Lovibond Single Method 56I700350 - Quaternary Ammonium Compounds User manual

Lovibond
Brand
Lovibond
Model
Single Method 56I700350 - Quaternary Ammonium Compounds
Type
User manual
Quaternary Ammonium Compounds / 56I700350
ENMethod Reference Book1.02
Quaternary Ammonium Compounds 56I700350
60 - 2000 mg/L CTAB
Material
Reagents Packaging Unit Part Number
QAC Indicator QA1 65 mL 56L018265
QAC Buffer QA2 65 mL 56L018365
QAC Titrant QA3 65 mL 56L718465
The following accessories are required.
Accessories Packaging Unit Part Number
Syringe, plastic, 20 mL 1 pc. 56A006501
Titration jar with cap, plastic, 60 mL 1 pc. 56A006701
Application List
• Cooling Water
Notes
1. Colours may vary depending on sample and test conditions.
2. CTAB = Cetyl Trimethyl Bromide
Quaternary Ammonium Compounds / 56I700350
ENMethod Reference Book1.0 3
Quaternary Ammonium Compounds / 56I700350
ENMethod Reference Book1.04
20 mL 10
Fill the jar with 20 mL of
the sample.
Add 10 drops QAC Indi-
cator QA1.
Swirl to mix.
The sample will turn blue
or yellow (the pH value of
the sample is decisive for
the colour).
Add x drops of QAC Buffer
QA2 to give a red/purple
colour.
Attention! Record the
number of drops that will be
added.
Note: Make sure to swirl the
jar after adding each drop!
Add QAC Titrant QA3
drop by drop to the sample
until colouration turns
from red/purple to
orange/yellow .
Calculate test result: QAC (as CTAB) mg/L = Number of drops x 60
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Lovibond Single Method 56I700350 - Quaternary Ammonium Compounds User manual

Lovibond
Brand
Lovibond
Model
Single Method 56I700350 - Quaternary Ammonium Compounds
Type
User manual
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