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10361-03-2

Name Sodium metaphosphate
CAS 10361-03-2
EINECS(EC#) 233-782-9
Molecular Formula NaO3P
MDL Number MFCD00011490
Molecular Weight 101.96
MOL File 10361-03-2.mol
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Chemical Properties

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
density  2.181
storage temp.  Store at +5°C to +30°C.
solubility  1000g/l
PH 5.7 (10g/l, H2O, 20℃)
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

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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