STPP 94% 96% for Ceramics Sodium Tripolyphosphate Tech Grade

STPP 94% 96% for Ceramics Sodium Tripolyphosphate Tech GradeSTPP is white powder, apparent density:0.35-0.90g/ml, melting point: 622°C, easily dissolving
in water; water solution is alkaline(PH value of 1% solution is 9.7); can hydrolyze into phosphate
in water, has good ability in complexing metal ions,; can be used to soften water; has some
surfactant properties.Specification of Sodium Tripolyphosphate (STPP)ITEMINDEXINDEXTech GradeFood GradeNa5P3O10 (%):94Min94MinP2O5 (%):57Min57MinInsolubles in water (%):0.15Max0.05MaxFe (%):0.007MaxNPh (1% solution):9.2-109.5-10Heavy metal (As Pb) (%):N0.01MaxArsenic (As) (%):N0.0003MaxFluoride(F) (%):N0.003MaxWhiteness(%):90Min90MinDensity (g/cm3)0.35-0.90.35-0.9Itype content (%)10-3010-30
Applicaation of Sodium Tripolyphosphate (STPP)94%

1)Indetergents

ThemajorityofSTPPisconsumedasacomponentofcommercialdetergents.

Itservesasa"builder,"industrialjargonforawatersoftener.Inhardwater

(waterthatcontainshighconcentrationsofMg2+andCa2+),detergentsare

deactivated.Beingahighlychargedchelatingagent,TPP5-bindstodications

tightlyandpreventsthemfrominterferingwiththesulfonatedetergent.

2)Foodapplications

STPPisapreservativeforseafood,meats,poultry,andanimalfeeds.Itiscommon

infoodproductionasEnumberE451.Infoods,STPPisusedasanemulsifierand

toretainmoisture.Manygovernmentsregulatethequantitiesallowedinfoods,

asitcansubstantiallyincreasethesaleweightofseafoodinparticular.TheUnitedStatesFoodandDrugAdministrationlistsSTPPas"generallyrecognizedassafe.".

3)Otheruses

Otheruses(hundredsofthousandsoftons/year)include"ceramics,leather

tanning(asmaskingagentandsynthetictanningagent-SYNTAN),anticaking,

settingretarders,flameretardants,paper,anticorrosionpigments,textiles,

rubbermanufacture,fermentation,antifreeze.

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