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Your Company Profile
| Company Name | Dongying Worain Chemical Industry Co., Ltd. |
| Company Profile | Worain Chemistry Group (WRCG) is one of the main chemistry distributors in Hongkong, which was established in 2007. The Group set up branches over the country, as Worain Chemicals Trading Company in Hongkong and Worun Chemicals Company Ltd in London, both these branches in charge of the importing and exporting business. At the meantime, Worain Chemical Co. (Dongying), Ltd in ShanDong Province handling the domestic business for the group. WRCG is specialized in basic chemicals, fine chemicals, flavors & fragrances, also food additive, which mainly import from the main European brand chemical companies ie. BASF and Givaudan. At present, our group deal with more than 20 series kinds of products, these products has been sold to Germany, Belgium, America, India and Southeast Asia and WRCG occupied more and more domestic and overseas market in this industry. WRCG continues to expand and develop and dedicated to offer customers high quality commodity, steady and stable supply chain. And we also try our best to become one of your most professional and reliable partners in your business. WRCG sincerely hopes establish cooperative relationship with customers home and abroad, for promoting common development. |
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Welcome Anne Liu
View Your Product
| (1) Dyes And Chemicals | |
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| Product Title : | Propylene Glycol |
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| Product Description | Propylene glycol is scientifically named as “1,2-propanediol”, and has a chemical formula of CH3CHOHCH2OH and a molecular weight of 76.10. There is a chiral carbon atom in the molecule. Its racemate is a hygroscopic viscous liquid and is slightly spicy. It has a specific gravity of 1.036 (25/4 °C), a freezing point of-59 °C, and a boiling point of 188.2 °C, respectively 83.2 °C (1,333 Pa). It is miscible with water, acetone, ethyl acetate and chloroform, and is soluble in ether. It is soluble in many essential oils, but is not miscible with petroleum ether and paraffin oil. It is relatively stable to heat and light, and is more stable at low temperatures. Its L-isomer has a boiling point of 187 to 189 °C and a specific optical rotation [?] of D20-15.0°. It can be oxidized at high temperatures to propionaldehyde, lactic acid, pyruvic acid and acetic acid. |
| (2) Dyes And Chemicals | |
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| Product Title : | Seller |
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| Product Description | Dimethyl carbonate is briefly referred to as DMC. At room temperature, it is a colorless and transparent liquid with a pungent odor with a relative density (D204) of 1.0694, a melting point of 4 °C, boiling point of 90.3 °C, the flash point being 21.7 °C (opening) and being 16.7 °C (closed ) and the refractive index (nd20) being 1.3687. It is flammable and non-toxic and is miserable with almost all organic solvents in any proportion with alcohols, ketones and esters. It is slightly soluble in water. It can be used as the methylating agent. Compared with other methylating reagent such as methyl iodide and dimethyl sulfate, dimethyl carbonate is less toxic, and biodegradable. The past method of making dimethyl carbonate with phosgene as raw materials is not frequently used. Instead, people now adopt the catalytic oxidative carbonylation of methanol in the presence of oxygen which is more environmentally friendly than the previous method. Dimethyl carbonate can enable to methylation of aniline, phenol and carboxylic acid. However, many reaction demands high-pressure. DBU can be added during reflux of DMC for catalyzing the methylation of carboxylic acid with dimethyl carbonate. |
| (3) Dyes And Chemicals | |
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| Intermediates | |
| Product Title : | Seller |
| Pattern | |
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| End Use | |
| Product Description | Dimethyl carbonate is briefly referred to as DMC. At room temperature, it is a colorless and transparent liquid with a pungent odor with a relative density (D204) of 1.0694, a melting point of 4 °C, boiling point of 90.3 °C, the flash point being 21.7 °C (opening) and being 16.7 °C (closed ) and the refractive index (nd20) being 1.3687. It is flammable and non-toxic and is miserable with almost all organic solvents in any proportion with alcohols, ketones and esters. It is slightly soluble in water. It can be used as the methylating agent. Compared with other methylating reagent such as methyl iodide and dimethyl sulfate, dimethyl carbonate is less toxic, and biodegradable. The past method of making dimethyl carbonate with phosgene as raw materials is not frequently used. Instead, people now adopt the catalytic oxidative carbonylation of methanol in the presence of oxygen which is more environmentally friendly than the previous method. Dimethyl carbonate can enable to methylation of aniline, phenol and carboxylic acid. However, many reaction demands high-pressure. DBU can be added during reflux of DMC for catalyzing the methylation of carboxylic acid with dimethyl carbonate. |
Welcome Anne Liu
Your Contact Details
| Contact Person | Anne Liu |
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| Country | China |
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| [email protected] | |
| Contact No | 8618562960921 |
| Website |
Dongying Worain Chemical Industry Co., Ltd.
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