| Identification | Back Directory | [Name]
SODIUM TETRAPHOSPHATE | [CAS]
14986-84-6 | [Synonyms]
QUADRAFOS
quadraphos
Hexanatriumtetraphosphat
HEXASODIUM TETRAPHOSPHATE
sodiumphosphate(na6p4o13)
SODIUM TETRAPOLYPHOSPHATE
hexanatriumtetrapolyphosphat
hexasodiumtetrapolyphosphate
Tetraphosphoricacid,hexasodiumsalt
hexasodium,[oxido-[oxido(phosphonatooxy)phosphoryl]oxyphosphoryl] phosphate | [EINECS(EC#)]
239-073-0 | [Molecular Formula]
H7NaO13P4 | [MDL Number]
MFCD00216883 | [MOL File]
14986-84-6.mol | [Molecular Weight]
361.93 |
| Hazard Information | Back Directory | [Chemical Properties]
Na6P4O13 ? H2O . Formula weight of the anhydrous salt is
469.85. The crystalline salt cannot be obtained. On standing for
four weeks, the dried oil is partially transformed to Na3HP2O7 .
H2O. Heating of this mixture to 200°C for two hours produces a
quantitative yield of Na3HP2O7. | [Synthesis]
Hexasodium tetraphosphate is formed by careful hydrolysis of
sodium tetrametaphosphate(method of Thilo and Ratz):
A solution of 4.8 g. of Na 4 P4 O 12 ? 4H2O in 85 ml. of hot water
is prepared, and after cooling, a solution of 0.8 g. of NaOH in
some water is added. The mixture is kept over H2SO4 in a vacuum
desiccator, placed in an oven at 40°C. The rat e of evaporation should be such that after about 100 hours no less than 8 to 10 ml.
remains. The solution is then diluted to 30 ml. and acetone is
added. The colorless oil formed is dissolved in some water and
reprecipitated with acetone.
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