20.10.16

Advantages of DMDS dimethyl disulfide

Posted in General | 11:00

Dimethyl disulfide is a colorless oily liquid with a garlic-like odor. It is is the most common compound used for hydrocracking catalysts sulfiding in refineries. DMDS also could be used as an inhibitor in cracking coking of petrochemicals, and solvent, intermediate of pesticides. Another advantage of Dimethyl Disulfide is the by-product of its decomposition is simple methane that will not cause premature coking of the catalyst bed. But other sulfiding chemicals, such as polysulfides (TBPS), can cause excessive coking during the sulfiding process due to their decomposition by-products. Nanjing Xiancheng Chemical Industrial Co., Ltd was founded on the basis of strong R&D ability and advanced production equipments.At present, Nanjing Xiancheng is a leading and professional manufacturer specializing in the production and development of thio chemicals, fine chemicals and pharmaceutical intermediates, mainly produce dimethyl disulfide, dimethyl sulfate, methanesulfonic acid, methanesulfonyl chloride. Nanjing Xiancheng is not only the major qualified supplier of SINOPEC and PETRO CHINA, but also exports to many countries, establishing long term business relationship with the clients from Middle East, South East Asia, Europe and US. Our company is active in the seeking of support and cooperation with friends from all walks. Contatct us Nanjing Xiancheng Chemical Industrial Co., Ltd Tel: 0086-025-52397805 Fax: 0086-025-68650010 E-mail: info@dimethyl-disulfide.net
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11.10.16

The General Analysis of Preservatives

Posted in General | 10:43

Everybody knows Preservatives are chemical compounds that inhibit microbial growth. They are added to cosmetics, pharmaceuticals and foods, and to any composition that can serve as a breeding ground for microbes. Antibacterial and antifungal p-hydroxybenzoic acid esters, the six most commonly used forms of paraben are Methylparaben, Ethylparaben, p-Propylparaben, Isobutylparaben, n-Butylparaben and Benzylparaben. The goal of methylparabens and similar chemicals is to prevent the growth of bacteria and fungus. By limiting the growth of microorganisms, this ingredient helps preserve the integrity of skin care formulations for a longer period of time. Nanjing Jiancheng Chemical Industrial Co.Ltd founded in 1998, is one of the largest preservative manufacture in China. The Factory mainly produces all kinds of preservatives, which widely applied in cosmetics, medicine, and food industry. Our main products are Diazolidinyl urea, Imidazolidinyl urea, Methylparaben, Ethylparaben, Propylparaben, Butylparaben, Bronopol, Allantoin, Germall Plus, JMB, JMC, JMBP and so on. Our products are well exported to all over the world, such as North America, Europe and Southeast Asia. Contact Us Add: LI Shui Economic and Technological Development Area, Nanjing, Jiangsu. Tel: 0086 025 52397808 Fax: 0086 025 51192304 Email: info@paraben preservatives.com Web: www.paraben preservatives.com
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