The domestic and foreign trade
of phosphorous chemical products
We win by quality
The domestic and foreign trade
of phosphorous chemical products
We win by quality
PRODUCTS
We are committed to making the company a fine phosphate production enterprise with "prominent main business, reasonable structure, advanced management science, advanced culture, friendly environment and harmonious atmosphere".
Application grade: food grade
Content: 96.5(%)
Particle size: 100(mesh)
CAS RN: 7722-88-5
Executive standard: HG/T2968-1999
Brand: Junlin
Alias: Sodium pyrophosphate; Tetrasodium pyrophosphate; TSPP; Tetra Sodium Pyrophosphate; Tetrasodium Diphosohate
Molecular formula: Na4P2O7
Molecular weight: 265.90
CAS RN: 13472-36-1
Properties:
White powder or crystal. Relative density 2.534, melting point 880℃, boiling point 93.8℃, specific gravity 2.534. Colorless transparent crystal or white crystalline powder. Easily soluble in water, solution in 100g water at 20℃ is 6.23; insoluble in alcohol. Aqueous solution is stable under 70℃.
Uses:
In electroplating industry, it can be used in preparing electroplate liquid; in textile industry, it can be used as wool degreasant and wool bleaching agent; in papermaking industry, it can be used in bleaching paper and plant fiber; in dyeing and printing industry, it can be used as auxiliary for printing and dyeing, and for refined bleaching, etc.
Quality specification: technical grade: HG/T2968－1999; upon customer's request
Food grade: HG2923－1999; FCC; upon customer's request
| Item | Index | |||||
| Technical grade | Food grade | |||||
| Na4P2O7 | Na4P2O7·10H2O | Na4P2O7 | Na4P2O7·10H2O | |||
| superior product | First-class product | Qualified product | ||||
| Main content, % ≥ | 97.5 | 96.5 | 95.5 | 98.0 | 96.5 ～ 100.5 | 98.0 |
| Content of water insoluble matter, % ≤ | 0.20 | 0.10 | 0.20 | 0.10 | ||
| PH value (10 g/L solution) | 9.9 ～ 10.7 | 9.9 ～ 10.7 | ||||
| Orthophosphate | accord with the test | accord with the test | ||||
| Arsenic (As) content, % ≤ | — | 0.0003 | ||||
| Heavy metal (Pb), % ≤ | — | 0.001 | ||||
| Fluoride (F) content, % ≤ | — | 0.005 | ||||
| Heating loss, % ≤ | — | 0.50 | 38.0 ～ 42.0 | |||
Packing: 25Kg, 50Kg bag; packaging ton bag; upon customer's request
