Sodium Tripolyphosphate
Na₅P₃O₁₀Cite "Sodium Tripolyphosphate"
Sodium Tripolyphosphate. (n.d.). In Compound. Retrieved from /compound/sodium-tripolyphosphate/
"Sodium Tripolyphosphate." Compound, /compound/sodium-tripolyphosphate/.
@misc{sodium-tripolyphosphate, title={Sodium Tripolyphosphate}, url={/compound/sodium-tripolyphosphate/}}
IUPAC: Sodium triphosphate
CAS: 7758-29-4
Overview
STPP is the most commonly used detergent builder, softening water by sequestering calcium and magnesium ions. It is restricted in some regions due to eutrophication.
Composition
| Element | Symbol | Atoms | Atomic Mass |
|---|---|---|---|
| Oxygen | O | 10 | 15.9990 |
| Sodium | Na | 5 | 22.9900 |
| Phosphorus | P | 3 | 30.9740 |
Uses
- • Detergent builder
- • Water softener
- • Food additive (E451)
- • Ceramic dispersant
Fun Facts
- ✦ Phosphate detergent bans in the 1970s-80s significantly reduced algal blooms in lakes
Safety
- ⚠ Environmental concern (eutrophication)
Structure
SMILES
[O-]P(=O)([O-])OP(=O)([O-])OP(=O)([O-])[O-].[Na+].[Na+].[Na+].[Na+].[Na+]
Properties
- Type
- salt
- State
- solid
- Molar Mass
- 367.86 g/mol
- Density
- 2.5200 g/cm³
- Melting Point
- 622.0 °C
- Solubility
- 145 g/L at 25°C
Molecular Descriptors
- Exact Mass
- 367.8193
- TPSA
- 185.0 Ų
- H-Bond Donors
- 0
- H-Bond Acceptors
- 10
- Rotatable Bonds
- 2
- Heavy Atoms
- 18
- Complexity
- 241.0
Frequently Asked Questions
What is Sodium Tripolyphosphate?
Sodium Tripolyphosphate (Na₅P₃O₁₀) is a salt compound with the IUPAC name Sodium triphosphate.
What is the molecular weight of Sodium Tripolyphosphate?
Sodium Tripolyphosphate has a molar mass of 367.86 g/mol.
What state is Sodium Tripolyphosphate at room temperature?
Sodium Tripolyphosphate is a solid at room temperature.
Is Sodium Tripolyphosphate organic or inorganic?
Sodium Tripolyphosphate is classified as an inorganic compound.
What elements make up Sodium Tripolyphosphate?
Sodium Tripolyphosphate (Na₅P₃O₁₀) is composed of Oxygen (O), Sodium (Na), Phosphorus (P).