795488

Potassium phosphate monobasic

anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥99%

• 동의어(들): Monopotassium phosphate, Potassium dihydrogen phosphate, prim.-Potassium phosphate
• Linear Formula: KH₂PO₄
• CAS Number: 7778-77-0
• Molecular Weight: 136.09
• EC Number: 231-913-4
• MDL number: MFCD00011401
• UNSPSC 코드: 12352302
• PubChem Substance ID: 329768487
• NACRES: NA.21

속성

• Grade: ACS reagent; anhydrous
• Quality Level: 200
• 제품 라인: Redi-Dri^™
• 분석: ≥99%
• 양식: powder or crystals
• 품질: free-flowing
• 불순물: ≤0.01% Insoluble matter
• 손실: ≤0.2% loss on drying, 105°C
• pH: 4.1-4.5 (25 °C, 5%)
• pKa(25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• mp: 252.6 °C (lit.)
• density: 2.338 g/mL at 25 °C (lit.)
• 음이온 미량물: chloride (Cl^-): ≤0.001%; sulfate (SO₄^2-): ≤0.003%
• 양이온 미량물: Fe: ≤0.002%; Na: ≤0.005%; heavy metals: ≤0.001% (by ICP)
• SMILES string: [K+].OP(O)([O-])=O
• InChI: 1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
• InChI key: GNSKLFRGEWLPPA-UHFFFAOYSA-M

설명

일반 설명

Potassium phosphate monobasic (monopotassium orthophosphate) is a water soluble inorganic salt. Its standard enthalpy of formation has been reported to be −376.1 kcalmol^-1. It acts a starting material in the synthesis of potassium metaphosphate.

Redi-Dri^™ technology eliminates clumping and the need for complicated procedures to keep your salts free-flowing. Keeping your salts dry helps improve your results by giving accurate measurements and easier-to-handle salts and buffers. Rather than drying your salts in an oven or desiccator or breaking them apart manually, Redi-Dri^™ ensures that your salts will remain easy-to-use for months without worrying about anti-caking agents. Even after repeated openings you can be assured that your results are always accurate. Redi-Dri^™ saves you time, energy and money by keeping your salts usable for longer!

애플리케이션

Potassium phosphate monobasic has been used in the preparation of phosphate buffer and phosphate buffered saline (PBS). It has also been used in the preparation of PEG1000 (polyethylene glycol)/potassium phosphate aqueous two-phase systems (ATPS).

특징 및 장점

• Increased efficiency – Eliminate time and effort of loosening hardened powders
• Safety – Avoid risks of using tools of force to break up clumps
• Economy – Faster preparation and solvation increase productivity and reduce costs
• Assured quality – Excellent, expert-tested quality with no anti-caking agents
• Flexible volumes – Available from research amounts to scale-up quantities

법적 정보

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable