potassium oxide
dipotassium monohydroxide
None found
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dipotassium;hydroxide (Click)
CAS Number: 12136-45-7Picture of molecule
Other: 1242458-87-2
ECHA EINECS - REACH Pre-Reg: 235-227-6
FDA UNII: 58D606078H
Molecular Weight: 95.20377000
Formula: H K2 O
NMR Predictor: Predict (works with chrome or firefox)
Category: buffering agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar: Search
Google Books: Search
Google Scholar: with word "volatile"Search
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Google Scholar: with word "odor"Search
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PubMed: Search
NCBI: Search
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Physical Properties:
Appearance: white crystalline solid (est)
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
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Organoleptic Properties:
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Cosmetic Information:
CosIng: cosmetic data
Cosmetic Uses: buffering agents
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American Elements
Potassium Oxide
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Safety Information:
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
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: buffering agents
Recommendation for potassium oxide usage levels up to:
 not for fragrance use.
Recommendation for potassium oxide flavor usage levels up to:
 not for flavor use.
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Safety References:
EPI System: View
NIOSH International Chemical Safety Cards: search
Toxicology Citations: Search
EPA Substance Registry Services (TSCA): 12136-45-7
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 25520
National Institute of Allergy and Infectious Diseases: Data
WGK Germany: 1
Chemidplus: 0012136457
EPA/NOAA CAMEO: hazardous materials
RTECS: TT3790000 for cas# 12136-45-7
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NIST Chemistry WebBook: Search Inchi
Canada Domestic Sub. List: 12136-45-7
Pubchem (cid): 25520
Pubchem (sid): 134990527
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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
HMDB (The Human Metabolome Database): Search
FooDB: FDB007250
Haz-Map: View
ChemSpider: View
Wikipedia: View
RSC Learn Chemistry: View
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Potential Blenders and core components note
None Found
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Potential Uses:
None Found
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Occurrence (nature, food, other): note
 not found in nature
 cotton seed
Search Trop  Picture
 tamarind fruit
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 dipotassium hydroxide
 dipotassium monohydroxide
 dipotassium monoxide
 potassium monoxide [UN2033] [corrosive]
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PubMed: Sono-synthesis of biodiesel from soybean oil by KF/γ-Al₂O₃ as a nano-solid-base catalyst.
PubMed: Sol-gel derived bioactive glasses with low tendency to crystallize: synthesis, post-sintering bioactivity and possible application for the production of porous scaffolds.
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PubMed: Spectroscopic investigation and optical characterization of Eu3+ ions in K-Nb-Si glasses.
PubMed: Induced leaf intercellular CO₂, photosynthesis, potassium and nitrate retention and strawberry early fruit formation under macronutrient limitation.
PubMed: Mixed alkali effect in Mn2+ doped 20ZnO+xLi2O+(30-x)K2O+50B2O3(5≤x≤25) glasses.
PubMed: [Compositional characteristics and roles of soil mineral substances in depressions between hills in karst region].
PubMed: Fatigue resistance of acrylic resin denture base material reinforced with E-glass fibres.
PubMed: Contribution of molecular dynamics simulations and ab initio calculations to the interpretation of Mg K-edge experimental XANES in K(2)O-MgO-3SiO(2) glass.
PubMed: Optical and dielectric properties of isothermally crystallized nano-KNbO3 in Er3+-doped K2O-Nb2O5-SiO2 glasses.
PubMed: Histopathological changes in rainbow trout (Oncorhynchus mykiss) after exposure to sublethal composite nitrogen fertilizers.
PubMed: Enhanced reactivity of superoxide in water-solid matrices.
PubMed: [Determination of major elements in soil from cancer village by X-ray fluorescence spectrometry].
PubMed: [Determination of major elements in superphosphate by X-ray fluorescence spectrometry].
PubMed: In vitro dissolution behavior of SiO2-MgO-Al2O 3-K2O-B2O3-F glass-ceramic system.
PubMed: Adsorption removal of phosphate from aqueous solution by active red mud.
PubMed: Transmission electron microscopy (TEM) investigations of Mn-oxide rich cathodic material from spent disposable alkaline batteries.
PubMed: Inhibition of conidia germination and mycelial growth of Botrytis cinerea by some alternative chemicals.
PubMed: Macroporous bioactive glass-ceramic scaffolds for tissue engineering.
PubMed: Use of laterite for the removal of fluoride from contaminated drinking water.
PubMed: Correlation between floppy to rigid transitions and non-Arrhenius conductivity in glasses.
PubMed: SiO2-CaO-K2O coatings on alumina and Ti6Al4V substrates for biomedical applications.
PubMed: The crystallization of an aluminosilicate glass in the K2O-Al2O3-SiO2 system.
PubMed: Effects of MgO-CaO-P2O5-Na2O-based additives on mechanical and biological properties of hydroxyapatite.
PubMed: [Effects of nutrient and water regimes on lodging resistance of rice].
PubMed: Pinpointing the source of a lunar meteorite: implications for the evolution of the Moon.
PubMed: Phosphate glasses for tissue engineering: Part 2. Processing and characterisation of a ternary-based P2O5-CaO-Na2O glass fibre system.
PubMed: Phosphate glasses for tissue engineering: Part 1. Processing and characterisation of a ternary-based P2O5-CaO-Na2O glass system.
PubMed: Comparison of the ammonium oxalate extraction of fertilizer for K2O, method 983.02, with the ammonium citrate/EDTA extraction, method 993.31.
PubMed: [Na and Mg K-edge XANES study in silicate glasses].
PubMed: Reactive oxygen species induce swelling and cytochrome c release but not transmembrane depolarization in isolated rat brain mitochondria.
PubMed: [Effects of forms and application rate of nitrogen fertilizer on yield and qualities of tobacco in southeast Tibet].
PubMed: [The effects of fertilization on yield and root diameter of Codonopsis pilosula var. modesla].
PubMed: [Math-model of efficient cultivation of Angelica sinensis].
PubMed: Effect of sodium content on the crystallization behavior of fluoramphibole glass-ceramics.
PubMed: Investigation of the solubility and ion release in the glass system K2O-Na2O-CaO-P2O5.
PubMed: Oxidative stress activates ATMPK6, an Arabidopsis homologue of MAP kinase.
PubMed: 'Fluxes' and chemical solubility in dental porcelains.
PubMed: Compositional dependence of bioactivity of glasses in the system Na2O-K2O-MgO-CaO-B2O3-P2O5-SiO2.
PubMed: 27Al magic-angle spinning nuclear magnetic resonance satellite transition spectroscopy of glasses in the system K2O-Al2O3-SiO2.
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PubMed: [Nutritive physiology of Psoralea corylifolia L].
PubMed: Breccias from the lunar highlands: preliminary petrographic report on apollo 16 samples 60017 and 63335.
PubMed: Potassium Content of Illite.
PubMed: Igneous Rocks of the East Pacific Rise: The alkali volcanic suite appear to be differentiated from a tholeiitic basalt extruded from the mantle.
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