Dilution Instructions for Quat (QAC) Solutions

Our test strips have been are calibrated for use with all the commonly used hyamine and steramine quat (quaternary ammonium chloride) solutions. Some commercially available strips have errors as high as 50%. Use this guide to test your strips.

Oasis 146

To prepare a 400ppm QAC solution, dilute 0.530ml of Oasis 146 into 100ml of water.

Active Ingredients	Conc.	Active Ingredients	Conc.
Alkyl dimethylbenzyl ammonium chloride	3.00%	Octyldecyl dimethyl ammonium chloride	2.25%
di-n-octyl dimethyl ammonium chloride	0.90%	di-n-decyl dimethyl ammonium chloride	1.35%

Hyamine 3500-80%

Prepare a stock solution by dissolving 1.25g in 100ml of water to produce a 10,000ppm solution. To prepare a 400ppm QAC solution, dilute 4ml of the stock solution into 100ml of water.

Active Ingredients
n-Alkyl (C₁₄=50%, C₁₂=40%, C₁₆=10%) dimethylbenzyl ammonium chloride-80%

Bardac 2280

Prepare a stock solution by dissolving 1.25g Bardac 2280 in 100ml of water to produce a 10,000ppm solution. To prepare a 400ppm QAC solution, dilute 4ml of the stock solution into 100ml of water.

Active Ingredients
Didecyldimethyl ammonium chloride-80%

Bardac 2250

Prepare a stock solution by dissolving 2g Bardac 2250 in 100ml of water to produce a 10,000ppm solution. To prepare a 400ppm QAC solution, dilute 4ml of the stock solution into 100ml of water.

Active Ingredients
Didecyldimethyl ammonium chloride-50%

Sysco QAC Tablets

To prepare a 400ppm QAC solution, place 1 tablet into 2.82L (1 US Gal.) of water.

Active Ingredients
Alkyl (C₁₄=95%, C₁₂=3%, C₁₆=2%) dimethylbenzyl ammonium chloride-50%

All Test Strips Organic Chemistry Molecular Model Sets, Permanent Neodymium Rare Earth Magnets, Magnifying Glasses, Test Strips, Lab Supplies, Tuning Forks