Tetrasodium diphosphate

Hix LM, Frey DA, McLaws MD, 0sterlie M, Lockwood SF, and Bertram JS. 2005. Inhibition of chemically-induced neoplastic transformation by a novel tetrasodium diphosphate astaxanthin derivative. Carcinogenesis 26(9) 1634-1641. 

Partial decomposition of some salts is the preparative means to others. For example, the commercial preparation of tetrasodium diphosphate involves the thermal dehydration of Na2HP04 ... 

Sodium diphosphate is prepared by the following procedure. Disodium hydrogen phosphate dihydrate, Na2HP04 2H20, (7.12 g, 40 mmole) is placed in a 60-mL platinum crucible and heated in air at 400° for 12 hours (Product Merck for analysis K 6580). According to Porthault,2 this method leads to a tetrasodium diphosphate, Na4P207, the purity of which is better than 99.5%. No impurities can be found by chromatographic or potentiometric analysis. 

TETRASODIUM DIPHOSPHATE TETRASODIUM PYROPHOSPHATE, ANHYDROUS TSPP VICTOR TSPP... 

TETRAPROPYLENE see PMP750 TETRAPROPYLENEPENTAMINE see TED600 TETRAPROPYL LEAD see TED750 TETRASIPTON see TFS350 TETRASODIUM DIARSENATE see SEYIOO TETRASODIUM DIPHOSPHATE see TEE500 TETRASODIUM EDTA see EIVOOO TETRASODIUM... 

Disodium dihydrogen diphosphate is used as baking powder and tetrasodium diphosphate in industrial cleaning agents. 

Sodium di- and poly-phosphates Diphosphates, disodium dihydrogen diphosphates and tetrasodium diphosphates are industrially produced by heating sodium hydrogen phosphates. 

EINECS 205-012-1 Kappadione Kipoa water soluble Menadiol sodium diphosphate Menadiol tetrasodium diphosphate Menadione diphosphate tetrasodium salt Menadione sodium phosphate Procoagulo Sodium menadione diphosphate Synkavit Synkavite Synkayvite Thylokay. Vitamin, vitamin source. Prothrombogenic. Very solubie in H2O insoluble in MeOH, EtOH, Et20, MegCO. Eli Litiy Co. Hoffmann-LaRoche Inc. 

The samples with P/Si ratios smaller than 1.00 contain trisodium orthophosphate but not a-cristobalite. For these samples the silicon dioxide produced by equation 1 reacts further with an excess of sodium metasilicate to form glassy sodium silicate. The samples with P/Si ratios larger than 1.00 contain a-cristobalite and two of the following three phosphate species trisodium orthophosphate, tetrasodium diphosphate, and pentasodium triphosphate (high-temperature form). The quantity of a-cristobalite in these samples, of course, decreases with the increase of the P/Si ratio. The amount of orthophosphate decreases and diphosphate increases when the P/Si ratio increases from 1.00 to... 

An x-ray diffraction pattern of the sample exhibits the peaks due to considerable amounts of tetrasodium diphosphate and an unknown species with a small amount of disodium sulfate. The following three... 

Synonyms/Trade Names Pyrophosphate, Sodium pyrophosphate, Tetrasodium diphosphate, Tetrasodium pyrophosphate (anhydrous), TSPP ... 

Synonyms DIphosphoric acid tetrasodium salt Sodium diphosphate Sodium pyrophosphate n-Sodium pyrophosphate Sodium tetrapyro-phosphate Tetrasodium diphosphate TSPP Classification Inorganic phosphate salt Empirical Na,0,P2 Fonnula Na, (PO,OPOj)... 

TSPP (Na4P207), also known as tetrasodium diphosphate, has found application as a detergent builder and as a water softener, although in significantly smaller volumes than STTP, and its use... 

The phosphorus content in some foods can be raised above the natural level using food additives based on polyphosphoric acid salts or salts of phosphoric acid. Polyphosphates are either sodium or potassium salts of polyphosphoric acids with straight chains and different degrees of polymerisation, M +2P 03 +i (6-30) or salts of cyclic polyphosphoric acids, (M POj) (6-31), which are actually oligomers of hydrogenphosphoric acid (m-phosphoric acid), HPO3. The most commonly used materials are sodium and potassium phosphates, especially disodium dihydrogendiphos-phate, tetrasodium diphosphate, sodium triphosphate and the so-called sodium hexametaphosphate. 

Trade Names Containing Aerosol 22 Aerosol 22 Special Tetrasodium diphosphate. See Tetrasodium pyrophosphate Tetrasodium edetate. See Tetrasodium EDTA Tetrasodium EDTA... 

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