Standardization of ph buffers

Potassium Tetra oxalate, 0.05 M (pH 1.68 at 25°C): Dissolve 3.1525 g of KH3(C2O4)2. 2H2O in purified water to make 250 mL. Potassium Biphthalate, 0.05 M (pH 4.01 at 25°C): Dissolve 2.5300 g of KHC8H4O4, previously dried at 110°C for 1 hour, in purified water to make 250 mL.
Equimolal Phosphate, 0.05 M (pH 6.86 at 25°C): Dissolve 0.8825 g of anhydrous disodium hydrogen phosphate (Na2HPO4) and 0.8475 g of potassium dihydrogen phosphate (KH2PO4), each previously dried at 120°C for 2 hours, in purified water to make 250 mL.
STANDARDIZATION, General Testing Procedure, potassium dihydrogen

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OFLOTAL - OR

Ofloxacin - 200mg + Orinidazole-500mg, Model of pack:10x10's, Packing:BlisterOfloxacin - 200mg + Orinidazole-500mg, OFLOTAL - OR TABLETS

Table of contents (toc) for republic of uzbekistan

Table of contents for dossier requirments (republic of uzbekistan). Toc for republic of uzbekistan , toc formate for dossier

Preparation of mercuric acetate solution 10 percent

Pour about 75 ml of Glacial Acetic Acid into a 250 ml capacity beaker. Weigh 10.0 grams of Mercuric Acetate LR and transfer slowly, into above-said beaker, though it‘s sidewalls, while gentle mixing by using a glass rod. Transfer prepared solution into a 100 ml volumetric flask, by using a glass funnel. Rinse the beaker and funnel with few ml of Glacial Acetic Acid, and allow to add into the contents of volumetric flask. Make up the volumetric flask to mark with Glacial Acetic Acid , remove the funnel, keep the lid to close the volumetric flask and shake gently to mix the solution. Transfer the prepared solution into a suitable container and label with all necessary details. The resultant solution is having the concentration of 10.0% w/v. Mercuric Acetate , Glacial Acetic Acid , Glass funnel, Volumetric flask

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