

< Classification of Indicators>
Chemical indicators, the "chameleons" that play an important role in chemical experiments, actually have their own family tree. They are categorized into several groups according to their uses and properties.
I. Acid-Base Indicator
This is a large group of chemical indicators, mainly used to indicate the acidity or alkalinity of a solution. Phenolphthalein and methyl orange are familiar acid-base indicators. They show different colors in acidic or alkaline environments, thus helping us to determine the pH value of a solution.
II. Redox Indicator
These indicators are mainly used in redox reactions, such as methylene blue and sodium diphenylamine sulfonate. They are able to keenly capture the electron transfer in redox reactions and tell us whether the reaction is complete or not by the change in color.
III. Adsorption Indicator
Adsorption indicators, such as bromophenol blue and eosin, are mainly used in titration analysis to indicate the end point of the titration by the color change of the adsorption on the surface of the titrant or the titrated substance.
IV. Fluorescent Indicator
These indicators, such as eosin, α-naphthylamine, β-naphthylamine, etc., are capable of emitting fluorescence under certain conditions, thus helping us to observe and judge the progress of chemical reactions more accurately.
V. Metal Ion Indicator
These indicators, such as Chrome Black T Calcium indicator, are mainly used to detect the presence and concentration of metal ions. They are able to undergo specific complexation reactions with metal ions and tell us the type and concentration of the metal ions by a change in color.
< Aladdin Indicators >
I. A wide range of products in stock
Aladdin is committed to providing a wide range of products, and is able to provide more than 300 types of indicators to meet the needs of different customers. At the same time, we also have a large number of stock reserves, the stock rate of up to 80%, to ensure that you can always buy your favorite reagents.
II. Strict quality control and stable quality
Aladdin insists on strict quality control standards to ensure stable product quality. From the procurement of raw materials to the production process, to the final inspection of the finished product, each step has a perfect SOP, you can download the corresponding COA report according to the batch number of the product at any time on the official website of Aladdin.
III. Technical Support
Aladdin technical team is composed of highly educated talents with profound professional knowledge and rich practical experience. They continue to accumulate and provide customers with professional technical support and solutions to ensure that our products are always ahead of the market in terms of technology and performance. Choosing Aladdin is choosing the guarantee of professionalism and innovation!
Aladdin Product Item No. | Product Name | Specifications & Purity | Packaging Specification |
P108714 | Phenolphthalein | Indicator | 25g/100g/500g |
M102719 | Methylene Blue | Indicator | 25g/100g/500g |
B109645 | Bromophenol blue | Indicator | 10g/25g/50g/250g |
E100233 | Eosin B | Indicator | 25g |
E280998 | Eriochrome Black T Indicator | 0.2% | 100ml |