Uses Of Boron And Aluminum And Their Compounds
Chapter Name : The P- Block Elements |
Sub Topic Code : 102_11_11_05_01 |
Topic Name : Uses Of Boron And Aluminum And Their Compounds |
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Sub Topic Name : Uses Of Boron And Aluminum And Their Compounds |
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Introduction
• Boron fibres are used in making bullet-proof vest and light composite material for aircraft. • The boron-10 (10B) isotope has high ability to absorb neutrons and, therefore, metal borides are used in nuclear industry as protective shields and control rods • The main industrial application of borax and boric acid is in the manufacture of heat resistant glasses (e.g., Pyrex), glass-wool and fibreglass. • Borax is also used as a flux for soldering metals, for heat, scratch and stain resistant glazed coating to earthenwares • Borax is used as a constituent of medicinal soaps. • An aqueous solution of orthoboric acid is generally used as a mild antiseptic. • Aluminium is a bright silvery-white metal, with high tensile strength. • It has a high electrical and thermal conductivity. • Aluminium is used extensively in industry and everyday life.
Pre-Requisites:
Elements, periodic table, Group
Activity:
• Group 13 has aluminium, boron which are important industrial elements.
Real Life Question:
What is boron used for?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| P block elements | Have the last electron in the outermost p orbital. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Boric acid | Used for killing insects. |
Real life uses :
• Diborane is used as a rubber vulcaniser and as a catalyst for hydrocarbon polymerisation.
Places to visit :
Chemistry lab, kitchen.
Practical examples around us
| Examples | Explainations |
|---|---|
| Boric acid | Used for killing insects. |
What you learn in Theory:
• Boron fibres are used in making bullet-proof vest and light composite material for aircraft. • The boron-10 (10B) isotope has high ability to absorb neutrons and, therefore, metal borides are used in nuclear industry as protective shields and control rods • The main industrial application of borax and boric acid is in the manufacture of heat resistant glasses (e.g., Pyrex), glass-wool and fibreglass. • Borax is also used as a flux for soldering metals, for heat, scratch and stain resistant glazed coating to earthenwares • Borax is used as a constituent of medicinal soaps. • An aqueous solution of orthoboric acid is generally used as a mild antiseptic. • Aluminium is a bright silvery-white metal, with high tensile strength. • It has a high electrical and thermal conductivity. • Aluminium is used extensively in industry and everyday life.
What you learn in Practice:
• Group 13 has aluminium, boron which are important industrial elements.