| Product name | Tera Sodium Pyrophosphate (TSPP) |
| CAS No. | 7722-88-5 |
| Grade | Tech. / Food |
| MSDS |
化學(xué)式 ：Na4P2O7 分(fēn)子量：265.9
Chemical formula: Na4P2O7 Molecular weight : 265.9
執行标準：HG/T2968-2009 (工(gōng)業級) ；GB25557-2010 (食品級)
Standard executed: HG/T2968-2009 (TECH GRADE) ; GB25557-2010 (FOOD GRADE)
【性狀Properties 】
白色粉末，易溶于水，不溶于醇，相對密度2.45，熔點890℃， 水溶液呈弱堿性，在空氣中(zhōng)易潮解，水溶液在70℃下較穩定，煮沸則水解成磷酸氫二鈉。
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(yòng)途Application 】
在工(gōng)業上用(yòng)于洗滌助劑，造紙漂白，電(diàn)鍍工(gōng)業。在食品工(gōng)業中(zhōng)用(yòng)作(zuò)緩沖劑、乳化劑、營養劑和品質(zhì)改良劑。
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.
【包裝(zhuāng)Packing and storage 】
内塑外編，每袋淨重25KG、50KG、1000K，貯于通風幹燥處。
In 25KG, 50KG, 1000Kg net bags, stored at a cool, dry and well ventilated place.
【技(jì )術指标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. |
