... water, alcohol, acetone and ethyl acetate. 5.Specification: Comply strictly with China national standard of GB5308-85. 6.Technical data: Purity % ≥ ... light yellow to light brown powder, Quality index: in accordance with the national standard of GB5308-85. Uses: As a fixing ... Chemical Co., Ltd, is the biggest leading enterprise in China,we specialize in the depth processing of Chinese gallnuts. Our ...