Potassium Phosphate Monobasic
- CAS No.
- 7778-77-0
- Chemical Name:
- Potassium Phosphate Monobasic
- Synonyms
- POTASSIUM DIHYDROGEN PHOSPHATE;MONOPOTASSIUM PHOSPHATE;MKP;MONOBASIC POTASSIUM PHOSPHATE;POTASSIUM PHOSPHATE MONOHYDRATE;POTASSIUM DIHYDROGEN ORTHOPHOSPHATE;POTASSIUM PHOSPHATE, MONOBASIC;kdp;POTASSIUM ORTHOPHOSPHATE;Potassium dihydrogen phosphate anhydrous
- CBNumber:
- CB6122627
- Molecular Formula:
- H2KO4P
- Molecular Weight:
- 136.085541
- MOL File:
- 7778-77-0.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/7/1 14:39:02
Melting point | 252.6 °C (lit.) |
---|---|
Boiling point | > 450 °C |
Density | 2.338 g/mL at 25 °C (lit.) |
vapor pressure | 0Pa at 25℃ |
storage temp. | Store at +5°C to +30°C. |
solubility | H2O: 1.5 M at 20 °C, clear, colorless |
form | powder |
Specific Gravity | 2.338 |
color | White transparent |
PH | 4.2-4.6 (20g/l, H2O, 20℃) |
pka | (1) 2.15, (2) 6.82, (3) 12.38 (at 25℃) |
Odor | Odorless |
Water Solubility | 222 g/L (20 ºC) |
Sensitive | Hygroscopic |
Decomposition | 253 °C |
λmax |
λ: 260 nm Amax: 0.046 λ: 280 nm Amax: 0.040 |
Merck | 14,7659 |
Stability | Hygroscopic |
InChIKey | GNSKLFRGEWLPPA-UHFFFAOYSA-M |
CAS DataBase Reference | 7778-77-0(CAS DataBase Reference) |
EPA Substance Registry System | Monopotassium phosphate (7778-77-0) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | GHS07 |
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Signal word | Warning | |||||||||
Hazard statements | H313-H315-H319 | |||||||||
Precautionary statements | P264-P280a-P305+P351+P338-P321-P332+P313-P337+P313 | |||||||||
Hazard Codes | ||||||||||
HS Code | 2835240000 | |||||||||
Toxicity | LD50 skin in rabbit: > 4640mg/kg | |||||||||
NFPA 704 |
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Potassium Phosphate Monobasic price More Price(92)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich(India) | SRP5099 | WNK1 (181-507), active, GST tagged human PRECISIO? Kinase, recombinant, expressed in baculovirus infected Sf9 cells, ≥70% (SDS-PAGE), buffered aqueous glycerol solution | 7778-77-0 | 10μG | ₹50149.8 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | SAB2900175 | Anti-PRKWNK1 (AB2) antibody produced in rabbit affinity isolated antibody, buffered aqueous solution | 7778-77-0 | 50μG | ₹70007.7 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | RDD020 | Potassium phosphate monobasic anhydrous, free-flowing, Redi-Dri?, ReagentPlus?, ≥99.0% (titration) | 7778-77-0 | 500G | ₹10543.55 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | RDD020 | Potassium phosphate monobasic anhydrous, free-flowing, Redi-Dri?, ReagentPlus?, ≥99.0% (titration) | 7778-77-0 | 1KG | ₹13650.33 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | SAB2900174 | Anti-PRKWNK1 (AB1) antibody produced in rabbit affinity isolated antibody, buffered aqueous solution | 7778-77-0 | 50μG | ₹70007.7 | 2022-06-14 | Buy |
Potassium Phosphate Monobasic Chemical Properties,Uses,Production
Chemical Properties
White powder
Physical properties
Colorless crystals or white granular powder; tetragonal structure; deliquesces; density 2.338 g/cm3; melts at 252.6°C; soluble in water 33 g/100mL at 25°C; pH 4.4-4.7; insoluble in alcohol.
Uses
Potassium Dihydrogen is a buffer, neutralizing agent, and sequestrant. It is mildly acid, with a ph of 4.5, and fairly soluble in water, with a solubility of 25 g in 100 ml at 25°c. It is used in whole eggs for color preservation and is also used in low-sodium products, milk products, and meat products. Typical usage ranges from 0.1 to 0.5%. It is also termed monopotassium phosphate or thophosphate, potassium phosphate monobasic, and monopotassium monophosphate.
Preparation
Monopotassium phosphate may be prepared by partial neutralization of phosphoric acid with potassium hydroxide in equimolar amounts:H3PO4+ KOH →KH2PO4+ H2O.
General Description
Monobasic potassium phosphate crystals are colorless, soluble in water and hygroscopic in nature.Upon heating through 187°C, phase transition occurs in KH2PO4, crystal system changes from tetragonal to monoclinic, lattice parameters at 195°C are α=7.47?, b =7.33?, c =14.49?, α=?=90° and γ=92.2.
Solubility in organics
Insoluble to slightly soluble in ethanol, insoluble in alcohol.
Purification Methods
Dissolve it in boiling distilled water (2mL/g), keep on a boiling water-bath for several hours, then filter it through paper pulp to remove any turbidity. Cool rapidly with constant stirring, and the crystals are collected on to hardened filter paper, using suction, washed twice with ice-cold water, once with 50% EtOH, and dried at 105o. Alternative crystallisations are from water, then 50% EtOH, and again water, or from concentrated aqueous solution by addition of EtOH. It is freed from traces of Cu by extracting its aqueous solution with diphenylthiocarbazone in CCl4, followed by repeated extraction with CCl4 to remove traces of diphenylthiocarbazone.
Potassium Phosphate Monobasic Preparation Products And Raw materials
Raw materials
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chevron_rightSupplier | Tel | Country | ProdList | Advantage | Inquiry |
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GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
Vardhaman P Golechha | 9704422000 | Telangana, India | 294 | 58 | Inquiry |
Rishi Chemical Works Pvt Ltd | +91-3322290068 +91-3322290071 | Kolkata, India | 43 | 58 | Inquiry |
Indiana ChemPort | +91-91-2652638667 +91-7574886711 | Gujarat, India | 85 | 58 | Inquiry |
ALLIPO CHEMICALS | +91-8238998187 +91-8238998187 | Gujarat, India | 32 | 58 | Inquiry |
JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
SAANVI CORP | +91-7208939370 +91-7208939370 | Maharashtra, India | 46 | 58 | Inquiry |
AVA CHEMICALS PVT LTD | +91-8879390046 +91-8879390046 | Maharashtra, India | 74 | 58 | Inquiry |
Kronox Lab Sciences Pvt Ltd | +91-9313231074 +91-9313231074 | Gujarat, India | 240 | 58 | Inquiry |
India Phosphate | +91-9993319656 +91-9993319656 | Madhya Pradesh, India | 61 | 58 | Inquiry |
Supplier | Advantage |
---|---|
GLR Innovations | 58 |
Vardhaman P Golechha | 58 |
Rishi Chemical Works Pvt Ltd | 58 |
Indiana ChemPort | 58 |
ALLIPO CHEMICALS | 58 |
JSK Chemicals | 58 |
SAANVI CORP | 58 |
AVA CHEMICALS PVT LTD | 58 |
Kronox Lab Sciences Pvt Ltd | 58 |
India Phosphate | 58 |
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Related Qustion
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