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1000 Kilogram |
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Disodium dihydrogen pyrophosphate Disodiumdiphosphate Disodium pyrophosphate (Na2H2P2O7)
Sodium pyrophosphate Chemical Properties |
Melting point | decomposes 220℃ [MER06] |
density | (hexahydrate) 1.86 |
vapor pressure | 0Pa at 20℃ |
storage temp. | -70°C |
solubility | H2O: 0.1 M at 20 °C, clear, colorless |
form | white powder |
color | White to Off-White |
PH | 3.5-4.5 (20℃, 0.1M in H2O, freshly prepared) |
biological source | rabbit |
Water Solubility | Fully miscible in water. Insoluble in alcohol and ammonia. |
λmax | λ: 260 nm Amax: 0.11 λ: 280 nm Amax: 0.09 |
Merck | 13,8643 |
Stability: | Stable. |
InChI | InChI=1S/Na.H4O7P2.H/c;1-8(2,3)7-9(4,5)6;/h;(H2,1,2,3)(H2,4,5,6); |
InChIKey | IQTFITJCETVNCI-UHFFFAOYSA-N |
SMILES | O(P(O)(O)=O)P(O)(O)=O.[NaH] |
LogP | -3.420 (est) |
CAS DataBase Reference | 7758-16-9(CAS DataBase Reference) |
EPA Substance Registry System | Disodium diphosphate (7758-16-9) |
Safety Information |
Hazard Codes | Xi |
Risk Statements | 36 |
Safety Statements | 24/25-26 |
WGK Germany | 2 |
RTECS | UX6475000 |
TSCA | Yes |
Hazardous Substances Data | 7758-16-9(Hazardous Substances Data) |
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