| Identification | More | [Name]
Sodium metaphosphate | [CAS]
10361-03-2 | [Synonyms]
GRAHAM'S SALT
INSOLUBLE SODIUM METAPHOSPHATE
ISMP
metaphosphoric acid hexasodium salt
Metaphosphoric acid sodium salt
SODIUM METAPHOSPHATE
SODIUM M-PHOSPHATE
SODIUM PHOSPHATE, PH 6.8
SODIUM POLYPHOSPHATE
kurrol’ssalt
maddrell’ssalt
maddrellsalt
metafos
metaphosphoricacid(hpo3),sodiumsalt
metaphosphoricacid[hpo3],sodiumsalt
metaphosphoricacid[hpo3],sodiumsalt,homopolymer
poly(sodiummetaphosphate)
polymericsodiummetaphosphate
sodiummetaphosphate[napo3]
sodiumphosphate[napo3] | [EINECS(EC#)]
233-782-9 | [Molecular Formula]
NaO3P | [MDL Number]
MFCD00011490 | [Molecular Weight]
101.96 | [MOL File]
10361-03-2.mol |
| Chemical Properties | Back Directory | [Definition]
The value of n
ranges from 3 to 10 (cyclic molecules) or may
be a much larger number (polymers). Cyclic
sodium metaphosphate, based on rings of alter-
nating phosphorus and oxygen atoms, range
from the trimetaphosphate (Na PO
3
)
3
to at least
the decametaphosphate. So-called sodium hexam-
etaphosphate is probably a polymer where n is
between 10 and 20 (“Calgon”).
| [Melting point ]
600 °C | [bulk density]
1000kg/m3 | [density ]
2.181 | [storage temp. ]
Store at +5°C to +30°C. | [solubility ]
1000g/l | [form ]
solid | [PH]
5.7 (10g/l, H2O, 20℃) | [Water Solubility ]
1000g/L | [Uses]
sodium metaphosphate can be used to adjust pH levels, thus acting as a buffer. | [CAS DataBase Reference]
10361-03-2(CAS DataBase Reference) | [EPA Substance Registry System]
10361-03-2(EPA Substance) |
| Safety Data | Back Directory | [WGK Germany ]
1
| [RTECS ]
OY3750000
| [HS Code ]
2835 39 00 | [Safety Profile]
Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic fumes of NazO and POx. See also PHOSPHATES. | [Hazardous Substances Data]
10361-03-2(Hazardous Substances Data) | [Toxicity]
LD50 orally in Rabbit: > 2000 mg/kg |
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