1. caustic soda pearls 99% 2. pure white appearance, very ... is used as acidity regulator, alkali, impregnant’s pigment. CAUSTIC SODA PEARLS, NaOH 99%, AlkaliWhite flakes or granular or solid ... in acetone and diethyl ether.We are the largest caustic soda beads manufacturer in China with 80,000 tons annual ... professional experience, the product and serviec are both excellent. caustic soda 99%, alkali