THPS

IdentificationSynonyms:Octakis(hydroxymethyl)diphosphonium sulfate; Tetrakis(hydroxymethyl)phosphonium sulfate (2:1); THPSCAS No.:55566-30-8 EC No.: 259-709-0Molecular Weight: 406.278Structural Formula: Molecular Formula: C8H24O12P2Sm.p.: -35 deg. Cb.p.: 111 deg. CSpecific gravity:Solubility in water: min. 10g/100ml @ 18 deg. CPreparation:THPS can be obtained by reaction between PH3 (phosphine, by-product of sodium hypophosphite) , sulfuric acid and formaldehyde.ApplicationTHPS is an environmentally-friendly phosphonium salt biocide applied in industrial cooling systems, oil field operations, and paper-making industry. THPScan degrade to a nontoxic substance immediately after use.THPS is also applied as flame retardant in cotton, dacron-cotton fibers.SpecificationItemsSpecificationTHPS active content75% min.appearancecolorless or pale yellow liquiddensity @ 25C1.37 1.41 g/mlphosphorus content11% min.pH3 4viscosity @ 20C30 45 cpsStandard Packaging250kg/plastic drum; 1250kg/IBC, ISO tankRisks and Safety InformationProper Shipping Name: Corrosive liquid, toxic, N.O.S.UN 2922Hazard Class: 8, Sub-hazard 6.1PG: IIIHazard Label: Corrosive, ToxicR-Phrase: R:25 34S-Phrase: S:26 27 36/37/39 45More information please see MSDS