Tetrasodium pyrophosphate CAS#7722-88-5
Versatile Industrial Applications – Sodium pyrophosphate serves as a water softener, thickening agent, dispersing agent, wool de-fatting agent, metal cleaner, and a builder in soaps and synthetic detergents.
Effective Buffering and Chelating Agent – It functions as a buffering agent in laboratories and as a chelating agent in antimicrobial studies, supporting precise chemical reactions and microbial control.
Dental and Oral Care Benefits – Acts as a tartar control agent in toothpaste and dental floss, contributing to oral hygiene.
Food Additive and Safety Use – Commonly used as a food additive in products like chicken nuggets, crab meat, and canned tuna, ensuring product quality and stability.
Products Description of Tetrasodium Pyrophosphate CAS#7722-88-5
Tetrasodium pyrophosphate, also known as Sodium pyrophosphate or TSPP, is widely used in laboratories as a buffering agent. It is particularly effective in preparing EDTA-sodium pyrophosphate extraction buffers for microcystin analysis in soil samples. This compound appears as an odorless, white powder or granules. It has broad industrial applications, including use as a water softener, thickening agent, dispersing agent, wool de-fatting agent, metal cleaner, and a builder in soaps and synthetic detergents. It also functions as a general sequestering agent and is utilized in the electrodeposition of metals. In addition, TSPP serves as a tartar control agent in toothpaste and dental floss, acts as a chelating agent in antimicrobial studies, and is employed as a food additive in products such as chicken nuggets, crab meat, and canned tuna.
Parameters
| Melting point | 80 °C |
| Boiling point | 93.8 °C |
| density | 2.53 g/mL at 25 °C(lit.) |
| vapor pressure | 0Pa at 20℃ |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| form | Granular |
| color | White |
| Specific Gravity | 2.534 |
| Odor | Odorless |
| PH Range | 10.3 |
| Water Solubility | Soluble in water. Insoluble in ethyl alcohol. |
| Sensitive | Hygroscopic |
| Merck | 149240 |
| Exposure limits | NIOSH: TWA 5 mg/m3 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | FQENQNTWSFEDLI-UHFFFAOYSA-J |
| LogP | -3.42 |
| CAS DataBase Reference | 7722-88-5(CAS DataBase Reference) |
| EPA Substance Registry System | Tetrasodium pyrophosphate (7722-88-5) |
Safety Information
| Hazard Codes | Xi,Xn |
| Risk Statements | 36/37/38-41-22 |
| Safety Statements | 26-36-39 |
| OEB | B |
| OEL | TWA: 5 mg/m3 |
| WGK Germany | 3 |
| RTECS | UX7350000 |
| TSCA | Yes |
| HS Code | 28353990 |
| Hazardous | 7722-88-5(Hazardous Substances Data) |
Product Application of Tetrasodium Pyrophosphate CAS#7722-88-5
Tetrasodium pyrophosphate is a mildly alkaline compound with a pH of around 10, acting as a coagulant, emulsifier, and sequestrant. It is moderately soluble in water, with a solubility of 0.8 g/100 mL at 25 °C. It is used as a coagulant in non-cooked instant puddings to provide thickening, and in cheese to reduce meltability and fat separation. The compound also functions as a dispersant in malted milk and chocolate drink powders and helps prevent crystal formation in canned tuna. Commonly referred to as sodium pyrophosphate, tetrasodium diphosphate, or TSPP, it is a non-toxic and biocompatible compound. Additionally, it is employed as an electroactive medium for surface coating exfoliation and as a functional additive in the food industry.
