The shelf life study of 0.1 M Sodium hydroxide volumetric solution at different condition for analytical purpose in Laboratory
The Expiry date of 0.1 M Sodium hydroxide volumetric solution is determined for analytical purpose in Laboratory and the Strength of Volumetric solutions determined by titration against potassium hydrogen Phthalate (KHP). The volumetric solution prepared in distilled water observed that no chemically significant degradation for at least 30 days when stored separately in Normal and dark condition over a period of 30 days . The % RSD of Molarity at Normal condition observed from 0.0993 to 0.0994 % and at Dark condition from 0.0994 to 0.2988 %. The Significant degradation observed when solution stored separately in oven at 35 oC temperature and strength of volumetric solution deviate from 18 th Day . The Degradation of solution strength found to 0. 98 % after storage for 30 days at 35 oC Temperature.
Keywords: Shelf life, Stability, Titrimetric, Primary standard, Hold time study, Degradation.
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