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Determination of Silica and Phosphate

  Ø   Apparatus:- ·          10 ml cylinder ·          Silica Crucible ·          Platinum Crucible   Ø   Reagents:- ·          Sulphuric Acid (AR Grade) ·          Nitric Acid (AR Grade) ·          Ammonium Molybdate 10% (w/v) Solution ·          Ammonium Nitrate (AR Grade)   Ø   Procedure:- Take approximately accurately 2 g sample in an accurately pre-weighted Silica Crucible. Then add sufficient amount Sulphuric Acid to wet the solution for digestion. Then digest very carefully in a fume hood. After complete digestion burn the crucible with sample at about 400°C in Muffle Furnace for about 2 hours. Then cool to room temperature. Then wash the residue throu...
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Method for Standardization of 0.1 (N) Sodium Hydroxide Solution

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  Ø   Apparatus:- ·          250 ml conical flask ·          100 ml cylinder ·          50 ml burette   Ø   Reagents:- ·          0.1 (N) Sodium Hydroxide ·          Phenolphthalein   Indicator ·          Potassium Hydrogen Phthalate (A.R Grade)   Ø   Preparation of Solution:- ·          0.1 (N) Sodium Hydroxide:-   Weight accurately 4 g Sodium Hydroxide and dissolve in 1L DM water. ·          Phenolphthalein Indicator:- Dissolve 0.1 g of Phenolphthalein Indicator in 20 ml methyl alcohol and add sufficient water to produce 100 ml.   Ø   Procedure:- Take accurately about 0.4 g Potassium Hy...
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Estimation of Ferrous Iron / Fe(II)

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  Ø   Apparatus:- ·          250 ml conical flask ·          100 ml cylinder ·          50 ml burette ·          10 ml pipette Ø   Reagents:- ·          0.1 (N) Potassium Dichromate Solution ·          Barium Diphenylamine Sulfonate (BDS) Indicator   ·          Sulphuric Acid (A.R. Grade) ·          Phosphoric Acid (A.R. Grade) Ø   Preparation of Solution:- ·          0.1 (N) Potassium Dichromate Solution:-   Weight accurately 4.903 g Potassium Dichromate and dissolve in 1L DM water. ·          Barium Diphenylamine Sulfonate (BDS) I...
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Location: India
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Method for Preparation and Standardization of 0.1 (N) Iodine Solution

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  Ø   Apparatus:- ·          250 ml Iodine flask ·          100 ml Cylinder ·          50 ml Burette ·          1000 ml Volumetric Flask ·          250 ml Beaker Ø   Reagents:- ·          Iodine Resublimed ·          Starch Indicator ·          Arsenic Trioxide (A.R. Grade) ·          Potassium Iodide (A.R Grade) ·          Hydrochloric Acid (A.R Grade) Ø   Preparation of Solution:- ·          0.1 (N) Iodine Solution:-   Weight accurately 14 g Iodine Resublimed in a 1000 ml volumetric flask and keep cl...
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Method for Preparation and Standardization of 0.1 (N) Potassium Permanganate Solution

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  Ø    Ø  Apparatus:- ·          500 ml conical flask ·          1L Volumetric Flask ·          100 ml Cylinder ·          50 ml Burette ·          250 ml Beaker Ø   Reagents:- ·          Potassium Permanganate (A.R Grade) ·          Sodium Oxalate (A.R. Grade) ·          Sulphuric Acid (A.R Grade) Ø   Preparation of Solution:- ·          0.1 (N) Potassium Permanganate Solution:-  Weight accurately 3.3 g Potassium Permanganate (A.R. Grade) in a 1000 ml volumetric flask and dissolve with DM Water and make up to 1L with DM Water. Then heat on a steam bath for two hours. Cover a...
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Determination of Sodium Hypophosphite Monohydrate Content

  Ø   Apparatus:- ·          250 ml iodine flask ·          100 ml cylinder ·          50 ml burette ·          10 ml graduated pipette ·          2 ml bulb pipette Ø   Reagents:- ·          0.1 (N) Sodium Thiosulphate Solution ·          0.1 (N) Iodine Solution ·          Starch Indicator ·          6 (N) Hydrochloric Acid Ø   Preparation of Solution:- ·          0.1 (N) Sodium Thiosulphate :-   Weight accurately 25 g Sodium Thiosulphate (A.R Grade) and about 0.2 g Sodium Carbonate. Dissolve it in 1000 ml DM water. ·     ...
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