Conducted training of lab technician at Tropical on the Standard Operating Procedure for Quality Control of Quaternary Based Products. Went over Electrode Preparation, Preparation of sodium dodecyl sulfate (SDS) Titrant, Burette Preparation, ample Preparation for CONCENTRATE and RTU.
Materials
2-Propanol (isopropyl alcohol)
Deionized or Distilled water
2’,7’-Dichlorofluorescein indicator 0.1% in 2-Propanol
Glacial acetic acid
0.1N Silver Nitrate (AgNO3) solution, standardized
0.1N Sodium Hydroxide (NaOH) solution, standardized (for Amine Hydrochloride determination)
Phenophthalein indicator, 1% in 2-Propanol (for Amine Hydrochloride determination)
2 burets, 1 for AgNO3 and 1 for NaOH
Procedure
Make a 1:1 solution of 2-Propanol and Deionized or Distilled water
Accurately weigh to 0.001g of sample into a 250 mL Ehrlenmeyer flask
Add 50mL of the 1:1 solution of 2-Propanol and Deionized or Distilled water
Add 6 drops of 0.1% 2’,7’-Dichlorofluorescein indicator
Add 1-2 drops of Glacial acetic acid, or amount sufficient to remove the fluorescence
Titrate with 0.1N AgNO3 to the pink end-point
Procedure for Amine Hydrochloride (Amine HCl) determination
Accurately weigh to 0.001g of sample into a 250 mL Ehrlenmeyer flask
Add 50mL of Deionized or Distilled water
Add 6 drops of 1% Phenophthalein indicator
Titrate with 0.1N NaOH to the pink end-point