| Origin | China | |
| Brand Name | xiangchangtong | |
| CAS No. | 7758-29-4 | |
| Purity | 96.0% min | |
| FORMULA | Na5P3O10 | |
| TOXICITY | Oral rat LD50: 3120 mg/kg | |
| PHYSICAL STATE | white powder | |
| pH | 9.7 - 9.8 (1% soln) | |
| STABILITY | Stable under ordinary con | |
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SODIUM TRIPOLYPHOSPHATE
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PRODUCT IDENTIFICATION
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CAS NO.
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7758-29-4
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EINECS NO.
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231-838-7
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FORMULA
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Na5P3O10
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MOL WT.
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367.86
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H.S. CODE
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2835.31
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TOXICITY
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Oral rat LD50: 3120 mg/kg
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SYNONYMS
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Sodium triphosphate; Triphosphoric acid, pentasodium salt;
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Sodium Phosphate Tripoly; STPP; Tripolyphosphate de sodium; Pentasodium triphosphate; Pentasodium Tripolyphosphate; Natriumtripolyphosphat; Pentanatriumtriphosphat (German); Trifosfato de pentasodio (Spanish); Triphosphate de pentasodium (French);
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DERIVATION
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Phosphoric acid with a sodium alkali (usually sodium carbonate)
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PHYSICAL AND CHEMICAL PROPERTIES
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PHYSICAL STATE
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white powder
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MELTING POINT
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620 C (Decomposes)
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SPECIFIC GRAVITY
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> 1.5
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SOLUBILITY IN WATER
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20% at 25 C
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pH
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9.7 - 9.8 (1% soln)
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STABILITY
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Stable under ordinary conditions
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APPLICATIONS
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The alkaline phosphates offer detergency activity in combination with the properties of sequestration, dispersion and buffering ability. STPP is used in water softening, industrial cleaners, food uses, detergent, emulsifier of oil and grease, peptizing agent, deflocculating agent in oil well, sequester in cotton boiling.
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SALES SPECIFICATION
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H GRADE
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APPEARANCE
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free flowing white powder
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PURITY
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96.0% min
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P2O5
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57.0% min
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WATER INSOLUBLES
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0.1% max
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IRON as Fe
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0.007% max
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WHITENESS
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90.0% min
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HEAVY METAL as Pb
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0.003% max
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ARSENIC as As
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0.001% max
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pH VALUE
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9.2 - 10.0
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G GRADE
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APPEARANCE
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free flowing white powder
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PURITY
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90.0% min
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P2O5
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56.0% min
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WATER INSOLUBLES
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0.1% max
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IRON as Fe
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0.002% max
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WHITENESS
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80.0% min
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FOOD GRADE
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APPEARANCE
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free flowing white powder
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PURITY
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95.0% min
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P2O5
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57.0% min
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WATER INSOLUBLES
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0.05% max
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WHITENESS
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90.0% min
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FLUORIDE as F
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0.003% max
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CHLORIDE as Cl
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0.03% max
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SULPHATE as SO4
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0.4% max
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HEAVY METAL as Pb
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0.001% max
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ARSENIC as As
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0.0003% max
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pH VALUE
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9.5 - 10.0
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PACKING
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25kgs in bag
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