21.07.16

The General Analysis of Trimethylsilyl Cyanide

Posted in General | 10:46

Trimethylsilyl cyanide is clear colorless to yellow liquid with a boiling point of 114–117 °C, which was first synthetized by the reaction of trimethylsilicon halides TMSX and AgCN in 1952. TMSCN is a versatile reagent that can be used in several different reactions, but it is generally used in nucleophilic additions to aldehydes and ketones. It reacts with aldehydes and ketones to give cyanohydrin-TMS ethers which can be reduced to β-aminoethyl alcohols. Trimethylsilyl cyanide((CH3)3SiCN) is used for derivatization of complex metabolite mixtures by GC-MS and used as cyanide source in enantioselective organocatalytic Strecker-type reaction of aliphatic N,N-dialkylhydrazones. Xiangbang Sodium Methoxide Co.Ltd is one of the largest domestic manufacturers of sodium methoxide and sodium methylate solution in China, Our company is one of the "National New & High Technological Enterprises" and "Backbone Enterprises of Fine and Special Chemicals Industrial Base", one of the National Torch Projects. In the meantime, Xiangbang attaches great importance to the quality of products and services, and makes efforts to combine the technology and various resources effectively in order to improve the producing processes and the quality of products continuously, and to satisfy the demands of all users in every aspect. If you want to know more about Trimethylsilyl Cyanide, please come and click our website. We promise you will get reply within 24 hours. Contact Us Xiangbang Sodium Methoxide Co.Ltd AD: CAOMIAO TOWN, DAFENG DISTRICT, JIANGSU, CHINA TEL: 0086-25-52397805 FAX: 0086-25-68650010 EMAIL: info@sodium-methoxide.net
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13.07.16

Production of Solvent Black 34

Posted in General | 10:46

Because we all know that Solvent Black 34 is mainly applied in coloring plastics, printing ink and writing ink. The purpose of solvents used in paints is to reduce the coatings film forming matter is viscosity, convenience of construction, in order to get uniform protective coating. 2-amino-4-(5)-Nitro-phenol and 2-naphthol as raw material, first of 2-amino-4-(5)-nitrophenol diazotization, coupling of 2-naphthol, subsequently joining chrome alum complex, dry original dye was obtained by filtration, drying and crushing. Original dye powder dissolve in ethylene glycol monoethyl ether and ethanol mixed solvent, dye solution was obtained by sedimentation filter package. TongShun Chemical Co, Ltd, set up in 2008, is a modern enterprise manufacturing solvent dyes, fluorescent pigments dyes and dyestuff intermediates. Currently, our products are exported to dozens of countries abroad. Our solvent dyes and pigments are widely used in plastic, fiber masterbatch, paint, printing ink, etc.; most of our products comply with relative EU legislation in regard to heavy metal and aromatic amine. Quality and innovation are what we guarantee to achieve customers’satisfactions. Contact us TongShun Chemical Co.,Ltd Tel: 0086 25 52397805 Fax: 0086 25 68650010 P.C.: 211100 Email: info@solvent dye.com Web: www.solvent dye.com Twitter: solventdye01
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05.07.16

Advantages of Indicating silica gel

Posted in General | 10:26

Silica gel has the ability to adsorb large amounts of water, as well as other substances, including aromatics, C12, CO2, and HC1. It controls moisture without corroding other substances or introducing toxicity, maintaining a consistent shape and size and not reacting with any other substances. Indicating silica gel is very similar with normal silica gel beads, but it is chemically inert and the color-changing ability to indicate the amount of moisture it already absorbed. By removing moisture, indicating silica gel, granular or beaded, can limit the rate at which mold can grow, thus slowing or preventing spoilage and other kinds of damage. Fenglong Chemical Co., Ltd is a professional SILICA GEL supplier. Our silica gel manufacturing plant is located in Maanshan with manufacturing capacity of more than 500-MT silica gel per year. We are manufacturing Indicating silica gel & Non-Indicating type of SILICA GEL in all grades such as blue silica gel, orange silica gel and basic silica gel such as type A silica gel , type B silic gel ,type C silica gel and another special silica gel Column chromatography silica gel. Contact us: Nanjing Fenglong Chemical Co., Ltd Add: Jiangning Area, Nanjing City, China Tel: 0086-25-52397808 Fax: 0086-25-68650010 P.C.: 211100 E-mail: info@silicon-gel-china.com or 812985219@qq.com Website: www.silicon-gel-china.com
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