potassium pyrophosphate
diphosphoric acid potassium salt (1:4)
 
Notes:
Used in foods as a buffering agent, pH control agent, alkalinity source, dispersing agent, protein modifier, coagulant, sequestrant and nutrient source
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tetrapotassium phosphonato phosphate (Click)
CAS Number: 7320-34-5Picture of molecule
ECHA EINECS - REACH Pre-Reg: 230-785-7
FDA UNII: B9W4019H5G
Nikkaji Web: J9.215K
MDL: MFCD00011393
Molecular Weight: 330.33512400
Formula: K4 O7 P2
NMR Predictor: Predict (works with chrome or firefox)
Category: emulsifiers, texturizers, acidity regulators
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
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 FDA/DG SANTE Petitions, Reviews, Notices:
1975 Potassium pyrophosphate View-review
JECFA Food Additive: Tetrapotassium Pyrophosphate
GSFA Codex: Tetrapotassium diphosphate (450(v))
FDA Mainterm: POTASSIUM PYROPHOSPHATE
FDA Regulation:
FDA PART 173 -- SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN CONSUMPTION
Subpart D--Specific Usage Additives
Sec. 173.315 Chemicals used in washing or to assist in the peeling of fruits and vegetables.
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Physical Properties:
Appearance: white crystalline powder (est)
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
Soluble in:
 water, 1e+006 mg/L @ 25 °C (est)
Insoluble in:
 alcohol
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Organoleptic Properties:
  
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Cosmetic Information:
CosIng: cosmetic data
Cosmetic Uses: buffering agents
chelating agents
oral care agents
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Suppliers:
Charkit Chemical
TETRAPOTASSIUM PYROPHOSPHATE 60% SOLUTION TECH GRADE (TKPP)
Covalent Chemical
Tetrapotassium Pyrophosphate
Foodchem International
Potassium Pyrophosphate
Graham Chemical
Tetrapotassium Pyrophosphate
Lianyungang Yunbo Chemical
POTASSIUM PYROPHOSPHATE
Sigma-Aldrich: Aldrich
For experimental / research use only.
Potassium pyrophosphate 97%
Zhong Ya Chemical
Potassium Pyrophosphate
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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-rat LDLo  4640 mg/kg
BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) GASTROINTESTINAL: OTHER CHANGES
National Technical Information Service. Vol. OTS0571153

Dermal Toxicity:
skin-rabbit LD50 > 4640 mg/kg
SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"
National Technical Information Service. Vol. OTS0571153

Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: emulsifiers, texturizers, acidity regulators
Recommendation for potassium pyrophosphate usage levels up to:
 not for fragrance use.
 
Recommendation for potassium pyrophosphate flavor usage levels up to:
 not for flavor use.
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Safety References:
European Food Safety Authority (EFSA) reference(s):
Assessment of one published review on health risks associated with phosphate additives in food
View page or View pdf
EPI System: View
NIOSH International Chemical Safety Cards: search
Cancer Citations: Search
Toxicology Citations: Search
Env. Mutagen Info. Center: Search
EPA Substance Registry Services (TSCA): 7320-34-5
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 23740
National Institute of Allergy and Infectious Diseases: Data
WGK Germany: 2
 tetrapotassium phosphonato phosphate
Chemidplus: 0007320345
EPA/NOAA CAMEO: hazardous materials
RTECS: 7320-34-5
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References:
 tetrapotassium phosphonato phosphate
NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 7320-34-5
Pubchem (cid): 23740
Pubchem (sid): 134988474
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Other Information:
(IUPAC): Atomic Weights of the Elements 2009
(IUPAC): Atomic Weights of the Elements 2009 (pdf)
Videos: The Periodic Table of Videos
tgsc: Atomic Weights use for this web site
(IUPAC): Periodic Table of the Elements
FDA Everything Added to Food in the United States (EAFUS): View
HMDB (The Human Metabolome Database): Search
FooDB: FDB013381
Export Tariff Code: 2835.39.1000
Household Products: Search
ChemSpider: View
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Potential Blenders and core components note
 
None Found
 
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Potential Uses:
 buffering agents 
 chelating agents 
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Occurrence (nature, food, other): note
 not found in nature
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Synonyms:
 diphosphoric acid potassium salt (1:4)
 potassium diphosphate
 potassium pyrophosphate
 pyrophosphoric acid tetrapotassium salt
 tetrapotassium phosphonato phosphate
 tetrapotassium pyrophosphate
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