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Standard operating procedure for pH meter

 1). pH meters -  Objective:                      To demonstrate how to use a standard pH meter in the TRACES Centre and undergraduate laboratories. This process explains how to accurately test a solution's pH.  2. Scope: Digital pH meters in the TRACES Centre and the UG Laboratory are affected. These devices include (but are not limited to) Sartorius, Oakton, and Mettler-Toldeo.  3. Responsibility :   Designated persons in the research lab are responsible for training employees and students on this protocol and ensuring that it is followed. It is the responsibility of selected persons (Staff or Students) to adhere to the procedure's guidelines.  4. Equipment :  • pH meter, digital  • Double-junction Ag/AgCl electrode pH electrode  • ATC probe (automatic temperature control) (if available)  • Transfer utensils, pipettes, spatula or capillaries  • Clean stir bars on a stir p...
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Chemical formula

 Chemical formula for some compounds


  1.  Common salt ➠ NaCl
  2.  ✶ Baking Soda ➠ NaHCO₃
  3.  ✶ wash soda ➠ Na₂CO₃ · 10H₂O
  4.  ✶ caustic soda ➠ NaOH
  5.  ✶ Suhaga ➠ Na₂B₄O₇ · 10H₂O
  6.  ✶ alum ➠ K₂SO₄ · Al₂ (SO₄) ₃ · 24H₂O
  7.  ✶ red medicine ➠ KMnO₄
  8.  ✶ caustic potash ➠ KOH
  9.  ✶ Pottasium nitrate ➠ KNO₃
  10.  ✶ bleaching powder ➠ Ca (OCl) · Cl
  11.  ✶ lime water ➠ Ca (OH) ₂
  12.  ✶ gypsum ➠ CaSO₄ · 2H₂O
  13.  ✶ plaster of paris
  14.  ➠ CaSO₄ · ½H₂O
  15.  ✶ chalk ➠ CaCO₃
  16.  ✶ limestone ➠ CaCO₃
  17.  ✶ calcium carbonate ➠ CaCO₃
  18.  ✶ saliva ➠ NH₄Cl
  19.  ✶ Laughing Gas ➠ N₂O
  20.  ✶ Lithrage ➠ PbO
  21.  ✶ Galena ➠ PbS
  22.  ✶ red vermilion ➠ Pb₃O₄
  23.  ✶ white lead ➠ 2PbCO₃ · Pb (OH) ₂
  24.  ✶ salt acid ➠ HCl
  25.  ✶ Nitric acid ➠ HNO₃
  26.  ✶Amiraj ➠HNO₃ + HCl (1: 3)
  27.  ✶ dry ice ➠ CO₂
  28.  ✶ green cassia ➠ FeSO₄ · 7H₂O
  29.  ✶ horn silver ➠ AgCl
  30.  ✶ heavy water ➠ D₂O
  31.  ✶ Producer Gas ➠ CO + N₂
  32.  ✶ Marsh Gas ➠ CH₄
  33.  ✶ vinegar ➠ CH₃COOH
  34.  ✶ gamaxine ➠ C₆H₆Cl₆
  35.  ✶ blue case ➠ CuSO₄ · 5H₂O
  36.  ✶ Alcohol ➠ C₂H₅OH
  37.   #  Aldehyde ➠ C₆H₁₀O₅
  38.  ✶ grape juice ➠ C₆H₁₂O₆
  39.  ✶ Chinese ➠ C₁₂H₂₂O₁₁
  40.  ✶ urea ➠ NH₂CONH₂
  41.  ✶ benzene ➠ C2H6₆

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