PRODUCTS

TETRASODIUM PYROPHOSPHATE

TSPP = TETRASODIUM PYROPHOSPHATE

CAS Number: 7722-88-5
EC Number: 231-767-1
Chemical formula: Na4O7P2
Molar mass: 265.900 g·mol−1

Tetrasodium pyrophosphate, also called sodium pyrophosphate, tetrasodium phosphate or TSPP, is an inorganic compound with the formula Na4P2O7.
As a salt, Tetrasodium pyrophosphate is a white, water-soluble solid.
Tetrasodium pyrophosphate is composed of pyrophosphate anion and sodium ions.
Toxicity is approximately twice that of table salt when ingested orally.
Also known is the decahydrate Na4P2O7 · 10(H2O).

Tetrasodium pyrophosphate, also called sodium pyrophosphate, tetrasodium phosphate or TSPP, is a colorless transparent crystalline chemical compound with the formula Na4P2O7.
Tetrasodium pyrophosphate contains the pyrophosphate ion and sodium cation.
Toxicity is approximately twice that of table salt when ingested orally.

There is also a hydrated form, Na4P2O7 · 10.
Sodium pyrophosphate is used as a buffering agent, an emulsifier, a dispersing agent, and a thickening agent, and is often used as a food additive.
Common foods containing sodium pyrophosphate include chicken nuggets, marshmallows, pudding, crab meat, imitation crab, canned tuna, and soy-based meat alternatives and cat foods and cat treats where Tetrasodium pyrophosphate is used as a palatability enhancer.
Tetrasodium pyrophosphate is the active ingredient in Bakewell, the substitute for baking powder's acid component marketed during shortages in World War II.

Tetrasodium pyrophosphate is also used in some common baking powders.
In toothpaste and dental floss, sodium pyrophosphate acts as a tartar control agent, serving to remove calcium and magnesium from saliva and thus preventing them from being deposited on teeth.
Tetrasodium pryophosphate is used in commercial dental rinses before brushing to aid in plaque reduction.

Tetrasodium pyrophosphate is used as a buffering agent, an emulsifier, a dispersing agent, and a thickening agent, and is often used as a food additive.
Common foods containing tetrasodium pyrophosphate include chicken nuggets, marshmallows, pudding, crab meat, imitation crab, canned tuna, and soy-based meat alternatives and cat foods and cat treats where Tetrasodium pyrophosphate is used as a palatability enhancer.

In toothpaste and dental floss, tetrasodium pyrophosphate acts as a tartar control agent, serving to remove calcium and magnesium from saliva and thus preventing them from being deposited on teeth.
Tetrasodium pyrophosphate is used in commercial dental rinses before brushing to aid in plaque reduction.

Tetrasodium pyrophosphate is sometimes used in household detergents to prevent similar deposition on clothing, but due to Tetrasodium pyrophosphate phosphate content Tetrasodium pyrophosphate causes eutrophication of water, promoting algae growth.

Tetrasodium pyrophosphate is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 to < 10 000 tonnes per annum.
Tetrasodium pyrophosphate is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.

Tetrasodium Pyrophosphate, Anhydrous (TSPP) Granular & Powder is an anhydrous, white, crystalline material in powder form.
This product is used as a dispersing agent, sequestrant, buffering agent, protein modifier, and coagulant.

Sodium pyrophosphate, also called Tetrasodium pyrophosphate or TSPP is used in the laboratory as a buffering agent.
The compound has been shown to be useful in the preparation of an EDTA-sodium pyrophosphate extraction buffer for microcystin analysis of soil samples.
Tetrasodium pyrophosphate is an odorless, white powder or granules.
Tetrasodium pyrophosphate is used in water softener, buffering agent, thickening agent, dispersing agent, wool de-fatting agent, metal cleaner, soap and synthetic detergent builder, general sequestering agent, in electrodeposition of metals.

Tetrasodium pyrophosphate also acts as a tartar control agent in toothpaste and dental floss.
In addition, Tetrasodium pyrophosphate is used as a chelating agent in antimicrobial studies.
Tetrasodium pyrophosphate is also used as a food additive in common foods such as chicken nuggets, crab meat and canned tuna.

TSPP is used to modify the proteins enabling them to retain moisture during storage, thawing, and cooking.
TSPP also increases shelf life of the product by sequestering multivalent cations responsible for lipid oxidation and rancidity development.
TSPP is added to improve whipping efficiency and improve foam stability.

Granular TSPP helps to buffer the pH of the processed cheese and interacts with milk proteins to promote emulsification.
This product sequesters iron in potato products to prevent after-cooking blackening and to stabilize color.
To maintain fat dispersion in an ice cream/dessert mix, TSPP may be added so "churning" will not form lumps of butter during freezing.

Tetrasodium pyrophosphate, also known as sodium pyrophosphate, tetrasodium phosphate or TSPP, is a colorless transparent crystalline chemical compound of the formula Na4P2O7.
Tetrasodium pyrophosphate is a salt of pyrophosphate and sodium ions.
Tetrasodium pyrophosphate is often used as a food additive as a buffering agent, emulsifier and thickening agent.
Common foods containing tetrasodium pyrophosphate; chicken nugget, marshmallows, pudding, crab meat, crab meat imitation, canned tuna and soy-based meat alternatives.

Tetrasodium pyrophosphate is used as a tartar control agent in toothpaste and dental floss.
Tetrasodium pyrophosphate is used as water softener in detergents, as an emulsifier to suspend oils and to prevent redeposition on the laundry during washing.
Tetrasodium pyrophosphate is used as an inorganic stabilizer in textile.
Please contact with us about the product details and applications to support you with our technical team.

Tetrasodium Pyrophosphate powder Food grade is being used in the manufacture of cold pudding, ice cream and some dairy and meat products and other applications.
Tetrasodium Pyrophosphate (TSPP) is a colorless transparent crystalline chemical compound containing the pyrophosphate ion and sodium cation.

Sodium diphosphate is an inorganic sodium salt comprised of a diphosphate(4-) anion and four sodium(1+) cations.
More commonly known as tetrasodium pyrophosphate, Tetrasodium pyrophosphate finds much use in the food industry as an emulsifier and in dental hygiene as a calcium-chelating salt.
Tetrasodium pyrophosphate has a role as a food emulsifier, a chelator and a food thickening agent.
Tetrasodium pyrophosphate contains a diphosphate(4-).

A process is provided for manufacturing tetrasodium pyrophosphate from sodium tripolyphosphate and a sodium salt capable of forming sodium carbonate on calcination.
A compound capable of forming sodium carbonate is added to adjust the mol ratio to about 2, the mixture is milled and heated to from 300° C to 700° C.

Tetrasodium pyrophosphate, also known as sodium pyrophosphate, tetrasodium phosphate or TSPP, is a colorless transparent crystalline chemical compound with the formula Na4P2O7.
Tetrasodium pyrophosphate is a salt composed of pyrophosphate and sodium ions.
Toxicity when ingested orally is about twice that of table salt.

Tetrasodium pyrophosphate is produced by the reaction of sodium carbonate with phosphorus grade phosphoric acid to form disodium phosphate, and then heated to 450 °C to form tetrasodium pyrophosphate.
Alternatively, Tetrasodium pyrophosphate can be formed by molecular dehydration of dibasic sodium phosphate at 500 °C (932 °F).

Tetrasodium pyrophosphate (TSPP) is widely used as an emulsifying salt (ES) in process cheese.
Previous reports have indicated that TSPP exhibits some unusual properties, including the gelation of milk proteins at specific ES concentrations.
We studied the effect of various concentrations (0.25–2.75%) of TSPP and cooking times (0–20 min) on the rheological, textural, and physical properties of pasteurized process Cheddar cheese using a central composite rotatable experimental design.
Cheeses were made with a constant pH value to avoid pH as a confounding factor.

Modeling of the textural properties of process cheese made with TSPP exhibited complex behavior, with polynomial models (cubic) giving better predictions (higher coefficient of determination values) than simpler quadratic models.
Meltability indices initially decreased with increasing TSPP concentrations, but above a critical ES concentration (~1.0%) meltability increased at higher TSPP concentrations.
The storage modulus values measured at 70°C for process cheese initially increased with increasing TSPP concentration, but above a concentration of 1% ES, the storage modulus values decreased.
Cooking time had little effect on the various melting or rheological properties.
With an increase in TSPP concentration, the insoluble Ca and P contents increased, suggesting that TSPP addition resulted in the formation of insoluble calcium pyrophosphate complexes; some of which were likely associated with caseins.

A portion of the added TSPP remained in the soluble phase.
The acid-base buffering profiles also indicated that calcium pyrophosphate complexes were formed in cheese made with TSPP.
In milk systems, low levels of TSPP have been shown to induce protein crosslinking and gelation, whereas at higher TSPP concentrations milk gelation was inhibited due to excessive charge repulsion from these calcium pyrophosphate complexes.
We hypothesized that a similar phenomenon was occurring in our process cheese, resulting in the initial reduction in meltability with TSPP addition due to protein crosslinking, but at higher TSPP levels meltability increased due to excessive charge repulsion.

Physical Description of Tetrasodium pyrophosphate:
Tetrasodium pyrophosphate appears as odorless, white powder or granules.
mp: 995°C.
Density: 2.53 g/cm3.
Solubility in water: 3.16 g/100 mL (cold water); 40.26 g/100 mL boiling water.
Tetrasodium pyrophosphate is used as a wool de-fatting agent, in bleaching operations, as a food additive.
The related substance tetrasodium pyrophosphate decahydrate (Na4P2O7*10H2O) occurs as colorless transparent crystals.
Loses Tetrasodium pyrophosphate water when heated to 93.8°C.

Chemical Properties of Tetrasodium pyrophosphate:
Tetrasodium pyrophosphate is a white crystalline powder or colourless crystals with the formula Na4P2O7.
Tetrasodium pyrophosphate contains the pyrophosphate ion and sodium cation.
Toxicity is approximately twice that of table salt when ingested orally.
There is also a hydrated form, Na4P2O7.10H2O.

Tetrasodium pyrophosphate is used as a buffering agent, an emulsifier, a dispersing agent, and a thickening agent, and is often used as a food additive.
Tetrasodium pyrophosphate is widely used as an emulsifying salt (ES) in process cheese.
Common foods containing sodium pyrophosphate include chicken nuggets, marshmallows, pudding, crab meat, imitation crab, canned tuna, and soy-based meat alternatives and cat foods and cat treats where Tetrasodium pyrophosphate is used as a palatability enhancer.
Tetrasodium pyrophosphate is the active ingredient in Bakewell, the substitute for baking powder's acid component marketed during shortages in World War II.
Tetrasodium pyrophosphate is also used in some common baking powders.

Manufacture of Tetrasodium pyrophosphate:
Release to the environment of Tetrasodium pyrophosphate can occur from industrial use: manufacturing of the substance, formulation of mixtures, formulation in materials, in processing aids at industrial sites, in the production of articles and as an intermediate step in further manufacturing of another substance (use of intermediates).

Safety Profile of Tetrasodium pyrophosphate:
Poison by ingestion, intraperitoneal, intravenous, and subcutaneous routes.
Tetrasodium pyrophosphate is not a cholinesterase inhibitor.
When heated to decomposition Tetrasodium pyrophosphate emits toxic fumes of POx and Na2O.

Formulation or re-packing of Tetrasodium pyrophosphate:
Tetrasodium pyrophosphate is used in the following products: pH regulators and water treatment products, water softeners and polymers.
Release to the environment of Tetrasodium pyrophosphate can occur from industrial use: formulation of mixtures, in the production of articles, in processing aids at industrial sites and as processing aid.
Other release to the environment of Tetrasodium pyrophosphate is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use.

Reactivity Profile of Tetrasodium pyrophosphate:
Tetrasodium pyrophosphate is basic.
Reacts exothermically with acids.
Incompatible with strong oxidizing agents.
Decomposes in ethyl alcohol.

Preparation of Tetrasodium pyrophosphate:
Tetrasodium pyrophosphate is formed when pure disodium hydrogen orthophosphate is heated to 500℃ for 5 hours.
The product will contain better than 98 per cent Na4P2O7.
Crystalline masses large enough for optical measurements are produced by heating in platinum to above the melting point of the tetrasodium pyrophosphate, 800°, and cooling slowly.
Higher temperatures or longer heating times do not change the tetrasodium pyrophosphate, as this is the final product in the dehydration of disodium hydrogen orthophosphate.

Production of Tetrasodium pyrophosphate:
Tetrasodium pyrophosphate is produced by the reaction of furnace-grade phosphoric acid with sodium carbonate to form disodium phosphate, which is then heated to 450 °C to form tetrasodium pyrophosphate:
2 Na2HPO4 → Na4P2O7 + H2O

Manufacturing of Tetrasodium pyrophosphate:
Reaction of furnace-grade phosphoric acid with sodium carbonate to form disodium phosphate which is in turn heated to 450 degrees centigrade, forming tetrasodium pyrophosphate.

General Manufacturing Information of Tetrasodium pyrophosphate:

Industry Processing Sectors of Tetrasodium pyrophosphate:
All other basic organic chemical manufacturing
All other chemical product and preparation manufacturing
Food, beverage, and tobacco product manufacturing

Industrial gas manufacturing
Mining (except oil and gas) and support activities
Miscellaneous manufacturing
Plastic material and resin manufacturing

Primary metal manufacturing
Services
Soap, cleaning compound, and toilet preparation manufacturing
Utilities

Benefits of Tetrasodium pyrophosphate:
Buffering agent
Emulsifier
Dispersing agent
Sequestrant
Foaming agent
Protein coagulant

Application of Tetrasodium pyrophosphate:
Tetra Sodium pyrophosphate is used as a buffering agent, also as an emulsifier and as a dispersing agent
Tetra Sodium Pyrophosphate also used as a thickening agent and also often used as a food additive
TSPP is used in common baking powders and also in toothpaste and dental floss as a tartar control
Sometimes TSPP is also used in household detergents

Sodium Pyrophosphate has been shown to enhance the rate of pyrophosphate hydrolysis by nonenzymatic catlysis and by inorganic pyrophoshatase.
Pyrophosphoric Acid can be used for the preparation of vanadyl pyrophosphato methoxide cluster anion.
Pyrophosphoric Acid is used in anion binding of inorganic phosphates due to is ability to form complexes.
Tetrasodium pyrophosphate is used as a buffering agent, an emulsifier, a dispersing agent, and a thickening agent, and is often used as a food additive.

Common foods containing tetrasodium pyrophosphate include chicken nuggets, marshmallows, pudding, crab meat, imitation crab, canned tuna, and soy-based meat alternatives and cat foods and cat treats where Tetrasodium pyrophosphate is used as a palatability enhancer.
In toothpaste and dental floss, tetrasodium pyrophosphate acts as a tartar control agent, serving to remove calcium and magnesium from saliva and thus preventing them from being deposited on teeth.
Tetrasodium pyrophosphate is used in commercial dental rinses before brushing to aid in plaque reduction.
Tetrasodium pyrophosphate is sometimes used in household detergents to prevent similar deposition on clothing, but due to Tetrasodium pyrophosphate phosphate content Tetrasodium pyrophosphate causes eutrophication of water, promoting algae growth.

Tetrasodium pyrophosphate is used as a pH buffer (a substance which maintains a particular acidity level), and as a dough conditioner in soy-based "meat alternatives".
Tetrasodium pyrophosphate promotes binding of proteins to water, binding the soy particles together, and is used for the same purpose in chicken nuggets and imitation crab and lobster products.
Tetrasodium pyrophosphate is a water softener in detergents, and an emulsifier to suspend oils and prevent them from redepositing on clothing in the wash.

As a water softener, Tetrasodium pyrophosphate combines with magnesium to sequester Tetrasodium pyrophosphate from the detergent, without precipitating Tetrasodium pyrophosphate onto the clothing.
As a detergent additive, Tetrasodium pyrophosphate can also "reactivate" detergents or soaps that have combined with calcium to make an insoluble scum.
The Tetrasodium pyrophosphate sequesters the calcium, replacing Tetrasodium pyrophosphate with sodium, which reactivates the detergent or soap, and yet keeps the calcium from precipitating out of solution.
Because phosphates cause "eutrophication" of water (algae grows because of the fertilizing power of phosphates), Tetrasodium pyrophosphate is seldom used as a detergent additive, except in toothpastes.

Flavoured milk
Buttermilk
Cheese slices
Whipped toppings
Instant puddings
No-bake cheesecakes
Egg yolk products
Sausages
Restructured poultry

Phosphates have a wide range of ingredient applications.
See the other phosphates we offer.

Uses of Tetrasodium pyrophosphate:
Tetrasodium pyrophosphate is used as a buffering agent, an emulsifier, a dispersing agent and a thickening agent, and is often used as a food additive.
Common foods containing tetrasodium pyrophosphate are used where Tetrasodium pyrophosphate is used as chicken nuggets, marshmallows, pudding, crabmeat, imitation crab, canned tuna and soy-based meat alternatives, and as cat food and cat breeding.
In toothpaste and dental floss, tetrasodium pyrophosphate acts as a tartar control agent, removing calcium and magnesium from saliva, thereby preventing Tetrasodium pyrophosphate from depositing on the teeth.
Tetrasodium pyrophosphate is used in commercial tooth cleanings before brushing to aid in plaque reduction.

Tetrasodium pyrophosphate is sometimes used in household detergents to prevent clothing-like deposition, but due to Tetrasodium pyrophosphate phosphate content Tetrasodium pyrophosphate causes eutrophication of water, algae growth.
TSPP is used as an acidity maintainer, as a pH buffer, and as a dough conditioner in soy-based meat alternatives.
Tetrasodium pyrophosphate supports the binding of proteins to water, supports the binding of soybean particles together.
Tetrasodium pyrophosphate is used in chicken nuggets and lobster products for the same purpose.

Tetrasodium pyrophosphate is an emulsifier and a source of phosphorus as a nutrient.
Tetrasodium pyrophosphate is used as a buffer in toothpastes, as an emulsifier, and as a detergent aid.
Tetrasodium pyrophosphate removes Ca and Mg ions from saliva, so they do not stay on the tooth.
Tetrasodium pyrophosphate is a thickener in ready puddings.

Tetrasodium pyrophosphate is used as a water softener in detergents, as an emulsifier to suspend oils and to prevent re-deposition on laundry during washing.
Tetrasodium pyrophosphate combines with Mg as a water softener.
As a detergent additive, Tetrasodium pyrophosphate renews the activity of detergents and soaps, combining with calcium to form an insoluble foam.
TSPP; removes calcium, Tetrasodium pyrophosphate is replaced by sodium, which reagents detergent and soap.
Tetrasodium pyrophosphate is used as an inorganic stabilizer in textiles.

Tetrasodium pyrophosphate is used as a water softener, detergent, emulsifying agent, metal cleaner, and nutritional supplement.

Tetrasodium Pyrophosphate is a coagulant, emulsifier, and sequestrant that is mildly alkaline, with a ph of 10.
Tetrasodium pyrophosphate is moderately soluble in water, with a solubility of 0.8 g/100 ml at 25°c.
Tetrasodium pyrophosphate is used as a coagulant in noncooked instant puddings to provide thicken- ing.

Tetrasodium pyrophosphate functions in cheese to reduce the meltability and fat separa- tion.
Tetrasodium pyrophosphate is used as a dispersant in malted milk and chocolate drink powders.
Tetrasodium pyrophosphate prevents crystal formation in tuna.
Tetrasodium pyrophosphate is also termed sodium pyrophosphate, tetrasodium diphosphate, and tspp.

Pharmaceutic aid.
Tetrasodium pyrophosphate (Na4P2O7) is a non-toxic and biocompatible compound used as an electroactive media for exfoliation of the surface coating.
Tetrasodium pyrophosphate is also be used as an additive in the food industry.
Na4P2O7 can be used as an inorganic additive to improve the stability and electrochemical performance of redox flow batteries.

As a water softener; as a metal cleaner; as a dispersing and emulsifying agent.

Buffering Agent
Emulsifier
Dispersing Agent
Thickening Agent
Tartar Control Agent
Toothpaste

Uses at industrial sites of Tetrasodium pyrophosphate:
Tetrasodium pyrophosphate is used in the following products: pH regulators and water treatment products, water softeners and polymers.
Tetrasodium pyrophosphate is used in the following areas: formulation of mixtures and/or re-packaging, mining and municipal supply (e.g. electricity, steam, gas, water) and sewage treatment.
Tetrasodium pyrophosphate is used for the manufacture of: chemicals, metals, fabricated metal products, machinery and vehicles and textile, leather or fur.
Release to the environment of Tetrasodium pyrophosphate can occur from industrial use: in processing aids at industrial sites, formulation of mixtures, in the production of articles and as processing aid.
Other release to the environment of Tetrasodium pyrophosphate is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use.

Industry Uses of Tetrasodium pyrophosphate:
Adsorbents and absorbents
Corrosion inhibitors and anti-scaling agents
Fillers
Intermediates
Plating agents and surface treating agents
Processing aids, not otherwise listed
Sequestering agent
Solids separation agents
Solvents (for cleaning and degreasing)
Surface active agents

Consumer Uses of Tetrasodium pyrophosphate:
Agricultural products (non-pesticidal)
Automotive care products
Building/construction materials not covered elsewhere
Cleaning and furnishing care products
Fabric, textile, and leather products not covered elsewhere

Ink, toner, and colorant products
Laundry and dishwashing products
Metal products not covered elsewhere
Non-TSCA use
Plastic and rubber products not covered elsewhere
Water treatment products

Tetrasodium pyrophosphate is used in the following products: pH regulators and water treatment products, water softeners, cosmetics and personal care products, coating products and fillers, putties, plasters, modelling clay.
Release to the environment of Tetrasodium pyrophosphate can occur from industrial use: formulation of mixtures, in the production of articles and in processing aids at industrial sites.
Other release to the environment of Tetrasodium pyrophosphate is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use.

Widespread uses by professional workers of Tetrasodium pyrophosphate:
Tetrasodium pyrophosphate is used in the following products: pH regulators and water treatment products, water softeners and cosmetics and personal care products.
Tetrasodium pyrophosphate is used in the following areas: formulation of mixtures and/or re-packaging, agriculture, forestry and fishing, building & construction work and municipal supply (e.g. electricity, steam, gas, water) and sewage treatment.
Tetrasodium pyrophosphate is used for the manufacture of: metals, fabricated metal products, chemicals, pulp, paper and paper products, mineral products (e.g. plasters, cement) and machinery and vehicles.
Release to the environment of Tetrasodium pyrophosphate can occur from industrial use: formulation of mixtures and in the production of articles.
Other release to the environment of Tetrasodium pyrophosphate is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use.

Household Products of Tetrasodium pyrophosphate:

Household & Commercial/Institutional Products of Tetrasodium pyrophosphate:
Information on 159 consumer products that contain Tetrasodium pyrophosphate (TSPP) in the following categories is provided:
Auto Products
Commercial / Institutional
Home Maintenance
Personal Care
Pet Care

First Aid of Tetrasodium pyrophosphate:
Eye: If this chemical contacts the eyes, immediately wash the eyes with large amounts of water, occasionally lifting the lower and upper lids.
Get medical attention immediately.
Contact lenses should not be worn when working with this chemical.

Skin: If this chemical contacts the skin, promptly wash the contaminated skin with water.
If this chemical penetrates the clothing, promptly remove the clothing and wash the skin with water.
If irritation persists after washing, get medical attention.

Breathing: If a person breathes large amounts of this chemical, move the exposed person to fresh air at once.
If breathing has stopped, perform mouth-to-mouth resuscitation.
Keep the affected person warm and at rest.
Get medical attention as soon as possible.

Swallow: If this chemical has been swallowed, get medical attention immediately.

Spillage Disposal of Tetrasodium pyrophosphate:
Sweep spilled substance into covered containers.
If appropriate, moisten first to prevent dusting.
Wash away remainder with plenty of water.
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance.

Disposal Methods of Tetrasodium pyrophosphate:
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision.
Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Identifiers of Tetrasodium pyrophosphate:
CAS Number:
7722-88-5
13472-36-1 (decahydrate)
ChEBI: CHEBI:71240
ECHA InfoCard: 100.028.880
EC Number: 231-767-1
E number: E450(iii) (thickeners, ...)
PubChem CID: 24403
RTECS number: UX7350000
UNII:
O352864B8Z
IY3DKB96QW (decahydrate)
CompTox Dashboard (EPA): DTXSID9042465
InChI: InChI=1S/4Na.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5, 6)/q4*+1;/p-4
SMILES: [O-]P(=O)([O-])OP(=O)([O-])[O-].[Na+].[Na+].[Na+].[Na+]

Properties of Tetrasodium pyrophosphate:
Chemical formula: Na4O7P2
Molar mass: 265.900 g·mol−1
Appearance: Colorless or white crystals
Odor: odorless
Density: 2.534 g/cm3
Melting point:
988 °C (1,810 °F; 1,261 K) (anhydrous)
79.5 °C (decahydrate)
Boiling point: decomposes
Solubility in water:
2.61 g/100 mL (0 °C)
6.7 g/100 mL (25 °C)
42.2 g/100 mL (100 °C)
Solubility: insoluble in ammonia, alcohol
Refractive index (nD): 1.425

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 Å²
Heavy Atom Count   : 13
Formal Charge: 0
Complexity: 124
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 5
Compound Is Canonicalized: Yes

Specifications of Tetrasodium pyrophosphate:
Color: White
Quantity: 25mg
Formula Weight: 833.4
Physical Form: Powder
Percent Purity: 0.98
Chemical Name or Material: β-Nicotinamide adenine dinucleotide phosphate reduced tetrasodium salt

Assay: ≥ 95.0 %
Moisture (at 110oC): ≤ 0.30 %
pH (1 % Solution): 10.2 – 10.6
Water Insoluble Matter: ≤ 0.1 %
Phosphate (P2O5): 52.5 – 54.0 %
Loss on Ignition (800oC, 30 mins): ≤ 0.5 %
Fluoride (As F): ≤ 10.0 ppm
Arsenic (As As): ≤ 3.0 ppm
Lead (As Pb): ≤ 3.0 ppm
Cadmium (As Cd): ≤ 1.0 ppm
Heavy Metals (As Pb): ≤ 10.0 ppm
Mercury (As Hg): ≤ 1.0 ppm

Particle Size Distribution:
On 20 mesh (850 μm): ≤ 0.5 %
Through 100 mesh (150 μm): ≥ 80.0 %

Structure of Tetrasodium pyrophosphate:
Crystal structure: monoclinic (decahydrate)

Thermochemistry of Tetrasodium pyrophosphate:
Heat capacity (C): 241 J/mol K
Std molar entropy (So298): 270 J/mol K
Std enthalpy of formation (ΔfH⦵298): -3166 kJ/mol
Gibbs free energy (ΔfG˚): -3001 kJ/mol

Related compounds of Tetrasodium pyrophosphate:
Disodium pyrophosphate

Other anions of Tetrasodium pyrophosphate:
Trisodium phosphate
Pentasodium triphosphate
Sodium hexametaphosphate

Other cations of Tetrasodium pyrophosphate:
Tetrapotassium pyrophosphate
Disodium pyrophosphate

Names of Tetrasodium pyrophosphate:

Regulatory process names of Tetrasodium pyrophosphate:
Anhydrous tetrasodium pyrophosphate
Diphosphoric acid, sodium salt (1:4)
Diphosphoric acid, tetrasodium salt
Natrium pyrophosphat
Phosphotex
Pyrophosphoric acid tetrasodium salt
Sodium diphosphate (Na4P2O7)
Sodium diphosphate, anhydrous
Sodium phosphate (Na4P2O7)
Sodium pyrophosphate
Sodium pyrophosphate (Na4P2O7)
Sodium pyrophosphate, tetrabasic
Tetranatriumpyrophosphat
Tetrasodium diphosphate
Tetrasodium pyrophosphate
Tetrasodium pyrophosphate
tetrasodium pyrophosphate
Tetrasodium pyrophosphate, anhydrous
TSPP
Victor TSPP

CAS names of Tetrasodium pyrophosphate:
Diphosphoric acid, sodium salt (1:4)

IUPAC names of Tetrasodium pyrophosphate:
Diphosphoric acid, tetrasodium salt
phosphono dihydrogen phosphate
Sodium diphosphate tetrabasic, Tetrasodium pyrophosphate, TSPP, tetra-Sodium diphosphate
Sodium pyrophosphate
tetrasodium (phosphonatooxy)phosphonate
tetrasodium (phosphonooxy)phosphonate
Tetrasodium diphosphate
tetrasodium diphosphate
tetrasodium phosphonato phosphate
TETRASODIUM PYROPHOSPHATE
Tetrasodium Pyrophosphate
Tetrasodium pyrophosphate
tetrasodium pyrophosphate
Tetrasodium Pyrophosphate
Tetrasodium pyrophosphate
tetrasodium pyrophosphate
tetrasodium pyrophosphate (TSPP)
Tetrasodium pyrophosphate decahydrate
tetrasodium;phosphonato phosphate
TSPP
Tetrasodium diphosphate

Trade names of Tetrasodium pyrophosphate:
pirofosforan czterosodowy
PRAYPHOS TSPP 108 FG GR
PRAYPHOS TSPP 118 Dental
PRAYPHOS TSPP 118 FG
Prayphos TSPP TG
PURON
Tetranatriumdiphosphat
Tetranatriumpyrophosphat
TETRASODIUM PYROPHOSPHATE
Tetrasodium Pyrophosphate
Tetrasodium pyrophosphate
TETRON
TNPP
TSPP

Other names of Tetrasodium pyrophosphate:
Pyrophosphate
Sodium pyrophosphate
Tetrasodium pyrophosphate (anhydrous)
TSPP

Synonyms of Tetrasodium pyrophosphate:
Sodium pyrophosphate
TETRASODIUM PYROPHOSPHATE
7722-88-5
TSPP
Phosphotex
Tetrasodium diphosphate
Sodium diphosphate
Diphosphoric acid, tetrasodium salt
Victor TSPP
Caswell No. 847
Natrium pyrophosphat
Pyrophosphoric acid tetrasodium salt
Sodium pyrophosphate
Sodium diphosphate, anhydrous
Natrium pyrophosphat
Sodium phosphate (Na4P2O7)
Sodium pyrophosphate tetrabasic
HSDB 854
UNII-O352864B8Z
MFCD00003513
Na4P2O7
CHEBI:71240
O352864B8Z
Sodium pyrophosphate (USAN)
Sodium pyrophosphate, tetrabasic
Tetranatriumpyrophosphat
EINECS 231-767-1
NSC 56751
EPA Pesticide Chemical Code 076405
tetrasodium phosphonato phosphate
Tetrasodium pyrophosphate, anhydride
SODIUMPYROPHOSPHATE
tetra sodium pyrophosphate
EC 231-767-1
DSSTox_CID_22465
DSSTox_RID_80032
4Na.O7P2
DSSTox_GSID_42465
Diphosphoric acid sodium salt
Sodium pyrophosphate anhydrous
DTXSID9042465
Sodium diphosphate (Na4(P2O7))
Tetrasodium pyrophosphate Anhydrous
CS-B1771
Tox21_110033
AKOS015914004
AKOS024418778
Diphosphoric acid, sodium salt (1:4)
NCGC00013687-01
CAS-7722-88-5
FT-0689073
X3333
D05873
E75941
Q418504
1004291-85-3
Sodium pyrophosphate
Diphosphate de tétrasodium
Tetranatriumdiphosphat
Tetrasodium diphosphate
[7722-88-5]
10042-91-8
13472-36-1
14691-80-6
156460-73-0
231-449-2
231-767-1
231-835-0
7558-80-7
7722-88-5
7758-16-9
93269-17-1
Anhydrous tetrasodium pyrophosphate
D05873
Diphosphoric acid sodium salt
Diphosphoric acid tetrasodium salt
DIPHOSPHORIC ACID TRISODIUM SALT
Diphosphoric acid, tetrasodium salt
Diphosphoric acid, tetrasodium saltNatrium pyrophosphatPyrophosphoric acid tetrasodium saltSodium pyrophosphateTSPPTetrasodium pyrophosphate
Disodium pyrophosphate
EINECS 231-767-1
MFCD00003513
Natrium pyrophosphat
Natrium pyrophosphat
Natrium pyrophosphat
Phosphotex
pyrophosphate
Pyrophosphoric acid tetrasodium salt
Pyrophosphoric acid, tetrasodium salt
SODIUM DIPHOSPHATE
Sodium diphosphate (Na4P2O7)
SODIUM DIPHOSPHATE ANHYDROUS
Sodium diphosphate tetrabasic
Sodium diphosphate, anhydrous
Sodium phosphate (pyro)
Sodium pyrophosphate
Sodium pyrophosphate
Sodium pyrophosphate anhydrous
Sodium pyrophosphate tetrabasic
Sodium pyrophosphate(v)
Sodium pyrophosphate, anhydrous
sodium pyrophosphate, tetra-
Sodium pyrophosphate, tetrabasic
Sodium tetrapyrophosphate
SODIUMPYROPHOSPHATE
Tetranatriumpyrophosphat
Tetranatriumpyrophosphat
tetrasodium phosphonato phosphate
tetra-sodium pyrophosphate
TETRASODIUM PYROPHOSPHATE
tetrasodium pyrophosphate anhydrous
tetrasodium;phosphonato phosphate
tetrasodiumpyrophosphate
TSPP
UNII:O352864B8Z
UNII-O352864B8Z
Victor TSPP

MeSH of Tetrasodium pyrophosphate:
anhydrous sodium pyrophosphate
disodium pyrophosphate
sodium diphosphate
sodium pyrophosphate
tetrasodium pyrophosphate
tetrasodium pyrophosphate, 32P2-labeled cpd
tetrasodium pyrophosphate, decahydrate
trisodium pyrophosphate