A beam of monochromatic light with constant intensity is perpendicular to the incident, passes through the medium, and is absorbed by a specific substance within the medium, with the remaining lightIf strongly detected, the intensity of light absorbed is proportional to the molar absorptivity of the medium at this wavelength and to the distance the light travels through the medium.Distance is proportional to the chromaticity of the substance.。

Typical Applications:

Quality Control (Dyeing, Desizing)

● Monitoring of product contamination by soluble impurities (such as)Iron in hydrochloric acid

Process Control (e.g., petroleum distillation process)

●Colorimetric testing of chemical products, e.g., Adipic AcidAcids, ammonia, alcohols, and hydroxamic esters

●Finished Oil Pipeline Interface Detection

Example of online monitoring point:

 Caprolactam purity

●Finished product of nitric acid and hydrochloric acid color度

Polystyrene finished product color grade

Ethylene Glycol Purity

Adipic Acid Decolorization Colorimetry

Azo coupling reaction chroma

Hydrocyanic Acid Color

Hydrogen Peroxide Working Solution Color Configuration

Agglomeration and Cracking Reaction Overheating Chromaticity Analysis

Prevent coloration from occurring due to exothermic polymerization reactions inside the reactor.

● Various liquid chromaticity control

Finished oil blending online chromaticity

●TDARaw and finished products' color tone

● Naptha color

● Gasoline, kerosene, diesel, lubricants, etc., color grade

●ASTM、APHA、Hazen、Pt-CoGardner, Luo Weipeng color

Styrene Color Index

Acrylic Color Index

● Quality Control of Finished Products (Color Addition, Color Removal)

Fluorinated refrigerant synthetic colorimetry

Heat Exchanger Leak Detection

Partial Performance