Ash
Project Overview
Instruments and equipments
➢ 30mL crucible
➢ oven
➢ muffle furnace
➢ electronic balance
➢ drier
Test procedures
Weigh the crucible and record the value as M1，Take 2g of test samples in the crucible (correct to 0.0001g) And record the value as M2，put the testsamplesin the oven at 105℃ for 3h, cool in a dryer to room temperature, weigh and record the value as M3, put the testsamplesinto the muffle furnace and burn at 450℃ for 3h, cool in a dryer to room temperature，weigh and record the value as M4.
Calculate
Ash in mass fraction is calculated as follows
W (Ash) = (M4-M1)/M2*100
Make 2 parallel samples for each sample, average the results. If the difference between the two resultsis greater than 0.5, retest isrequired.
威克特瑞
Zhicheng cellulose began to develop and produce methyl cellulose and hydroxypropyl methyl cellulose in the late 1970s. One of the earliest enterprises producing nonionic cellulose ether in China.
Shanxi Zhicheng Cellulose Co.,Ltd
Shanxi Zhicheng New Material Co.,Ltd
Mobile/Wechat/WhatsApp: +86 15525631225
E-mail: sales@zcchem.top
Address: Innovation Avenue, Yuanping Economic and Technological Development Zone,
Xinzhou City, Shanxi Province, China
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