In the chemical industry, color is much more than just an optical feature – it is a decisive quality factor.<\/strong> With powders, catalysts and additives<\/strong> in particular, even a minimal color deviation can indicate differences in purity, composition or process control<\/strong>. Objective and reproducible color measurement<\/strong> therefore provides important information for quality assurance, product development and process control<\/strong>. <\/p>\n Powdered chemicals are found in numerous applications – from pigments, fertilizers, binders and fillers to additives for plastics or coatings.<\/strong> Their color often provides information about:<\/p>\n In quality control in particular, color measurement is a fast method that reliably provides objective data – regardless of subjective perception or lighting conditions.<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/www.hunterlab.eu\/wp-content\/uploads\/2025\/10\/HunterLab-Image-Color-Measurement-of-Chemical-Powders.png” alt=”Color measurement of chemical powders-Collage-HunterLab” title_text=”HunterLab-Image-Color-Measurement-of-Chemical-Powders” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][et_pb_divider _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_divider][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” border_color_all=”#2A4175″ global_colors_info=”{}”]<\/p>\n The new ColorFlex L2<\/strong> spectrophotometer<\/a> is ideal for the color measurement of chemical powders, granulates and additives<\/strong>. With its 45°\/0° measuring geometry<\/a><\/strong>, it measures exactly how the human eye<\/a> perceives color – perfect for products that were previously evaluated visually. <\/p>\n Advantages in practice:<\/strong> This allows colour<\/a> deviations between production batches to be detected, documented, and corrected before they affect the final product.<\/p>\n [\/et_pb_text][et_pb_button button_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjMzMjA5MCJ9fQ==@” url_new_window=”on” button_text=”Learn more about the ColorFlex L2 Spectrophotometer<\/a> here!” _builder_version=”4.27.4″ _dynamic_attributes=”button_url” _module_preset=”default” global_colors_info=”{}”][\/et_pb_button][et_pb_divider _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_divider][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” border_width_all=”1px” border_color_all=”RGBA(255,255,255,0)” global_colors_info=”{}”]<\/p>\n With its 0°\/45° measuring geometry<\/a><\/strong> and UV calibration<\/strong>, the Agera enables precise measurement even with materials that fluoresce under UV light<\/a>. The integrated camera supports optimum sample positioning. <\/p>\n Typical applications:<\/strong><\/p>\n [\/et_pb_text][et_pb_button button_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjM3NjY5NCJ9fQ==@” url_new_window=”on” button_text=”Find out more about the Agera L2 here!” _builder_version=”4.27.5″ _dynamic_attributes=”button_url” _module_preset=”default” global_colors_info=”{}”][\/et_pb_button][et_pb_divider _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_divider][et_pb_heading title=”FAQ” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_heading][difl_faq faq_layout=”plain” enable_schema=”on” admin_label=”FAQ” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}” que_wrapper_bg_bgcolor__hover=”1px||||false|false” que_wrapper_bg_bgcolor__hover_enabled=”on|hover”][difl_faqitem question=”How are chemical powders measured?” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}” que_wrapper_bg_bgcolor__hover=”1px||||false|false” que_wrapper_bg_bgcolor__hover_enabled=”on|hover”]<\/p>\n Powders are usually measured in round glass cuvettes or plastic Petri dishes. The spectrophotometer<\/a> illuminates the sample<\/strong> at a defined angle and records the reflected light<\/a><\/strong>. This produces objective color values<\/strong> in the CIE L*a*b* color space or as a color index<\/strong> (e.g. WI, YI, 457 brightness<\/a>, Ganz\/Griesser, etc.). <\/p>\n [\/difl_faqitem][difl_faqitem question=”What influences the measurement results?” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}” que_wrapper_bg_bgcolor__hover=”1px||||false|false” que_wrapper_bg_bgcolor__hover_enabled=”on|hover”]<\/p>\n Particle size, density and scattering properties can easily change the measured color. Standardized sample preparation<\/a><\/strong> and a uniform surface are therefore important. <\/p>\n [\/difl_faqitem][difl_faqitem question=”Can fluorescent or UV-active powders be measured?” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}” que_wrapper_bg_bgcolor__hover=”1px||||false|false” que_wrapper_bg_bgcolor__hover_enabled=”on|hover”]<\/p>\n Yes – Instruments like the HunterLab Agera<\/strong> <\/a> can be used to identify optically brightened<\/strong> samples. It has an illumination range of 360-700 nm and a spectral range of 400-700 nm. For measurements of optically brightened samples, the device has a software-controlled UV option. In addition to a complete UV exclusion, the UV component can also be calibrated. <\/p>\n [\/difl_faqitem][difl_faqitem question=”Which software is suitable for evaluating chemical powders?” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}” que_wrapper_bg_bgcolor__hover=”1px||||false|false” que_wrapper_bg_bgcolor__hover_enabled=”on|hover”]<\/p>\n The integrated QC software Essentials 2.0<\/strong> contains all the necessary color data, trend plots and views<\/strong>. Both the ColorFlex L2<\/a> and the Agera<\/a> can be integrated into existing LIMS\/SPC systems for further processing of the data. <\/p>\n [\/difl_faqitem][\/difl_faq][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_3,1_3″ _builder_version=”4.27.4″ _module_preset=”default” locked=”off” global_colors_info=”{}”][et_pb_column type=”2_3″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n The color measurement of chemical powder substances is an indispensable part of modern quality control. HunterLab: Your partner for precise color measurement<\/strong><\/p>\n HunterLab is the world’s leading manufacturer of spectrophotometers for the color measurement of food and beverages. Our innovative solutions have been ensuring outstanding color quality in many industries for over 70 years. Renowned corporations and companies around the world rely on our devices and customer-oriented service. With 14 representatives throughout Europe and a dedicated team in the European HunterLab office, we support users with all colorimetry issues. <\/p>\n![\"color-measurement-of-white-powder-HunterLab-Europe\"](\"https:\/\/hunterlab.de\/wp-content\/uploads\/2024\/04\/Farbmessung-von-weissem-Pulver-HunterLab-Europe-1920w.jpg\")
<\/h3>\n <\/h3>\n
Why color is so crucial in chemical powders<\/strong><\/h3>\n
\n
Purity and particle morphology<\/strong><\/h5>\n<\/li>\n
Reaction degree and temperature control <\/strong>during synthesis<\/h5>\n<\/li>\n
Stability or ageing<\/strong> due to storage or light exposure<\/h5>\n<\/li>\n
Homogeneity and batch consistency<\/strong><\/h5>\n<\/li>\n<\/ul>\n
ColorFlex L2 – The Simple Solution for Powder Measurements in Laboratory or Production<\/strong><\/h3>\n
![\"ColorFlex](\"https:\/\/hunterlab.de\/wp-content\/uploads\/2025\/10\/CFL2-Measurement-white-Granules-DSC00661-scaled.jpg\" "\\"ColorFlex")
<\/p>\n
✅ Easy sample handling – powders can be measured directly in dishes or Petri dishes
✅ Precise and repeatable results
✅ Fast device calibration and intuitive software (Essentials 2.0)
✅ Robust and compact – ideal for laboratory and production environments<\/p>\nAgera L2 – for UV-active substances and whiteness measurements<\/strong><\/h3>\n
![\"Agera-with-powder-white\"](\"https:\/\/hunterlab.de\/wp-content\/uploads\/2024\/04\/Agera-mit-Pulver-weiss-freisteller-DSCF9014-2880w-3.png\")
If powders contain optically active or fluorescent components<\/strong>, or if the degree of whiteness <\/strong>(e.g. for catalysts, fillers or titanium dioxide-based additives) needs to be determined, the Agera spectrophotometer<\/a><\/strong> is the right choice.<\/p>\n\n
Conclusion<\/h2>\n
\nWith the ColorFlex L2<\/strong> for routine tests<\/a> and the Agera L2<\/strong> for demanding applications<\/a> with UV activity or whiteness requirements, the laboratory and production have two perfectly coordinated solutions.
\nBoth systems stand for precision<\/a>, reliability and user-friendliness – Made by HunterLab.<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][difl_dual_button btn_left_background_bgcolor=”#DC4A50″ use_left_button_icon=”off” btn_right_background_bgcolor=”#FFFFFF” use_right_button_icon=”off” left_button=”Find out more about the color measurement of chemical solids here!” left_button_url=”@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjI4NDQ5NiJ9fQ==@” left_button_wrapper_margin=”|12px|||false|false” right_button_wrapper_margin=”|||12px|false|false” left_button_padding=”16px|24px|16px|24px|true|true” left_button_padding_tablet=”16px|24px|16px|24px|true|true” left_button_padding_phone=”16px|16px|16px|16px|true|true” left_button_padding_last_edited=”on|phone” right_button_padding=”16px|24px|16px|24px|true|true” right_button_padding_tablet=”16px|24px|16px|24px|true|true” right_button_padding_phone=”16px|16px|16px|16px|true|true” right_button_padding_last_edited=”on|phone” alignment=”left” alignment_tablet=”center” alignment_phone=”center” alignment_last_edited=”on|tablet” _builder_version=”4.27.4″ _dynamic_attributes=”left_button_url” _module_preset=”be95d251-2d55-4926-b8b4-f039f8b01275″ left_button_font=”|700|||||||” left_button_text_color=”#FFFFFF” left_button_font_size=”16px” left_button_line_height=”22px” right_button_font=”|700|||||||” right_button_text_color=”#428BC5″ right_button_font_size=”16px” right_button_line_height=”22px” custom_margin=”20px||||false|false” left_button_text_align_tablet=”” left_button_text_align_phone=”center” left_button_text_align_last_edited=”on|phone” left_button_font_size_tablet=”16px” left_button_font_size_phone=”14px” left_button_font_size_last_edited=”on|phone” left_button_line_height_tablet=”22px” left_button_line_height_phone=”20px” left_button_line_height_last_edited=”on|phone” right_button_font_size_tablet=”16px” right_button_font_size_phone=”14px” right_button_font_size_last_edited=”on|phone” right_button_line_height_tablet=”22px” right_button_line_height_phone=”20px” right_button_line_height_last_edited=”on|phone” border_radii_left_button=”on|4px|4px|4px|4px” border_width_all_left_button=”2px” border_color_all_left_button=”#DC4A50″ border_radii_right_button=”on|4px|4px|4px|4px” locked=”off” global_colors_info=”{}” btn_left_background_bgcolor__hover_enabled=”on|desktop” btn_left_background_bgcolor__hover=”#FFFFFF” left_button_text_color__hover_enabled=”on|hover” left_button_text_color__hover=”#dc4a50″ btn_right_background_bgcolor__hover_enabled=”on|desktop” btn_right_background_bgcolor__hover=”#E63D28″ right_button_text_color__hover_enabled=”on|hover” right_button_text_color__hover=”#FFFFFF”][\/difl_dual_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” background_color=”gcid-a028b2d6-5275-477b-b58d-aed16b382bbb” border_radii=”on|1px|1px|1px|1px” border_width_all=”1px” border_color_all=”gcid-a028b2d6-5275-477b-b58d-aed16b382bbb” global_colors_info=”{%22gcid-a028b2d6-5275-477b-b58d-aed16b382bbb%22:%91%22background_color%22,%22border_color_all%22%93}”]<\/p>\n