SODIUM PYROPHOSPHATE
1. Basic Information
Alias: TSPP
Molecular formula: Na4P2O7
Molecular weight: 265.90
CAS no. : 7722-88-5
EINECS : 231-767-1
Customs Code: 28353990
2. Physicochemical Properties
Appearance : White powder or crystal
Relative density : 2.534g/cm
Melting point : 880 ºC
Boiling point : 938 ºC
Solubility : Soluble in water.
Specialty : The solubility of 100g water at 20ºC is 6.23, and its aqueous solution is alkaline.,insoluble in alcohol. Water solution is stable below 70ºC, and hydrolyzes to disodium hydrogen phosphate after boiling. In the weathering, the crystal loses its drying in air at 100 ºC, and easy to absorb moisture or deliquescence in the air.
3.Applications
Water softener, detergent additive, wool degreaser and industrial detergent additive, boiler scale remover, metal ion chelating agent, dispersant, etc.
4.Technical Standards ( HG / T2968-2009)
Item |
Industrial-grade index |
| Na4P2O7 |
Na4P2O7·10H2O |
| Main contents, w/%≥ |
96.5 |
98.0 |
| Water insouble,w/%≤ |
0.20 |
0.10 |
| PH(10g/ml) |
9.9-10.7 |
| Ortho phosphate |
pass |
5.Product Packaging
PE and PP woven bag with inner vacuum treatment. 25kg/ bag, 50kg/ bag, 1000kg/ bag, net weight and pattern can be customized.
6. Transportation & Storage
Not allowed to store and transport together with toxic and harmful substances. Please store it in a dry, ventilated warehouse.
FAQ
Q: Can I get a free sample before placing an order?
A: Yes, of course.
Q: Delivery time?
A: We have complete equipment, efficient production and sufficient inventory, so that goods can be delivered within 3 days.
Q:Ports near factory?
A:Tianjin and Qingdao port. Dear guests, you can specify any port.
Q: The time for deliver our products to Tianjin or Qingdao port?
A: 1-2 days.
Q: How is your after-sales service?
A: If you have any technical or quality problems after receiving the goods, you can always contact us. If the problem is caused by us, we will send you the goods for free or refund your loss.
Q: What is your terms of payment?
A: Payment<=1000USD,100% in advance. Payment >= 1000USD,50% T/T in advance, balance before shippment.
Q: Are you trading company or manufacturer?
A: We are a factory, which has the best price.
Audited Supplier 
){kind=link}
){kind=link}