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Sodium metaphosphate

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Name

Sodium metaphosphate

EINECS 233-343-1
CAS No. 10124-56-8 Density 2.181 g/cm3
Solubility Melting Point 616 °C
Formula Na6O18P6 Boiling Point
Molecular Weight 611.770386 [g/mol] . Flash Point
Transport Information Appearance white granular solid
Safety 24/25 Risk Codes
Molecular Structure Molecular Structure of 10124-56-8 (Sodium metaphosphate) Hazard Symbols
Synonyms

Sodium hexametaphoshpate;Sodium metaphosphate;

 

Sodium metaphosphate Consensus Reports

Reported in EPA TSCA Inventory.

Sodium metaphosphate Specification

Sodium metaphosphate, its cas register number is 10124-56-8. It also can be called Graham's salt; Sodium phosphate (Na6P6O18); Sodium phosphate, tribasic; Sodium polymeta phosphate; Metaphosphoric acid (H6P6O18), hexasodium salt; Metaphosphoric acid (H6P6O18), sodium salt (1:6); Metaphosphoric acid, hexasodium salt; Sodium metaphosphate; Sodium phosphate, tribasic. It is a white granular solid. It hydrolyzes in aqueous solution, particularly under acidic conditions, to sodium trimetaphosphate and sodium orthophosphate. It can be prepared from Na2HPO4 and NaH2PO4.

Uses of Sodium metaphosphate:  Sodium metaphosphate is used as a sequestrant and has applications with in a wide variety of industries, including as a food additive in which it is used under the E number E452i. Its products are used for water softening and detergents, when added with sodium carbonate. It is also used as a dispersing agent to break down clay and other soil types.One of the lesser-known uses for Sodium metaphosphate is as a deflocculant in the making of Terra sigillata, a ceramic technique using a fine particled slip. However, it is also a whitening ingredient included in some whitening toothpastes and mouthwashes.

You can still convert the following datas into molecular structure:
(1)InChI=1S/6Na.H6O18P6/c;;;;;;1-19(2)13-20(3,4)15-22(7,8)17-24(11,12)18-23(9,10)16-21(5,6)14-19/h;;;;;;(H,1,2)(H,3,4)(H,5,6)(H,7,8)(H,9,10)(H,11,12)/q6*+1;/p-6;
(2)InChIKey=GCLGEJMYGQKIIW-UHFFFAOYSA-H;
(3)SmilesP1(OP(OP(OP(=O)([O-])OP(OP(O1)(=O)[O-])(=O)[O-])(=O)[O-])(=O)[O-])(=O)[O-].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+];

The toxiciy data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 870mg/kg (870mg/kg) KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)" Revue d'Epidemiologie, Medecine Sociale et Sante Publique. Vol. 10, Pg. 391, 1962.
mouse LD50 intravenous 62mg/kg (62mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957.
 
mouse LD50 oral 4320mg/kg (4320mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 38(9), Pg. 19, 1973.
mouse LD50 subcutaneous 1300mg/kg (1300mg/kg)   Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957.
 
rabbit LDLo intravenous 140mg/kg (140mg/kg)   Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 169, Pg. 238, 1933.
rat LD50 oral 6200mg/kg (6200mg/kg) PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 38(9), Pg. 19, 1973.

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