Malachite Green 25gm
Original price was: KSh1,500.00.KSh1,200.00Current price is: KSh1,200.00.
Malachite green is a synthetic dye primarily known for its vivid green color. Chemically, it belongs to the class of triarylmethane dyes. It’s often used in microscopy and histology to stain tissues, where it binds to proteins and nucleic acids, aiding in the visualization of cellular structures under the microscope. In microbiology, it can be used as an indicator in growth media to distinguish between organisms based on their ability to metabolize certain substrates. However, it’s important to note that malachite green is also known to be potentially toxic and should be handled with care in laboratory settings.
Uses of Malachite Green
Histology and Microscopy:
It is used as a stain to highlight specific structures in biological samples, such as tissues and cells. It binds to proteins and nucleic acids, aiding in the visualization under a microscope.
Microbiological Media:
Malachite green can be used as a pH indicator in microbiological media. It changes color based on pH, which helps in differentiating between different types of microorganisms or in detecting the presence of specific metabolic activities.
Aquaculture:
In aquaculture, malachite green has been historically used to control fungal infections in fish eggs. However, its use has become controversial due to concerns about its environmental and health impacts.
Chemical Reagent:
It can also be used as a reagent in certain chemical reactions, particularly those involving oxidation-reduction processes or in the synthesis of other compounds.
Industrial Applications:
Beyond the laboratory, malachite green is used in various industrial applications, such as dyeing textiles and coloring materials.
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Properties
- Color: Red to purplish-red.
- Solubility: Soluble in water and ethanol.
- Staining Characteristics: Stains chromatin and cytoplasmic components, providing contrast for better visualization under a microscope.
Preparation
- Ingredients:
- Carmine dye: A natural red dye extracted from the cochineal insect.
- Acetic acid: A colorless liquid organic compound with a pungent smell.
- Procedure:
- Dissolve a specific amount of carmine powder in hot distilled water.
- Add glacial acetic acid to the solution.
- Filter the mixture to remove any undissolved particles.
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