Advances in Materials Science and Engineering / 2017 / Article / Tab 1

Research Article

Deproteinization of Nonammonia and Ammonia Natural Rubber Latices by Ethylenediaminetetraacetic Acid

Table 1

Nitrogen content of FNR and deproteinized FNR (DPNR) by using EDTA-4Na at various concentrations.

SamplesPreservativepHEDTA-4Na (wt%)Nitrogen content
(wt%)

FNR6.50.638
FR-NH3Ammonia100.587
FR-SHSH100.551
FR-NH3Ammonia100.050.043
FR-NH3Ammonia100.100.009
FR-NH3Ammonia100.200.008
FR-SHSH100.050.012
FR-SHSH100.100.005
FR-SHSH100.200.005

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