TETRASODIUM PYROPHOSPHATE (CAS 1004291-85-3) — formula Na4P2O7, molecular weight 265.90.
| CAS Number | 1004291-85-3 |
|---|---|
| Molecular Formula | Na4P2O7 |
| Molecular Weight | 265.90 |
| Melting Point | 1810 °F (NIOSH, 2024) |
| Applications | Cleaning agent, Absorbent, Corrosion inhibitor, Thickening agent, Emulsifier, Chelating agent, Flocculating agent, Etching agent, Used as a water softener, detergent, emulsifying agent, metal cleaner, and nutritional supplement |
Documented applications: Cleaning agent, Absorbent, Corrosion inhibitor, Thickening agent, Emulsifier, Chelating agent, Flocculating agent, Etching agent, Used as a water softener, detergent, emulsifying agent, metal cleaner, and nutritional supplement.
TETRASODIUM PYROPHOSPHATE is a chemical compound with CAS registry number 1004291-85-3 and molecular formula Na4P2O7 (molecular weight 265.90).
CAS number: 1004291-85-3
Its molecular formula Na4P2O7 comprises 4 Na, 2 P, 7 O atoms.
Also known as: TETRASODIUM PYROPHOSPHATE · 焦磷酸四钠 · Sodium diphosphate tetrabasic
The CAS registry number of TETRASODIUM PYROPHOSPHATE is 1004291-85-3.
Molecular formula Na4P2O7, molecular weight 265.90.
It is also registered under: TETRASODIUM PYROPHOSPHATE, 焦磷酸四钠, Sodium diphosphate tetrabasic.
Recorded applications: Cleaning agent, Absorbent, Corrosion inhibitor, Thickening agent, Emulsifier, Chelating agent, Flocculating agent, Etching agent, Used as a water softener, detergent, emulsifying agent, metal cleaner, and nutritional supplement.
Independent reference data for TETRASODIUM PYROPHOSPHATE (CAS 1004291-85-3), compiled from public chemistry databases.
| CAS Registry Number | 1004291-85-3 |
|---|---|
| PubChem CID | 24403 |
| Molecular formula | Na4P2O7 |
| IUPAC name | tetrasodium;phosphonato phosphate |
| UNII (FDA) | O352864B8Z |
| Molecular Weight | 265.90 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 0 |
| Exact Mass | 265.87100346 |
| Monoisotopic Mass | 265.87100346 |
| Topological Polar Surface Area | 136 |
| Heavy Atom Count | 13 |
| Melting Point | 1810 °F (NIOSH, 2024) |
|---|---|
| Melting Point | 988 °C |
| Melting Point | 993 °C |
| Melting Point | 1810 °F |
| Solubility | 7 % at 77 °F (NIOSH, 2024) |
| Solubility | (77 °F): 7% |
| Density | 2.534 |
| Density | 2.534 @25 °C |
| Density | 2.45 |
| Vapor Pressure | 0 mmHg (approx) (NIOSH, 2024) |
Sodium pyrophosphate; TETRASODIUM PYROPHOSPHATE; 7722-88-5; TSPP; Tetrasodium diphosphate; Phosphotex; Diphosphoric acid, tetrasodium salt; Sodium diphosphate; Victor TSPP; Natrium pyrophosphat; Sodium diphosphate, anhydrous; Pyrophosphoric acid tetrasodium salt; Sodium phosphate (Na4P2O7); Sodium diphosphate (Na4P2O7); Sodium pyrophosphate, tetrabasic; DTXSID9042465
| Regulatory & Food Contact | FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ACIDITY_REGULATOR; EMULSIFIER; SEQUESTRANT: Food Additives ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, FORMULATION AID, HUMECTANT, Group MTDI for phosphorus from all sources, expressed as P TRS 683-JECFA 26/25 |
|---|---|
| GHS notification summary | 6.2% (95 / 1523) |
| GHS notification summary | 6.2% (95 / 1523) |
|---|---|
| Reported hazard statements | H302 (51.1%), H315 (13.1%), H318 (49.6%), H319 (44.2%), H335 (11.7%), H312 (100%), H332 (100%), H413 (100%) |
This chemical does not meet GHS hazard criteria for 6.2% (95 of 1523) of reports.
H302 (51.1%): Harmful if swallowed [Warning Acute toxicity, oral]
Sodium diphosphate tetrabasic · CAS 1004291-85-3 · Na4P2O7. UNII O352864B8Z. Melting Point: 1810 °F (NIOSH, 2024); Melting Point: 988 °C; Melting Point: 993 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 二磷酸四钠