Trisodium Phosphate Dodecahydrate
Synonyms: Trisodium phosphate dodecahydrate, trisodium phosphate dodecahydrate, sodium orthophosphate dodecahydrate
| Item | Details |
| CAS No. | 10101-89-0 |
| Molecular Formula | Na3PO4·12H2O |
| Molecular Weight | 380.13 |
| Appearance | Colorless transparent cubic crystals or white crystalline particles, free of yellowing and agglomerated impurities |
| Melting Point | 73.4℃ (gradually loses crystal water upon heating, fully dehydrates to generate anhydrous trisodium phosphate at 100℃) |
| Solubility | Highly soluble in cold and hot water, aqueous solution strongly alkaline; insoluble in organic solvents such as ethanol and acetone |
| Stability | Prone to efflorescence and water loss in dry environment at room temperature; fully dehydrates at high temperature; neutralizes rapidly into phosphate when contacting acid; strong hygroscopicity; store sealed for moisture protection |
| HS Code | 2835290000 (Other sodium phosphates) |
| Packing | Woven bag lined with PE inner film, plastic drum, standard specification: 25kg; outer package marked with labels for moisture-proof, acid-proof and light-proof, separate industrial-grade and food-grade dedicated packaging |
| Storage Conditions | Store in cool, dry and ventilated warehouse, ambient temperature ≤30℃, relative humidity ≤60% RH; seal packaging to prevent efflorescence and moisture absorption; do not mix with strong acids, acidic chemicals and food raw materials; use up quickly after opening, seal remaining materials for moisture protection |
| Personal Protection | Wear dust mask, alkali-resistant rubber gloves and goggles during operation; avoid dust inhalation and prohibit prolonged skin contact; keep operation site ventilated to prevent dust flying |
| Waste Disposal | Neutralize alkaline waste liquid with dilute acid to neutrality before compliant discharge; recycle solid waste as general industrial solid waste uniformly; do not discharge directly into rivers and soil, do not stack with acidic waste |
| Application Fields | Industrial cleaning / heavy oil degreasing; metal surface treatment; textile printing and dyeing industry; water treatment industry; food processing industry (food grade); daily chemical washing; ceramic and glass manufacturing; fermentation and biochemistry industry; building materials |
