| Product name | Tera Sodium Pyrophosphate (TSPP) |
| CAS No. | 7722-88-5 |
| Grade | Tech. / Food |
| MSDS |
化学式 ：Na4P2O7 分子量：265.9
Chemical formula: Na4P2O7 Molecular weight : 265.9
执行标准：HG/T2968-2009 (工业级) ；GB25557-2010 (食品级)
Standard executed: HG/T2968-2009 (TECH GRADE) ; GB25557-2010 (FOOD GRADE)
【性状Properties 】
白色粉末，易溶于水，不溶于醇，相对密度2.45，熔点890℃， 水溶液呈弱碱性，在空气中易潮解，水溶液在70℃下较稳定，煮沸则水解成磷酸氢二钠。
White powder, soluble in water, but insoluble in ethanol, relative density 2.45 and melting point 890℃, deliquescent in the open air, its aqueous solution shows weak alkalinity and is stable at 70, but will be hydrolyzed into disodium phosphate when boiled.
【用途Application 】
在工业上用于洗涤助剂，造纸漂白，电镀工业。在食品工业中用作缓冲剂、乳化剂、营养剂和品质改良剂。
In industry, it is used as detergent auxiliary, paper production to bleach and electroplating. In food industry, it is used as buffering agent, emulsifier, nutrition ingredients and quality improver.
【包装Packing and storage 】
内塑外编，每袋净重25KG、50KG、1000K，贮于通风干燥处。
In 25KG, 50KG, 1000Kg net bags, stored at a cool, dry and well ventilated place.
【技术指标Technical Data 】
|
ITEMS |
TECH GRADE SPECIFICATION |
FOOD GRADE SPECIFICATION |
|
Assay Na4P2O7 % ≥ |
96.5 |
96.5 |
|
P2O 5 % ≥ |
51.5 |
51.5 |
|
Water Insoluble Matter % ≤ |
0.2 |
0.2 |
|
Ortho Phosphates |
Pass |
Pass |
|
pH Value (1% water solution) |
9.9-10.7 |
9.9-10.7 |
|
Arsenic, as As % ≤ |
|
0.0003 |
|
Fluoride, as F % ≤ |
|
0.005 |
|
Loss on ignition %≤ |
|
0.5 |
|
Size (through 60mesh sieve) |
90%Min. |
90%Min. |
