Standard: HG/T2968-1988
Properties: white powder, RD is 2.45, melting point 890, PH value of 1% solu
| SODIUM PYROPHOSPHATE |
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Uses: used as auxiliary agent, degrease, plating, or used as buffer, emulsifier, nutritious agent and modifier. No. | Name | Industry grade | Food grade | 01 | main assay (As Na4P2O7) %≥ | 96.5 | 96.5 | 02 | Phosphorus pentoxide ( P2O5) %≥ | 51.5 | 51.5 | 03 | Water insoluble matter %≤ | 0.20 | 0.20 | 04 | PH value (1% solution ) | 9.9-10.7 | 9.9-10.7 | 05 | n-phosphate | ok | ok | 06 | Heavy metal (As Pb ) %≤ | | 0.001 | 07 | Arsenic (As As ) %≤ | | 0.0003 | 08 | Fluoride (As F ) %≤ | | 0.005 | 09 | Fineness ( on 60 mesh screen ) %≥ | 90 | 90 |
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tetrasodium pyrophosphate (TSPP)
