buy Ascorbic acid |
| 03-12 14:44:39 来源： 作者： |
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buy Ascorbic acid Subject: I want to buy Ascorbic acid Dear Sir, We require Ascorbic acid puriss and Azomethine, GR for analysis, detail as below: 1). Ascorbic acid puriss Acide L (+) --ascorbinque, (victamin C) C6H8O6, M=176.2 g/mol, CAS No. 50-81-7, EC No. 200-066-2, for R&D use only, not for drug or household. Identity:IR-assay (oxidimetric) min 99.7% melting range (decornp) 190-192 celsius Specitication: rotation ( 20/D, c=10 in H2O) +20.5~+21.5 degree loss on drying (105 celsius) max 0.1% sulfated ash: max0.05% PH 5%, 20 celsius: 2.2~2.5 As max: 0.0001% Cu max: 0.0005% Fe max: 0.0002% Pb max: 0.0005% Zn max: 0.001% heavy metel (as Pb): max 0.001% Chloride (CI): max 0.005% Sulfate( SO4): max 0.002% Oxalic acid: max 0.2% Appearance of solution: complying 2). Azomethine, GR for analysis (reagent for determination of boron), C17H12NNaO8S2, M=445.40g/mol, Identity:IR-spectrum Specification: Absorptivity A 1% /1cm (236nm; 0.05%; 1cm, butter, solution: PH 5.1) Loss on drying (105 celsius): max; 20% suitabiligy for photometric (determination of boron) Can you please offer CIF Limassol, Cyprus or FOB quotation, is it possible for us get small sample at first? Best Regards Tomy HU Caramondani Group, Ningbo Office Add: North of Kylin Building, No.1501 North Tiantong Road, Ningbo, Zhejiang, China Tel: 0086-574-88183326 Fax: 0086-574-88183325 E-mail: holatomy@gmail.com http://www.caramondani.com.cy Sender's IP Address:125.114.119.* Sender's IP Country:China Although Alibaba.com aims to provide you with accurate Sender Details, we are not able to fully guarantee the accuracy of every Sender's IP information. Alibaba.com is neither responsible nor liable for any of the above information. Sender's contact informationContact Name: Ms tomy hu Company: Caramondani Group, Ningbo Office Address: Kylin Building Country/Region: China Business Email: tomycyprus@inbox.com Telephone: 86-574-88183326 Fax: 86- |
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