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| Hunan Xiangwei Co., Ltd | ||||||
| About this company : a large-scale integrated complex of chemical industry and chemical fiber, which started to build in 1971 and came into production in 1978 with 130 million of initial investigation. | ||||||
| Contact : Marcia Shu | ||||||
| Headquarters : Xupu County, Huaihua, Hunan, 419323, China | ||||||
| Phone : 867453587720, Fax : 867453587720 | ||||||
| Website : Log on to trade instantly , Email : Log on to trade instantly | ||||||
 | Polyvinyl Alcohol 17-99 Quality Requirements Number Item 17-99F（L）Index EXC.GR FIR.GR QUALIFIED.GR 1 VOLATILES % ≤ 8.0 9.0 9.0 2 NaOH % ≤ 0.20 0.20 0.30 3 SODIUM ACETATE % ≤ 2.1 2.3 2.3 4 PURITY % ≥ 90.0 90.0 88.7 5 COLOURING % ≥ 90.0 86.0 - 6 ALCOHOLYSIS %(mol/mol) ≥ 99.8 99.7 99.7 7 POLERIZATION DEGREE 1800±100 1800±100 1800±100 表1（续） Number Item 17-99（H）Index 17-99（L）Index EXC.GR FIR.GR QUALIFIED.GR< EXC.GR FIR.GR QUALIFIED.GR 1 ALCOHOLYSIS %（mol/mol）≥ 99.8 99.8 99.8 99.5 99.5 99.0 2 VISCOSITY mPa.s 22.0-28.9 22.0-28.9 20.0-28.9 22-35 22-35 21-35 3 SODIUM ACETATE % ≤ 6.8 7.0 7.0 2.1 2.3 2.5 4 VOLATILES % 7.0 8.0 9.0 7.0 8.0 9.0 5 ASH % ≤ 2.8 3.0 3.0 0.7 1.0 1.5 6 pH 7-10 7-10 7-10 - - - 7 PURITY % ≥ 86.0 86.0 85.0 90.0 90.0 89.0 8 TRANSPARENCY % ≥ 90 90 - - - - 9 COLOURING % ≥ 88 86 84 - - - 10 POLERIZATION DEGREE 1750±50 1750±50 1750±70 - - - 表1 （续） Number Item 19-99（L）Index 18-99（H）Index EXC.GR FIR.GR QUALIFIED.GR EXC.GR FIR.GR QUALIFIED.GR 1 ALCOHOLYSIS %（mol/mol）≥ 99.2 99.2 99.0 99.8 99.8 99.8 2 VISCOSITY mPa.s 35-45 35-45 35-45 ≥29.0 ≥29.0 ≥29.0 3 SODIUM ACETATE % ≤ 2.1 2.3 2.5 6.8 7.0 7.0 4 VOLATILES % ≤ 7.0 8.0 9.0 7.0 8.0 9.0 5 ASH % ≤ 0.7 1.0 1.5 2.8 3.0 3.0 6 pH - - - 7-10 7-10 7-10 7 TRANSPARENCY % ≥ - - - 90 90 - | |||||
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