Identification
CAS Number
7758-29-4
Name
STPP
Synonyms
Sodium triphosphate [Wiki]
Pentanatriumtriphosphat [German] [ACD/IUPAC Name]
Pentasodium triphosphate [ACD/IUPAC Name]
Triphosphate de pentasodium [French] [ACD/IUPAC Name]
UNII:9SW4PFD2FZ
[7758-29-4]
10380-08-2 [RN]
13573-18-7 [RN]
187620-23-1 [RN]
7758-29-4 [RN]
9010-08-6 [RN]
Armofos
EINECS 231-838-7
Empiphos stp-D
MFCD00003514
Natriumtripolyphosphat [German]
Natriumtripolyphosphat [German]
pentasodium (oxido-phosphato-phosphoryl) phosphate
pentasodium (oxido-phosphonatooxyphosphoryl) phosphate
pentasodium (oxido-phosphonatooxy-phosphoryl) phosphate
Pentasodium tripolyphosphate
Rhodiaphos LV
Sodium phosphate (Na5P3O10)
sodium phosphate, tribasic
Sodium triphosphate pentabasic
Sodium tripolyphosphate
Sodium tripolyphosphate pentabasic
Sodiumtripolyphosphate
STPP
Thermphos
Thermphos L 50
Thermphos N
Thermphos SPR
triphosphoric acid pentasodium salt
Triphosphoric acid, pentasodium salt
Triphosphoric acid, sodium salt
UNII-9SW4PFD2FZ
SMILES
[O-]P(=O)([O-])OP(=O)([O-])OP(=O)([O-])[O-].[Na+].[Na+].[Na+].[Na+].[Na+]
StdInChI
InChI=1S/5Na.H5O10P3/c;;;;;1-11(2,3)9-13(7,8)10-12(4,5)6/h;;;;;(H,7,8)(H2,1,2,3)(H2,4,5,6)/q5*+1;/p-5
StdInChIKey
HWGNBUXHKFFFIH-UHFFFAOYSA-I
Molecular Formula
Na5P3O10
Molecular Weight
367.86
EINECS
231-838-7
MDL Number
MFCD00003514
Properties
Appearance
White powder
Safety Data
RIDADR
NONH for all modes of transport
WGK Germany
1
RTECS
YK4570000
Specifications and Other Information of Our STPP CAS 7758-29-4
Detailed specification
| Indicator | Industrial grade I | Industrial grade II | Industrial grade III | Food grade |
| White chroma %≥ | 85 | 75 | 65 | 85 |
| Sodium Tripolyphosphate（Na5P3O10）%≥ | 96 | 90 | 85 | 85 |
| Phosphorus pentoxide（P2O5）%≥ | 57 | 56 | 55 | 56~58 |
| Water-insoluble matter %≤ | 0.1 | 0.01 | 0.015 | 0.1 |
| PH value(1% Aqueous solution) | 9.2~10 | 9.2~10 | 9.2~10 | 9.5~10 |
| Density g/cm | 0.5 | 0.5 | 0.5 | 0.65~0.9 |
| Arsenic（As)%≤ | / | / | / | 4 |
| Heavy metal(In terms of Pb）%≤ | / | / | / | 10 |
| Fluoride（In terms of F mg/kg）%≤ | / | / | / | 50 |
| Chlorine（CL)%≤ | / | / | / | 0.025 |
Storage
Under room temperature away from light
Packing
Plastic woven bag or kraft paper bag
Known Application
Industrial grade sodium tripolyphosphate is mainly used as a detergent additive, and can also be used in petroleum, metallurgy, mining water treatment, etc. Sodium tripolyphosphate is mainly used as a quality improver in meat products and canned meat
