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Sodium diphosphate tetrabasic

CAS 1004291-85-3Na4P2O7MW 265.90

Sodium diphosphate tetrabasic (CAS 1004291-85-3) — formula Na4P2O7, molecular weight 265.90; category organic chemicals.

Specifications

CAS Number1004291-85-3
Molecular FormulaNa4P2O7
Molecular Weight265.90
Melting Point1810 °F (NIOSH, 2024)
ApplicationsCleaning 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
CategoryOrganic Chemicals

Where it is used

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.

Purchase Profile

What this product is

Sodium diphosphate tetrabasic is a carbon-based organic compound with CAS registry number 1004291-85-3 and molecular formula Na4P2O7 (molecular weight 265.90), belonging to the organic chemicals segment of chemical raw materials.

Identification

CAS number: 1004291-85-3

Its molecular formula Na4P2O7 comprises 4 Na, 2 P, 7 O atoms.

Also known as: Sodium diphosphate tetrabasic · TETRASODIUM PYROPHOSPHATE

Category: organic chemicals

Frequently Asked Questions

What is the CAS number of Sodium diphosphate tetrabasic?

The CAS registry number of Sodium diphosphate tetrabasic is 1004291-85-3.

What is the molecular formula and molecular weight of Sodium diphosphate tetrabasic?

Molecular formula Na4P2O7, molecular weight 265.90.

What other names is Sodium diphosphate tetrabasic known by?

It is also registered under: Sodium diphosphate tetrabasic, TETRASODIUM PYROPHOSPHATE.

What are the documented applications of 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.

Which category does Sodium diphosphate tetrabasic belong to?

Category: Organic Chemicals.

PubChem Public Data

Public-database records for Sodium diphosphate tetrabasic (CAS 1004291-85-3), reproduced here for independent cross-checking.

Safety classification and hazard statements

GHS notification summary6.2% (95 / 1523)
Reported hazard statementsH302 (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]

Regulatory listings

Regulatory & Food ContactFDA 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 summary6.2% (95 / 1523)

Physical description and handling notes

  • Liquid; Other Solid; Other Solid; Dry Powder; Large Crystals
  • Colourless or white crystals, or a white crystalline or granular powder. The decahydrate effloresces slightly in dry air
  • Odorless, white powder or granules. [Note: The decahydrate (Na4P2O7+10H2O) is in the form of colorless, transparent crystals.]; [NIOSH]
  • ODOURLESS COLOURLESS OR WHITE CRYSTALS OR POWDER.
  • Odorless, white powder or granules. [Note: The decahydrate (Na4P2O7 • 10H2O) is in the form of colorless, transparent crystals.]
  • CRYSTALS

Reported physical properties

熔点1810 °F (NIOSH, 2024)
熔点988 °C
熔点993 °C
熔点1810 °F
溶解度7 % at 77 °F (NIOSH, 2024)
溶解度(77 °F): 7%
密度2.534
密度2.534 @25 °C
密度2.45
蒸气压0 mmHg (approx) (NIOSH, 2024)

How this substance is indexed

CAS Registry Number1004291-85-3
PubChem CID24403
分子式Na4P2O7
IUPAC 名称tetrasodium;phosphonato phosphate
UNII（FDA）O352864B8Z

Documented uses

  • CIR ingredient: Tetrasodium Pyrophosphate
  • Used as a water softener, detergent, emulsifying agent, metal cleaner, and nutritional supplement; [ACGIH]
  • Acid and Alkali Cleaning of Metals [Category: Clean]
  • IN CLEANING CMPD, OIL-WELL DRILLING, WATER TREATMENT, CHEESE EMULSIFICATION; AS GENERAL SEQUESTERING AGENT, TO REMOVE RUST STAINS; AS INGREDIENT OF ONE-FLUID INK ERADICATORS, IN ELECTRODEPOSITION OF METALS
  • TEXTILE DYEING; SCOURING OF WOOL; BUFFER; SEQUESTRANT; NUTRIENT SUPPLEMENT; FOOD ADDITIVE
  • INDUST & INSTITUTIONAL DETERGENT BUILDER; IN WATER TREATMENT; IN HOUSEHOLD LAUNDRY DETERGENTS; IN PROCESSED CHEESES; IN OTHER FOOD APPLICATIONS; IN TEXTILE & CLAY PROCESSING, ELASTOMERS, & PAPER PROCESSING

Names this substance appears under

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

Computed molecular descriptors

分子量265.90
氢键供体数0
氢键受体数7
可旋转键数0
精确质量265.87100346
单同位素质量265.87100346
拓扑极性表面积136
重原子数13
形式电荷0
复杂度124

Database abstract

Sodium diphosphate tetrabasic · CAS 1004291-85-3 · Na4P2O7. UNII O352864B8Z. 熔点: 1810 °F (NIOSH, 2024); 熔点: 988 °C; 熔点: 993 °C.

Source: PubChem / Wikidata; the batch COA governs where values differ.

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