"˥$%���_d���.���%�&.�M=ф7�Tgc��`M\��0��B�����RS�/5h[��U�1K\�����t_e6�+�J�F@!�d�v���>ͳ��xy��U+u�5]�-K��gz:mϹ�������*�qC�s`�(��U!7E�-���iq�LXK�gX�ܟ����F>�t�>��/����˦�8�� 3kPdm�.�m@��8�b+d`u[��ᘟw�i�/t�X_��m��A��ǝ�0�� ��� endstream endobj 346 0 obj 433 endobj 347 0 obj << /Filter /FlateDecode /Length 346 0 R >> stream 0000008687 00000 n 1.1.2 Caustic potash (potassium hydroxide), 45 % liquor; anhydrous (solid, flake, ground, or powdered). 0000001271 00000 n Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1). 0000004306 00000 n 0000003758 00000 n 0000008125 00000 n 0000031768 00000 n 0000001625 00000 n 0000008709 00000 n Add through the condenser 2.0 g of citric acid monohydrate, washing the walls of the condenser with 10 mL of water. Any use, including reproduction requires our written permission. 0000006926 00000 n All copyright requests should be addressed to copyright@iso.org. Add 1.5 mL of phosphoric acid, and further adjust with phosphoric acid or potassium hydroxide solution to a pH of 2.5 ± 0.1. Potassium hydroxide is used to identify some species of fungi. 0000003010 00000 n 0000002045 00000 n 0000003717 00000 n 1.1 This test method covers the determination of anionic impurities in 50 % caustic soda (sodium hydroxide) and 50 % caustic potash (potassium hydroxide) solutions using ion chromatography (IC). 0000009270 00000 n Caustic potash, Lye [Potassium hydroxide], Potassium hydrate Odorless, white or slightly yellow lumps, rods, flakes, sticks, or pellets. In this weakened state, the hair is more easily cut by a razor blade. - Replaces ISO Recommendation R 990-1969. 0000002699 00000 n Test for potassium (Vol. 0000043422 00000 n Calculation of the three amounts a), b), and c). The assay was evaluated in terms of linearity, limit of quantitation, specificity, precision, accuracy, and ruggedness. �hD�hB"BJv��K�X"��:G�Ryi���Gq͑�9���b(!؇t��w��D������-q͐���M�B���w����YAl��`��� ,�_��E�l����K�ˢ�SS� F^P;�+w�]����dU�Q��d��?�n��z^ 0000031639 00000 n 0000009292 00000 n There are three ways: a) total alkalinity, b) caustic alkalinity corresponding to the total alkalinity less the alkalinity due to carbonates and c) actual potassium hydroxide corresponding to the total alkalinity less the alkalinity due to carbonates and any hydroxide which may be present. The kits contain the full assay method plus: Bottle 1: Thermostable α-amylase (10 mL, 3,000 U/mL on Ceralpha reagent* at pH 6.5 and 40°C or 1600 ... Potassium hydroxide solution (2 M). 0000005725 00000 n Assay-methods | Pharmaceutical analyses Ph. Standard Test Methods for Chemical Analysis of Caustic Soda and Caustic Potash (Sodium Hydroxide and Potassium Hydroxide) 1. 0000005747 00000 n 4) Passes test PURITY Water insoluble substances A 1 in 20 solution of the sample is complete, clear, and colourless Carbonate Not more than 3.5% (as potassium carbonate) Each ml of 1 N sulfuric acid required between the phenolphthalein and methyl orange endpoints in the "METHOD OF ASSAY" is equivalent to 138.2 mg of K ACID VALUE The acid value IA is the number that expresses, in milligrams the quantity of potassium hydroxide required to neutralise the free acids present in 1 g of the substance. 0000005107 00000 n Opening hours: H���]k�0���+r�.�tZ�at��߯�!4�E���I��Gt��c'ƓX����M�d$���X��9���[�. Cool the solution to 15, add phenolphthalein TS, and titrate with 1 N sulfuric acid VS. At the discharge of the pink color of the indicator, record the volume of acid solution required, then add methyl orange TS, and continue the titration to a persistent pink color. All copyright requests should be addressed to. potassium hydroxide eluent was used for the separation of phosphate and citrate in different pharmaceutical formulations to increase method automation and allow easy method transfer between laboratories. 0000054100 00000 n Reflux in an all-borosilicate glass apparatus with 30 mL of alcohol and 3 mL of potassium hydroxide solution (9 in 10) for 30 minutes. ASSAY—HPLC and UHPLC (isocratic method) Buffer: Dissolve 7.2 g of monobasic potassium phosphate in 1,000 mL of water. 0000003231 00000 n Method for determination of the titre, conventionally expressed as percentages by mass of KOH. Dissolve 10.00 g of the ... (n2 mL of 0.5 M alcoholic potassium hydroxide). Add 112.2 g KOH to 900 mL of deionised water and dissolve by stirring. trailer << /Size 372 /Info 323 0 R /Root 327 0 R /Prev 98956 /ID[<7977fcabff207abdf831858d7a4e8d53>] >> startxref 0 %%EOF 327 0 obj << /Type /Catalog /Pages 325 0 R /Metadata 324 0 R /Outlines 4 0 R /OpenAction [ 329 0 R /XYZ null null null ] /PageMode /UseNone /PageLabels 322 0 R /StructTreeRoot 328 0 R /PieceInfo << /MarkedPDF << /LastModified (D:20020627030746)>> >> /LastModified (D:20020627030746) /MarkInfo << /Marked true /LetterspaceFlags 0 >> >> endobj 328 0 obj << /Type /StructTreeRoot /ClassMap 24 0 R /RoleMap 26 0 R /K 159 0 R /ParentTree 308 0 R /ParentTreeNextKey 5 >> endobj 370 0 obj << /S 48 /O 155 /L 171 /C 187 /Filter /FlateDecode /Length 371 0 R >> stream É grátis para se registrar e ofertar em trabalhos. This monograph for Potassium Hydroxide provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), and aqueous solubility. Assay procedure using 0.1N potassium hydroxide Aliquots of asenapine prepared by dissolving different amounts of drug(10-100mg) in 20 ml of methanol was previously neutralized with 0.1N potassium hydroxide ) aliquots were titrated using previously standardized 0.1N potassium hydroxide using 0000007138 00000 n We are committed to ensuring that our website is accessible to everyone. Abstract. H�b```f``{��d�32 � e����d�� �&30�1�3�0��Xp0�����d=�Q��� �[�&008'00�_9�pm����>�]2 ;K���aa`��B@W,a``td`����l1�#P\��!��\� �� �� endstream endobj 371 0 obj 175 endobj 329 0 obj << /Type /Page /Parent 325 0 R /Resources << /ColorSpace << /CS0 337 0 R /CS1 335 0 R >> /ExtGState << /GS0 367 0 R /GS1 368 0 R >> /Font << /TT0 339 0 R /TT1 338 0 R /TT2 336 0 R /TT3 349 0 R >> /ProcSet [ /PDF /Text ] >> /Contents [ 343 0 R 345 0 R 347 0 R 351 0 R 353 0 R 355 0 R 357 0 R 359 0 R ] /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 /StructParents 0 /Annots 330 0 R >> endobj 330 0 obj [ 331 0 R 332 0 R 333 0 R ] endobj 331 0 obj << /Type /Annot /Subtype /Link /Rect [ 68.88 365.20352 108.91048 378.85062 ] /Border [ 0 0 0 ] /H /I /A 363 0 R /StructParent 1 >> endobj 332 0 obj << /Type /Annot /Subtype /Link /Rect [ 68.88 316.9035 151.32732 330.5506 ] /Border [ 0 0 0 ] /H /I /A 361 0 R /StructParent 2 >> endobj 333 0 obj << /Type /Annot /Subtype /Link /Rect [ 68.88 159.34352 91.19261 172.99062 ] /Border [ 0 0 0 ] /H /I /A 364 0 R /StructParent 3 >> endobj 334 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 0 /Descent -211 /Flags 96 /FontBBox [ -517 -325 1082 1025 ] /FontName /BHHIIO+Arial,Italic /ItalicAngle -15 /StemV 93.856 /FontFile2 369 0 R >> endobj 335 0 obj /DeviceGray endobj 336 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 119 /Widths [ 278 0 0 0 0 0 0 191 333 333 0 0 278 0 278 0 556 556 556 0 0 556 556 556 0 556 0 0 0 0 0 0 0 667 667 722 722 667 611 0 0 278 500 0 0 833 722 0 667 0 722 667 0 0 0 0 0 0 0 0 0 0 0 0 0 556 556 500 556 556 278 0 556 222 0 0 222 833 556 556 556 0 333 500 278 556 500 722 ] /Encoding /WinAnsiEncoding /BaseFont /BHHIIO+Arial,Italic /FontDescriptor 334 0 R >> endobj 337 0 obj [ /ICCBased 365 0 R ] endobj 338 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 148 /Widths [ 278 0 355 0 0 889 0 0 333 333 0 0 278 333 278 278 556 556 556 556 556 556 556 0 556 0 0 278 0 0 0 0 0 667 0 722 722 667 611 0 722 278 0 667 556 833 722 778 667 0 722 667 611 722 667 944 0 667 0 0 0 0 0 0 0 556 556 500 556 556 278 556 556 222 0 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 333 333 ] /Encoding /WinAnsiEncoding /BaseFont /BHHIHD+Arial /FontDescriptor 341 0 R >> endobj 339 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 89 /Widths [ 278 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 722 0 722 722 667 611 0 722 278 0 0 611 833 722 778 667 0 722 667 611 722 0 0 667 667 ] /Encoding /WinAnsiEncoding /BaseFont /BHHIFH+Arial,Bold /FontDescriptor 340 0 R >> endobj 340 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 718 /Descent -211 /Flags 32 /FontBBox [ -628 -376 2034 1048 ] /FontName /BHHIFH+Arial,Bold /ItalicAngle 0 /StemV 144 /FontFile2 362 0 R >> endobj 341 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 718 /Descent -211 /Flags 32 /FontBBox [ -665 -325 2028 1037 ] /FontName /BHHIHD+Arial /ItalicAngle 0 /StemV 94 /XHeight 515 /FontFile2 360 0 R >> endobj 342 0 obj 538 endobj 343 0 obj << /Filter /FlateDecode /Length 342 0 R >> stream

potassium hydroxide assay method

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potassium hydroxide assay method 2020