Sodium Benzoate 500gm
Original price was: KSh445.00.KSh300.00Current price is: KSh300.00.
Sodium benzoate is a common food preservative that is the sodium salt of benzoic acid. It is a white, crystalline powder that is soluble in water and has a slightly sweet, astringent taste. Sodium benzoate is often added to processed foods, soft drinks, and other beverages to extend their shelf life and prevent the growth of harmful bacteria, yeast, and mold. It is generally considered safe for consumption in small amounts, but can cause allergic reactions in some people.
Uses of Sodium Benzoate
Preservative:
It is used to prevent microbial growth in various solutions and media, particularly those that are acidic.
Analytical Chemistry:
Sodium benzoate can be used as a standard substance in analytical chemistry for calibration purposes.
Buffer Solution:
It is sometimes used in buffer solutions to control pH levels, especially in biochemical experiments.
Chemical Reagent:
It can be used as a reagent in various chemical reactions and synthesis processes.
Quality Control:
Sodium benzoate is also used in quality control processes to ensure stability and preservation of samples and products.
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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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