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Specifications of National Standard GB/T 4482-2018: Yellowish brown Crystal; 1,FeCl3•6H2O, %≥98; 2,Fe3+, %≥19.20; 3,Fe2+, %≤0.15; 4,Insoluble substance, %≤1.00; 5,Free Acid, %≤0.80; 6,Zn,...
Specifications of National Standard GB/T 4482-2018: Reddish brown liquid; 1, FeCl3, %≥40; 2,Fe3+, %≥13.00; 3,Fe2+, %≤0.10; 4,Insoluble substance, %≤0.50; 5,Free Acid, %≤0.40; 6,Density(20℃)/...