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KMID : 0380319730110000019
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Journal of Korean Research Institute for Better Living
1973 Volume.11 No. 0 p.19 ~ p.24
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Study on the purifiction method of Cellulose Nitrate
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Abstract
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Usually, the purification of cellulose nitrate depend upon prewashing process, cutting process and proching process for an industrial operation.
This method has not only the long working period but also has the decreasing viscosity.
Auther studied about the variation of stability, Viscosity and nitrogen content of cellulose nitrate that is purified from the method of precipitation by diluting with water or dilute alkali aqueous solution after dissolving by the effective solvents.
In the results, the variations in viscosity and nitrogen content could not be fined comparative to those of original cellulose nitrate but the stability was good as might have been expected.
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