GB/T 210.2-2004: Translated English of Chinese Standard. (GBT 210.2-2004, GB/T210.2-2004, GBT210.2-2004): Specification and determination methods of sodium carbonate for industrial use - Part 2: Specification and determination methods
https://www.chinesestandard.net, 2016 M10 1 - 25 pages
This Standard specifies the specification and determination methods of sodium carbonate for industrial use. This Standard is applicable to the sodium carbonate for industrial use produced by using industrial salt or trona as raw material through Solvay process, Hou process for soda manufacture or other methods. This product is mainly used in the following industries: chemical industry, glass, metallurgy, papermaking, printing and dyeing, synthetic detergents, petrochemical industry, etc.
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40mL of water absolute difference ACCURATE to 0.01g acid volumetric solution ADD 20mL Analysis procedures WEIGH arithmetic mean value barium chloride barium sulfate blank test British Standard bromophenol blue Buchner funnel CALCULATE according carbonate for industrial constant weight determination methods difference of parallel electrode filtration GB/T glass sheet gram g HG/T hydrochloric acid solution hydrochloric acid volumetric ignition measured according loss on ignition mass fraction mercuric nitrate volumetric method for determination Method summary methyl orange milliliter mL molar mass nitrate volumetric solution nitric acid solution parallel determination results Reagents reference sodium chloride Result calculation results as determination SHAKE evenly silver nitrate volumetric Soda Ash sodium carbonate Specification and determination specimen mass specimen tank standard hydrochloric acid standard mercuric nitrate standard reference sodium standard silver nitrate sulfate content TAKE the arithmetic test samples test solution turbidimetry unit of gram unit of milliliter value of parallel volume volumetric flask volumetric solution consumed