Description
The “Manufacture of Bleaching Powder & Soap” (55x90 cm) educational chart presents clear, stepwise diagrams and explanations illustrating both the industrial synthesis processes for bleaching powder and soap, designed for chemistry classrooms and industrial training.
Key Features and Processes Shown
Printed in multicolor on sturdy, laminated 55x90 cm paper, this chart clearly labels and sequences every major step for both bleaching powder and soap production.
The bleaching powder section typically depicts the Hasenclever or Bachmann’s plant, showing:
Introduction of slaked lime (calcium hydroxide) and chlorine gas into a tower with shelves or cylinders.
Contact and reaction to form bleaching powder (calcium oxychloride) according to:
Ca(OH)
2
+
Cl
2
→
CaOCl
2
+
H
2
O
Ca(OH)
2
+Cl
2
→CaOCl
2
+H
2
O
Collection of bleaching powder at the tower's base and removal of waste gases from the top.
The soap manufacturing part usually illustrates the saponification process:
Fats/oils react with sodium hydroxide (lye) forming soap and glycerol.
Depicts mixing columns or reactors, separation of soap and lye, and washing/finishing steps:
Fat/Oil
+
NaOH
→
Soap
+
Glycerol
Fat/Oil+NaOH→Soap+Glycerol
Describes stages such as lye separation, washing columns, and subsequent purification.
Educational Utility
Each stage is visually coded for easy comprehension, with concise text describing reactants, products, industrial equipment, and by-products.
Useful for teaching fundamental concepts in industrial chemistry, chemical engineering, and everyday applications of chemical reactions.
Highlights safety, utility, and societal impact of bleaching powder (for water treatment, bleaching fabrics) and soap (for cleaning, hygiene).
This poster is ideal for chemistry labs, science classrooms, or technical training centers, making industrial chemical processes accessible and engaging to learners.