| Identification | |
| Name: | Sodium metaphosphate |
| Synonyms: | Metaphosphoric acid, hexasodium salt;Calgon;Calgon (old);Calgon S;Graham's salt;Chemi-charl;HMP;Hexametaphosphate, sodium salt;Hexasodium hexametaphosphate;Hexasodium metaphosphate;Medi-Calgon;Metaphosphoric acid (H6P6O18), hexasodium salt;Natrium hexametaphosphat;Natrium hexametaphosphat [German];Phosphate, sodium hexameta;SHMP;Sodium hexametaphosphate (Na6P6O18);Sodium phosphate (Na6P6O18);Sodium polymeta phosphate;Sodium hexametaphosphate; |
| CAS: | 10124-56-8 |
| EINECS: | 233-343-1 |
| Molecular Formula: | Na6O18P6 |
| Molecular Weight: | 611.77 |
| InChI: | InChI=1/6Na.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 |
| Molecular Structure: |  |
| Properties | |
| Density: | 2.181 |
| Stability: | Stable. Keep dry. |
| Refractive index: | 1.482 |
| Appearance: | white granular solid |
| Specification: |
?Sodium hexametaphosphate , its cas register number is 10124-56-8. It also can be called?Graham's salt ; Metaphosphoric acid, hexasodium salt ; Sodium polymetaphosphate ; Calgon ; Calgon (old) ; Calgon S ; Caswell No. 772 ; Chemi-charl ; EPA Pesticide Chemical Code 076402 ; FEMA 3027 ; Graham's salt ; HMP ; HSDB 5053 ; Hexametaphosphate, sodium salt ; Hexasodium hexametaphosphate ; Hexasodium metaphosphate ; Medi-Calgon ; Metaphosphoric acid (H6P6O18), hexasodium salt ; Metaphosphoric acid, hexasodium salt ; Natrium hexametaphosphat ; Natrium hexametaphosphat [German] ; Phosphate, sodium hexameta ; Polyphos ; SHMP ;?Sodium hexametaphosphate (Na6P6O18) ; 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 . |
| Report: |
Reported in EPA TSCA Inventory. |
| Storage Temperature: | Store in a cool, dry place. Store in a tightly closed container. |
| Usage: | Improves efficiency of the developing process in photographic work. |
| Safety Data | |
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