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pyrophosphoric acid, disodium salt
Notes:
Employed in food processing as a preservative, emulsifying agent and leavening agent
Disodium pyrophosphate or sodium acid pyrophosphate is a buffering and chelating agent, with many food and industrial uses. (Wikipedia)
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| CAS Number: | 7758-16-9 |  3D/inchi
|
| ECHA EINECS - REACH Pre-Reg: | 231-835-0 | |
| FDA UNII: | H5WVD9LZUD | |
| MDL: | MFCD00014246 | |
| Molecular Weight: | 221.93740256 | |
| Formula: | H2 Na2 O7 P2 | |
| NMR Predictor: | Predict (works with chrome or firefox) | |
Category: raising agents, buffering agents, sequestrants, acidity regulators
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
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| PubMed: | Search |
| NCBI: | Search |
| FDA/DG SANTE Petitions, Reviews, Notices: | |
| 182.1087 | Sodium acid pyrophosphate View - review |
| JECFA Food Additive: | Disodium Pyrophosphate |
| GSFA Codex: | Disodium diphosphate (450(i)) |
| FDA Mainterm (SATF): | 7758-16-9 ; SODIUM ACID PYROPHOSPHATE |
| FDA Regulation: | |
| FDA PART 133 -- CHEESES AND RELATED CHEESE PRODUCTS Subpart B--Requirements for Specific Standardized Cheese and Related Products Sec. 133.169 Pasteurized process cheese. FDA PART 133 -- CHEESES AND RELATED CHEESE PRODUCTS Subpart B--Requirements for Specific Standardized Cheese and Related Products Sec. 133.173 Pasteurized process cheese food. FDA PART 133 -- CHEESES AND RELATED CHEESE PRODUCTS Subpart B--Requirements for Specific Standardized Cheese and Related Products Sec. 133.179 Pasteurized process cheese spread. FDA PART 137 -- CEREAL FLOURS AND RELATED PRODUCTS Subpart B--Requirements for Specific Standardized Cereal Flours and Related Products Sec. 137.180 Self-rising flour. FDA PART 161 -- FISH AND SHELLFISH Subpart B--Requirements for Specific Standardized Fish and Shellfish Sec. 161.190 Canned tuna. FDA PART 182 -- SUBSTANCES GENERALLY RECOGNIZED AS SAFE Subpart B--Multiple Purpose GRAS Food Substances Sec. 182.1087 Sodium acid pyrophosphate. | |
Physical Properties:
| Appearance: | white crystalline powder (est) |
| Assay: | 95.00 to 100.00 % |
| Food Chemicals Codex Listed: | No |
| Flash Point: | 32.00 °F. TCC ( 0.00 °C. ) (est) |
| logP (o/w): | -3.420 (est) |
| Soluble in: | |
| water, 1e+006 mg/L @ 25 °C (est) | |
Organoleptic Properties:
| Odor and/or flavor descriptions from others (if found). | |
Cosmetic Information:
| CosIng: | cosmetic data |
| Cosmetic Uses: |
anticorrosive agents buffering agents chelating agents |
Suppliers:
Safety Information:
| Preferred SDS: View | |
| Hazards identification | |
| Classification of the substance or mixture | |
| GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) | |
| None found. | |
| GHS Label elements, including precautionary statements | |
| Pictogram | |
| Hazard statement(s) | |
| None found. | |
| Precautionary statement(s) | |
| None found. | |
| Oral/Parenteral Toxicity: | |
|
oral-mouse LD50 2650 mg/kg Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957. intravenous-mouse LD50 59 mg/kg Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957. intraperitoneal-mouse LD50 1000 mg/kg Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 24, 1957. | |
| Dermal Toxicity: | |
|
subcutaneous-mouse LD50 480 mg/kg Arzneimittel-Forschung. Drug Research. Vol. 7, Pg. 445, 1957. skin-rabbit LD > 300 mg/kg Acute Toxicity Data. Journal of the American College of Toxicology, Part B. Vol. 1, Pg. 47, 1990. | |
| Inhalation Toxicity: | |
| Not determined | |
Safety in Use Information:
| Category: | raising agents, buffering agents, sequestrants, acidity regulators | ||
| Recommendation for disodium pyrophosphate usage levels up to: | |||
| not for fragrance use. | |||
| Recommendation for disodium pyrophosphate flavor usage levels up to: | |||
| not for flavor use. | |||
Safety References:
| European Food Safety Authority (EFSA) reference(s): | |
| Scientific Opinion on the safety evaluation of the active substances, iron, polyethyleneglycol, disodium pyrophosphate, monosodium phosphate and sodium chloride for use in food contact materials View page or View pdf | |
| Assessment of one published review on health risks associated with phosphate additives in food View page or View pdf | |
| EPI System: | View |
| AIDS Citations: | Search |
| Cancer Citations: | Search |
| Toxicology Citations: | Search |
| EPA Substance Registry Services (TSCA): | 7758-16-9 |
| EPA ACToR: | Toxicology Data |
| EPA Substance Registry Services (SRS): | Registry |
| Laboratory Chemical Safety Summary : | 24451 |
| National Institute of Allergy and Infectious Diseases: | Data |
| WGK Germany: | 2 |
| disodium [hydroxy(oxido)phosphoryl] hydrogen phosphate | |
| Chemidplus: | 0007758169 |
| RTECS: | UX6475000 for cas# 7758-16-9 |
References:
| disodium [hydroxy(oxido)phosphoryl] hydrogen phosphate | |
| NIST Chemistry WebBook: | Search Inchi |
| Canada Domestic Sub. List: | 7758-16-9 |
| Pubchem (cid): | 24451 |
| Pubchem (sid): | 134989989 |
Other Information:
| (IUPAC): | Atomic Weights of the Elements 2011 (pdf) |
| Videos: | The Periodic Table of Videos |
| tgsc: | Atomic Weights use for this web site |
| (IUPAC): | Periodic Table of the Elements |
| FDA Substances Added to Food (formerly EAFUS): | View |
| CHEMBL: | View |
| HMDB (The Human Metabolome Database): | Search |
| FooDB: | FDB014651 |
| Export Tariff Code: | 2835.39.5000 |
| FDA Listing of Food Additive Status: | View |
| ChemSpider: | View |
| Wikipedia: | View |
| Formulations/Preparations: grades: technical; food; fcc. hexahydrate | |
Potential Blenders and core components note
| None Found | ||
Potential Uses:
| None Found |
Occurrence (nature, food, other): note
| not found in nature |
Synonyms:
| diphosphoric acid, disodium salt | |
| disodium [hydroxy(oxido)phosphoryl] hydrogen phosphate | |
| disodium acid pyrophosphate | |
| disodium dihydrogen diphosphate | |
| disodium dihydrogen pyrophosphate | |
| disodium dihydrogenpyrophosphate | |
| disodiumpytophosphate | |
| phosphonate, oxybis-, disodium salt | |
| phosphonate, P,P'-oxybis-, sodium salt (1:2) | |
| pyrophosphoric acid disodium salt | |
| pyrophosphoric acid, disodium salt | |
| SAPP | |
| sodium acid pyrophosphate |