Ammonium Alum CAS No.: 7784-25-0 Molecular Formula: AlNH?(SO?)?·12H?O Other Names: Aluminum ammonium sulfate; Ammonium aluminum sulfate; Alum ammonium. Properties: Colorless glassy octahedral crystals to white granules or powder, odorless with a slightly sweet taste, strongly astringent. Packaging: 50 kg net per bag, single-layer plastic woven bag packaging. Uses: Processing of baking powder, fried foods, jellyfish curing, vermicelli processing, preservation and crispness retention of fruits and vegetables, color protection, water purification and environmental protection, disinfection, rubber processing, leather making, detergent processing, feed processing, pencil manufacturing. Features: High whiteness, high fineness, high purity, long-term non-caking, providing convenience for user processing and production.