Chemical Name: 2-Mercapto benzimidazole
Molecular Formula:C7H6N2S
Molecular Weight: 150.19
CAS NO: 583-39-1
Sodium metabisulfite is white or yellow crystalline powder or small crystal, with a strong SO2 odor, soluble in water, the aqueous solution is acidic, when contacted with strong acid, SO2 is released to form corresponding salts, and it is oxidized to Na2S2O6 when placed in the air for a long time. Therefore, the product cannot be stored for a long time. Above 150 degrees Celsius, SO2 is decomposed. Specification TEST ITEMS TEST STANDARD Na2S2O5 % 96.5 FERRON(Fe) % 0.005 WATER INSOLUBLE % 0.05 ARSENIC(As) % 0.0001 HEAVY METAL(Pb) % 0.0005 Application Use 1 Used as a coagulant in the rubber industry. Use 2 Used as chromatographic reagents, preservatives and reducing agents in the dye and pharmaceutical industries. Use 3 In the food industry, it is used as bleaching agent, preservative, bulking agent, antioxidant, color retention agent and preservative. Use 4 In the printing and dyeing industry, it is used as a dechlorination agent for cotton cloth after bleaching, and as a cotton scouring aid. Use 5 The tanning industry is used for leather processing. Use 6 The chemical industry is used to produce hydroxyvanillin, hydroxylamine hydrochloride, etc. The photosensitive industry is used as developer and so on.
atters needing attentionThis product is a polluting antioxidant. It is not suitable for white or bright-colored products because of its pollution to light-colored products by migration or contact. Packaging and storage:packaging can be done according to customer requirements. BLE200Kg/bucket BLE-Cã??BLE-Wã??BLE-75:Paper plastic composite bag, net weight 25kg. Store in a cool, ventilated and dry place. For more information about other types of rubber antioxidant,please send message to Email.
White crystal powder without any visible foreign matters. Soluble in water, slightly soluted in alcohol, dissolvable in benzene, ether and petroleum ether etc., Esters will be formed by reaction with common organic acid; No reaction take place when it is heated with dilute caustic solution. application Pentaerythritol is used in the manufacture of Alkyd resins, fatty acid rosin and tall oil esters and to make paint and coatings, printing ink, coating adhesives, explosives, sealants, varnish, lacquer, vinyl chloride, synthetic rubber and miscellaneous including Pentaerythritol tetranitrate (PETN), urethane coatings, flame retardant paints, polyvinyl chloride stabilizers, olefins antioxidant and Pentaerythritol triacrylate.
Chemical Name: 2-Mercaptobenzimidazole Specification: Item Powder Oiled powder Appearance White powder Initial M.P. �¿C â?¥ 290.0 290.0 Loss on drying % â?¤ 0.30 0.40 Ash % â?¤ 0.30 0.40 Residues on 150�¼m sieve, % â?¤ 0.10 0.10 Additive, % \ 1.0-2.0 Properties: White powder. No smell but taste bitter. The density is 1.42. Soluble in alcohol, acetone and ethyl acetate, Slightly soluble in petroleum ether, CH2CL2, Insoluble in CCL4, benzene and water. Good stabilization stroge ability. As second anti-degradant without poison. Application: A non-staining secondary antioxidant for natural rubber, CR, SBR, NBR and EPR, etc. Especially effective against heat oxidation in combination with amine. Packaging: 25kg; plastic woven bag, paper with plastic film bag, kraft paper bag. Storage: Keep container tightly closed in a cool, well-ventilated place. The recommended maximum storage life is 2 years when stored under normal conditions.
At Prefine Chemicals, we distribute top-tier Para Amino Phenol offers expert guidance to help you achieve optimal results. Our commitment to quality ensures you receive a reliable product you can depend on. (CAS.NO.-123-30-8) Prefine Chemicals guarantees a minimum purity of Min. 99.00 % of Para Amino Phenol. APPLICATIONS Applications are: Dyes Rubber Antioxidants Corrosion Inhibitors PACKAGING 25 Kgs HDPE Bag With Liner MOQ 1x20'FCL SPECIFICATIONS Sr.No Characteristic Specifications 1. Physical Appearance White Solid Powder 2. Purity 99.50 3. Formula C6H7NO
(n-phenyl-1-naphthylamine) 1f=molecular formula:c16h13n 2.Spccification:(gb8827-88) Item spccification Appcarance yellow or purple flake Solidifying point, 0f¦fª 53.0 Free amine(phenylamine), %f_ 0.20 3 properties:yellow or purple flake. Melting point 62f¦, flash point 188f¦, gravity 1.16f+1.17. Little soluble in water, but soluble in acetone, ethyl acetate, benzol, tetracol, alcohol and gasoline. Polypropyrene knitted bags lined with polyethylene bags. Net weihgt 25kg per bag.
CAS 74-31-7 HS : 2921590090 25kg/drum, 200kg plastic drum, 200kg steel drum; 1000kg IBC, or as per your requirement. It can be used as the antioxidant to prolong the storage shelf life of the solid propellant. It has also been used for those natural, styrene-butadiene, acrylonitrile-butadiene, cis-butadiene, butyl, hydroxyl termindated polybutadienen, polyisoprene rubber or latex to possess performances, such as, good flexible and crack resistance, enhancing the tensile stress, strengthening the defending function to hot and oxygen, ozone and some harmful metals like copper, manganese. It has no influence on vulcanization of those rubbers. It can resolve aging problem existing in the deep-color rubber products while antioxidant H is used together with antioxidant D. Moreover, it can also be used as the hot and oxygen stabilizer for those engineering plastics, such as polyethylene, polypropylene, polyamide, polyformaldehyde and etc to improve their climate-resisting performance. The suggested dosage is 0.2-0.3%.
This product is one of the few kinds of antioxidant, which is non-toxic, tasteless, light colored. Widely apply in each kind of elastomer. It can be used in polyethylene, polypropylene, polyvinyl chloride and other plastic masterbatch. It may use as the urethane foam as well as the electric wire, the electric cable, packaging material for food, the adhesive antioxidant, especially for heat-resisting , lightfastness, ageing resistance in the neoprene colored cable sheath, antioxidant KY-445 is are remarkable. It can use as lightfastness and ageing resistance antioxidant in the polyether and foam, and also as lubricant antioxidant. It's specially effective to protect neoprene, polyacrylate rubber, polyether polyol and so on from ageing resistance because of high fever, light and some other factors. It has good cooperative effect with the sulf-antioxidant.
Hydroxylamine Sulfate is used in organic synthesis to convert ketones and aldehydes to oximes and acid chlorides to hydroxamic acid. It is an effective reducing agent and used as a catalyst, copolymerization inhibitor (in polymerization processes), and swelling agents. Hydroxylamine sulfate is used in the production of anti-skinning agents, , rubber, textiles, plastics and detergents. It is a radical scavenger that terminates radical polymerization reactions and serves as an antioxidant in natural rubber. Hydroxylamine Sulfate is a starting material for some insecticides, herbicides and growth regulators. It is used in photography as a stabilizer for color developers and as an additive in photographic emulsions in color film. Specifications Appearance: White or colorless crystal Assay: 99.0% Min Loss on drying: 0.01% Max Chloride (mg/kg): 0.0005% Max Iron (mg/kg): 0.0002% Max Heavy metal: 0.0003% Max Packing 55.12 LB bag, 40 bags per pallet DOT Transportation UN No.: 2865 Proper Shipping Name: Hydroxylamine Sulfate Hazard Class: 8 Packing Group: III