Single crystal XRD analysis reveals that the mixed crystal belongs to the trigonal system with space group P3–1c and the cell parameters are, a=16.7228(2) Å, b=16.7228(2) Å, c=18.2742(5) Å, α=β=90°, γ=120°, υ=4425.75(14) Å3 and Z=12. The partial substitution of cation results in defect centers which influence the physical properties. The compound is isomorphous with the ammonium analogue, previously misidentified. Using the Periodic Bond Chain analysis of Hartman-Perdok, the morphology of potassium hydrogen phthalate was determined. Acta Crystallogr C. 2008 Feb;64(Pt 2):m91-3. Potassium Hydrogen Phthalate, also known as hydrogen potassium phthalate or phthalic acid potassium salt, is an acidic salt compound used as a primary standard for acid-base titrations. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error. Appearance. Potassium hydrogen phthalate CAS Number: 877-24-7: Molecular Weight: 204.221: Density: 1.006 g/mL at 20 °C: Boiling Point: 378.3ºC at 760 mmHg: Molecular Formula: C 8 H 5 KO 4: Melting Point: 295-300 °C (dec.)(lit.) KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium phthalate monobasic . Registration dossier . NIH Epub 2007 May 11. Determine the molarity of 500.0 mL of solution that contains 11.271 g of potassium hydrogen phthalate (KHP). Find Similar Structures. Potassium hydrogen phthalate Potassium hydrogen phthalate K C6H4~ COOH~ COO (also known as potassium acid phthalate and in literature abbreviated as KAP) belongs to a series of alkali acid phthalates which crystallize in the orthorhombic system and have been listed by Groth [1]. H2O) single crystals have been grown from an aqueous solution of potassium hydrogen phthalate … Potassium hydrogen phthalate (KHP) crystal is well known for its application in the production of crystal analyzer for long wave X-ray spectrometer , . Structure, properties, spectra, suppliers and links for: Potassium hydrogen oxalate, 127-95-7. Permanent link for this species. Clipboard, Search History, and several other advanced features are temporarily unavailable. From this analysis 10 different F faces ( hkl) resulted which could be arranged according to their morphological importance resulting from the calculation of the Ising critical temperature of the respective two-dimensional connected nets. 77, No. 9. KHP stands for potassium hydrogen phthalate, which has the chemical formula KHC8H4O4. Molar mass. Because of its high purity, you can determine the number of moles of KHP directly from its mass and it is referred to as a primary standard. Acta Crystallogr Sect E Struct Rep Online. KHP possesses piezoelectric, pyroelectric, elastic and nonlinear optical properties , , . The GR ACS brand is an EMD Chemical trademark and indicates this chemical reagent is suitable for use in analytical chemistry and that the product meets or exceeds American Chemical Society (ACS) requirements. 2008 Dec 13;65(Pt 1):m66-7. The molecular structure is based on structures generated from information available in ECHA’s databases. The co-existence of potassium and sodium ions in the crystal is further confirmed by inductively coupled plasma, atomic absorption spectroscopy and energy dispersive X-ray spectroscopy. 2008. By continuing you agree to the use of cookies. formula Molar mass pKa C8H5K04 204.22 g/mol 10 5.4 Describe the principle of constant current coulometric titration. We use cookies to help provide and enhance our service and tailor content and ads. NLM Acta Crystallogr C. 2007 Nov;63(Pt 11):m522-4. Can someone please re-word it or tell me what I have to do to solve this problem. An organouranium coordination polymer containing infinite metal oxide chains. Epub 2007 Oct 13. doi: 10.1107/S0108270107049311. CAS Number: 877-24-7 Formula: C8H5KO4 Density: 1.636 g/mL Freezing Point: 295-300°C Solubility: Water Synonyms: Potassium Biphthalate, Potassium Acid Phthalate Shelf Life: 36 MonthsChemicals for science education are available in easy-to-use formats with instructions for students to be introduced to a variety of subjects. Intramolecular pi-pi stacking in diaquabis(2-hydroxybenzoato-kappaO)bis(1,10-phenanthroline-kappa2N,N')strontium(II). Bis{mu-6,6'-dimethoxy-2,2'-[propane-1,2-diylbis(iminomethylene)]diphenolato}bis[aquacopper(II)] dihydrate. The grown crystals were subjected to various characterization … Chemical structure. The molecular complex consists of a potassium cation coordinated to a proton-bound hydrogen phthalate dimer and two water molecules. PubChem CID. Acta Crystallogr C. 2007 Dec;63(Pt 12):m622-4. MSDS: Chinese USA: Flash Point: 196.7ºC × Molecular Formula C 8 H 5 KO 4; Average mass 204.221 Da; Monoisotopic mass 203.982498 Da; ChemSpider ID 12839 A unit of SRM 84L is supplied as crystalline material in a 60 g unit. CAS: 877-24-7: Molecular Formula: C 8 H 5 KO 4: Molecular Weight (g/mol) 204.22: MDL Number: MFCD00013070: InChI Key: IWZKICVEHNUQTL-UHFFFAOYSA-M: Synonym: potassium hydrogen phthalate,potassium biphthalate,monopotassium phthalate,potassium acid phthalate,hydrogen potassium phthalate,phthalic acid monopotassium salt,1,2-benzenedicarboxylic acid, monopotassium … Problem: Potassium hydrogen phthalate, known as KHP (molar mass = 204.22 g/mol), can be obtained in high purity and is used to determine the concentration of solutions of strong bases by the reactionHP- (aq) + OH-(aq) → H2O(l) + P2-(aq)If a typical titration experiment begins with approximately 0.5 g KHP and has a final volume of about 100 mL, what is an appropriate indicator to use? Crystalline to white solid. Formula: C 8 H 5 KO 4; Molecular weight: 204.2212; IUPAC Standard InChI: ... Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript.  |  It consists of highly purified potassium hydrogen phthalate (KHP), KHC8H4O4. 8. Reduction of phthalic acid with sodium amalgam in the presence of water gives the 1,3-cyclohexadiene derivative. Certified Value:The certified value listed in Table 1 is the mass fraction of total acid (replaceable H+) expressed as KHP. 1.1. C 6 H 4 COOHCOOK = C 8 H 5 KO 4. Acta Crystallogr C. 2009 Jul;65(Pt 7):i39-41. What is the cation of potassium hydrogen phthalate? The vibrational patterns in FT-IR are used for identifying the material and the thermal study by thermogravimetry/differential thermal analysis indicates the stability. https://doi.org/10.1016/j.jcrysgro.2013.03.046. H2O) single crystals have been grown from an aqueous solution of potassium hydrogen phthalate enriched with equimolar concentration sodium hydroxide at room temperature. The title compound, K(+). As potassium hydrogen phthalate is frequently used in the manufacture of buffers, organic carbon standards, acidimetric standards and various other products, the crystallization of a compound with a different stoichiometery from a solution containing the acidimetric standard has important practical implications. 68448708. Synthesis, growth, structure and characterization of potassium lithium hydrogen phthalate mixed crystals Author: Manonmoni, J. Vijila, Ramasamy, ... grown by the slow evaporation solution growth technique from an aqueous solution containing equimolar quantities of potassium hydrogen phthalate (KHP) and lithium carbonate. Registration dossier . Molecular structure. Describe how you would prepare 100.0 mL of 0.0276 M KHP solution from the solution described in question #7. It is a dibasic acid, with p Ka s of 2.89 and 5.51. Epub 2007 Nov 30. Please enable it to take advantage of the complete set of features! doi: 10.1107/S0108270109020885. 295 ° C with decomposition. potassium hydrogen phthalate. C8H6KNaO5. Poly[(μ-5,7-dihydr-oxy-4-oxo-2-phenyl-4H-chromene-8-sulfonato)potassium(I)]. It is water soluble and available in high purity. USA.gov. doi: 10.1107/S0108270107018914. Molecular Formula. Copyright © 2021 Elsevier B.V. or its licensors or contributors. 3. I have to do a pre-lab for my chemistry lab and I'm not understanding this question. This site needs JavaScript to work properly. 7. The compound is isomorphous with the ammonium analogue, previously misidentified. Potassium Hydrogen Phthalate Safety Data Sheet according to Federal Register / Vol. Potassium Hydrogen Phthalate, GR ACS, also known as potassium biphthalate, is used as a primary standard for acid-base titrations. Would you like email updates of new search results? COVID-19 is an emerging, rapidly evolving situation. Typically phthalate esters are prepared from the widely available phthalic anhydride. Synonym: KHP, Phthalic acid monopotassium salt, Potassium biphthalate, Potassium hydrogen phthalate, Potassium phthalate monobasic Linear Formula: HOOCC 6 H 4 … It crystallizes in orthorhombic structure with space group Pca2 1. - Potassium hydrogenphthalate. HHS 1,636g / mL. Identification . The monopotassium salt, potassium hydrogen phthalate is a standard acid in analytical chemistry.  |  Potassium hydrogen phthalate, KHC8H4O4 (abbreviated KHP), is a non-hygroscopic, crystalline, solid that behaves as a monoprotic acid. Epub 2009 Jun 20. … Centore R, De Tommaso G, Iuliano M, Tuzi A. Acta Crystallogr C. 2007 Jun;63(Pt 6):m253-5. Potassium hydrogen phthalate | C8H5KO4 | CID 23676735 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and … The potassium cation resides on a twofold axis in a distorted square-antiprism coordination geometry. Ungraded products supplied by TCI America are gen doi: 10.1107/S0108270107019798. Potassium hydrogen phthalate-sodium hydroxide. Chemical properties of potassium hydrogen phthalate (KHP) and a titration curve obtained from standardizin NaOH b KHP (0.1000 M and 25.00 ml). Structure. Product form : Substance Potassium hydrogen phthalate C8H5KO4 structure Molecular Formula C8H5KO4 Average mass 204.221 Da Density Boiling Point Flash Point Molar Refractivity Polarizability Surface Tension Molar Volume 58 / Monday, March 26, 2012 / Rules and Regulations Date of issue: 11/12/2004 Revision date: 05/23/2017 Supersedes: 07/19/2013 Version: 1.1 05/23/2017 EN (English) Page 1 SECTION 1: Identification . Properties Density. 14 13 10 Molecular 30 35 15 NaOH 25 (ml.) Formula.  |  The potassium cation resides on a twofold axis in a distorted square-antiprism coordination geometry. Water and alcohol. doi: 10.1107/S0108270107050597. Dicopper(II) trihydroxide cyanoureate dihydrate. 204.22 g / mol. Potassium hydrogen phthalate, BioXtra, ≥99.95%, 1.02400 Potassium hydrogen phthalate, Volumetric standard, secondary reference material for alkalimetry, traceable to NIST Standard Reference Material (SRM) Certipur ® Reag. Draw the Lewis structure for the anion of potassium hydrogen phthlate. Acta Crystallogr Sect E Struct Rep Online. Potassium hydrogen phthalate, which is used for the standardization of NaOH, is comprised of a cation and an anion. H2O) single crystals have been grown from an aqueous solution of potassium hydrogen phthalate … ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Synthesis and crystal structure of potassium hydrogen phthalate mixed crystal K. Copyright © 2013 Elsevier B.V. All rights reserved. Potassium hydrogen phthalate. Nomenclature - Potassium biphthalate. - Potassium acid phthalate. The molecular complex consists of a potassium cation coordinated to a proton-bound hydrogen phthalate dimer and two water molecules. Limit your answer to 50 words. Draw the structure of potassium hydrogen phthalate (KHP), write its molecular formula and calculate its molecular weight. Synonyms. Bis[diaquabis(2,2-bipyridine N,N'-dioxide-kappa2O,O')cobalt(II)] xi-octamolybdate dihydrate. When KHP and NaOH combine, a positive hydrogen ion leaves the KHC8H4O4 and a negative hydrogen atom leaves the NaOH. [(C(8)H(5)O(4))(2)H](-).2H(2)O or K(+).C(16)H(11)O(8)(-).2H(2)O, was prepared by slow evaporation of an aqueous solution of potassium hydrogen phthalate.
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