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 AgentIt 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 BenefitsActs as a tartar control agent in toothpaste and dental floss, contributing to oral hygiene.


Food Additive and Safety UseCommonly used as a food additive in products like chicken nuggets, crab meat, and canned tuna, ensuring product quality and stability.

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Product Description

Product Description of Tetrasodium pyrophosphate CAS#7722-88-5

Tetrasodium pyrophosphate (TSPP) is widely used as a laboratory buffering agent, especially for preparing EDTA-TSPP extraction buffers in soil microcystin analysis. It is an odorless white powder or granular solid. Industrially, it serves as a water softener, thickener, dispersant, wool degreaser, metal cleaner, and detergent builder. It also acts as a sequestering agent for metal electrodeposition. Additionally, TSPP is used for tartar control in oral care products, as a chelating agent in antimicrobial research, and as a food additive in processed meat and canned seafood.


Product Application of Tetrasodium pyrophosphate CAS#7722-88-5

Tetrasodium pyrophosphate (TSPP) is a mildly alkaline substance with a pH of approximately 10, serving as a coagulant, emulsifier and sequestrant. It is moderately soluble in water, with solubility of 0.8 g/100 mL at 25°C. It thickens instant puddings and reduces melting and fat separation in cheese. It also acts as a dispersant in malted milk and chocolate powder, and inhibits crystal formation in canned tuna. Also named tetrasodium diphosphate, it is non-toxic and biocompatible, used as an electroactive medium for coating exfoliation and a functional additive in food industry.

Product Information

Parameters


Melting point80 °C
Boiling point93.8 °C
density2.53 g/mL at 25 °C(lit.)
vapor pressure0Pa at 20℃
storage temp.Inert atmosphere,Room Temperature
solubilityH2O: 0.1 M at 20 °C, clear, colorless
formGranular
colorWhite
Specific Gravity2.534
OdorOdorless
PH Range10.3
Water SolubilitySoluble in water. Insoluble in ethyl alcohol.
SensitiveHygroscopic
Merck149240
Exposure limitsNIOSH: TWA 5 mg/m3
Stability:Stable. Incompatible with strong oxidizing agents.
InChIKeyFQENQNTWSFEDLI-UHFFFAOYSA-J
LogP-3.42
CAS DataBase Reference7722-88-5(CAS DataBase Reference)
EPA Substance Registry SystemTetrasodium pyrophosphate (7722-88-5)


Safety Information


Hazard CodesXi,Xn
Risk Statements36/37/38-41-22
Safety Statements26-36-39
OEBB
OELTWA: 5 mg/m3
WGK Germany3
RTECSUX7350000
TSCAYes
HS Code28353990
Hazardous7722-88-5(Hazardous Substances Data)


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Q1: Is Huafeng Chemical a manufacturer or a trader?
A: We are a professional service provider specializing in chemical foreign trade. Rather than being limited to the products of a single factory, we leverage the chemical industry cluster in Shandong Province to integrate production resources from multiple high-quality manufacturers. This allows us to offer a wide range of sourcing options—covering various product categories and origins—instead of simply pushing a single product. Furthermore, our core competitiveness lies in our professional foreign trade services (covering documentation, logistics, and regulatory compliance), ensuring a smooth and worry-free procurement process for you.


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A: We strictly adhere to international trade rules (Incoterms® 2020) and accept various payment methods, such as Letters of Credit (L/C) and Telegraphic Transfers (T/T). For new clients, we support small-batch trial orders and can clearly define arbitration clauses and applicable laws within the contract. Additionally, we maintain a robust risk management system to help you mitigate common trade risks, such as exchange rate fluctuations, shipping delays, and document discrepancies.


Q3: Do you have experience serving clients in Russian-speaking regions?
A: Yes. We place great importance on the Russian-speaking market; our team includes Russian-speaking business professionals who are well-versed in the import regulations of Russia and the Eurasian Economic Union (EAEU). We understand the importance of EAC certification to clients in these regions and can assist with related compliance inquiries. We have established connections with chemical traders across various CIS countries and have gained valuable experience in specialized packaging and temperature-controlled shipping designed to withstand harsh local winter conditions.


Q4: How do you guarantee product quality?
A: We implement a strict supplier qualification and periodic audit system. A Certificate of Analysis (COA)—issued by the original manufacturer—is provided with every shipment. We also welcome pre-shipment inspections conducted by internationally recognized third-party agencies such as SGS, BV, or ITS. Should the test results fail to meet the standards specified in the contract, you have the right to reject the goods or request a replacement.

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