications used in silica gel, control moisture levels to avoid prevent certain goods from going bad. It is often used in cheese, fat spreads, confectionery, dried vegetables, etc. As an experienced Silicon Dioxide manufacturer and supplier, we has been supplying and exporting Silicon Dioxide 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. Silicon Dioxide Specification Item Standard Appearance White powder Purity (SiO2, %) 96 Oil absorption (cm3/g) 2.0~ 3.0 Loss on drying (%) 4.0~ 8.0 Loss on ignition (%) 8.5 BET (m2/g) 170~ 240 pH (10% solution) 5.0~ 8.0 Sodium sulfate (as Na2SO4, %) 1.0 Arsenic (As) 3mg/kg Lead (Pb) 5 mg/kg Cadium (Cd) 1 mg/kg Mercury (Hg) 1 mg/kg Total heavy metals (as Pb) 20 mg/kg Total plate count 500cfu/g Salmonella spp./ 10g Negative Escherichia coli/ 5g Negative
Potassium Sorbate, E202, food preservative, CAS no.24634-61-5, Chemical Formula C6H7KO2 the potassium salt of sorbic acid. Manufacturing process via chemical synthesis, sorbic acid and potassium hydroxide as raw materials. Function: inhibit the growth of mold, yeast, and microbes, in turn increasing shelf life of food products. Uses: in cheese, wine, yogurt, dried meats, apple cider, soft drinks, fruit drinks, and baked goods. It can also be used in dried fruit products. As an experienced Potassium Sorbate manufacturer and supplier, we has been supplying and exporting Potassium Sorbate 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. Potassium Sorbate Granular/powder food grade Specification ITEM STANDARD Appearance White to off-white granular or powder Heat Stability No change in colour after heating for 90 minutes at 105 Assay (%) 99.0 101.0 Loss on drying (%) 1 Content of sorbic acid 75% Min Alkalinity (as K2CO3, %) 1 Chloride (as Cl, %) 0.018 Aldehydes (as formaldehyde, %) 0.1 Sulfate (as SO4, %) 0.038 Arsenic 3 mg/ kg Lead 2 mg/ kg Mercury 1 mg/ kg Total heavy metals (as Pb) 10 mg/ kg Oxidizer None