1. CAS NO.:1310-73-2 2. HS Code:28151100 3. Purity: 96%, 99%, etc 4. Appearance: Flakes, Pearl (white or ... light blue) Caustic sodaCas no.: 1310-73-2 properties ... Detail:15-20 days 1. CAS NO.:1310-73-2 2. HS Code:28151100 3. Purity: 96%, 99%, etc 4. Appearance: Flakes, Pearl ...