There are two types of coulometric reagents: the anolyte (generating solution),which is placed in the anode chamber of the electrolysis cell, and the catholyte (counter electrolyte), which is placed in the cathode chamber. There are also special anolyte for use with ketones, lower carboxylic acids and silicone oils. AQUAMICRON® can be used in coulometric moisture measurement systems sold by various companies, and it has a worldwide reputation for excellent performance.

Example (Coulometric Reagents)

Product name Use Specification Package
AQUAMICRON®
AXI *AXI [For frit or fritless type cell, equivalent to FLS]
*AXI, AX & AX01[For General-use]
Organic solvents, Inorganic chemicals, Oiles, Petroleum products, Various kind of gases, etc.
Moisture maximum
0.15 mgH2O/mL
500mL
AX
AX01 100mL
AS [For Oils]
Naphtha, Gasolone, Diesel oil, Electrical insulation oil, etc.
Moisture maximum
0.15 mgH2O/mL
500mL
AKX [For Ketones]
Ketones. Silicone oils. Low carboxylic acids, etc.
Moisture maximum
0.15 mgH2O/mL
500mL
CXU [Catholyte]
Both AX and AS and AKX available to combine with
Moisture maximum
0.6 mgH2O/mL
5mL
x10/case
FLS [For fritless type cell]
Organic solvents, Inorganic gases, etc.
Moisture maximum
0.15 mgH2O/mL
500mL

Use General samples
Characteristics Minimal environmental contamination Does not include carbon tetrachloride or chloroform.
Wide range of applications Suitable for petroleum products
Can be used with moisture vaporization method
(When using AQUAMICRON® AX or AXI in a moisture vaporization method, replenish the vaporized portion with methanol.)
High quality, high performance Excellent reputation for accurate moisture measurement and end-point stability
Approximately 800mg of moisture can be measured per 100mL of AQUAMICRON® AX or AXI, and approximately 150mg per 5mL of AQUAMICRON® CXU
Easy to use These products can be used in the existing coulometric moisture measurement system.

Use General samples
Characteristics Wide range of applications Especially suitable for oils, petroleum products
High quality, high performance Excellent reputation for accurate moisture measurement and end-point stability.
Approximately 800mg of moisture can be measured per 100mL of AQUAMICRON® AS, and approximately 150mg per 5mL of AQUAMICRON® CXU.
Easy to use These products can be used in the existing coulometric moisture measurement system.

Use Ketones, lower carboxylic acids, some aldehydes (aromatics)
Characteristics Minimal environmental contamination Does not include chloroform or methyl cellosolve
Wide range of applications Suitable for ketones, lower carboxylic acids and some aldehydes
High quality, high performance Accurate moisture measurement, good end-point stability
Approximately 300mg of moisture can be measured per 100ml of AQUAMICRON® AKX, and approximately 100mg per 5mL of AQUAMICRON® CXU (when used with AQUAMICRON® AKX).
Easy to use These products can be used in the existing coulometric moisture measurement system.

Use Suitable for alcohols, esters, benzene, toluene, inorganic gases, etc.
Characteristics Easy to use AQUAMICRON® AXI or FLS is a single-solution type reagent. It should be used in single-solution electrolytic cells without diaphragm, fritless type cell.
Can be used with moisture vaporizati on method(When using AQUAMICRON® AXI or FLS in a moisture vaporization method, replenish the vaporized portion with methanol.)
Easy to use Ceramic diaphragm is not used, therefore it is easy to maintain electrolytic cell in good condition.