Introduction
Applied chemistry is the branch of chemistry concerned with using the theories and principles of pure chemistry for practical, day to day purposes. While pure chemistry builds the underlying knowledge (structure, bonding, reaction mechanisms), applied chemistry turns that knowledge into processes and products: fuels, fertilisers, plastics, drugs, cement, paper, dyes, and more. It overlaps with chemical engineering, materials science, and environmental chemistry, and touches areas such as pollution control, energy production, and healthcare technology.
Chemical Industry and Its Importance
A chemical industry converts cheap, abundant raw materials (minerals, petroleum, air, water, agricultural residues) into more valuable, usable products through chemical reactions carried out on a large scale. Its importance can be seen across many sectors of the economy:
- Agriculture and food: fertilisers, pesticides, food preservatives and packaging.
- Health and hygiene: drugs, antiseptics, soaps and detergents.
- Energy: fuels, batteries, and materials for renewable energy devices.
- Construction: cement, paints, coatings, glass.
- Transport: petrochemicals, polymers and alloys used in automobiles.
- Environment: chemicals and technologies for pollution control and waste treatment.
Because a single chemical plant supplies raw materials or components to many other industries, the health of the chemical industry has a multiplier effect on a country's overall industrial development.
Stages in Producing a New Product
Bringing a new chemical product to market is not a single step; it usually passes through seven stages:
- Research: ideas for a new product are gathered from customers, competitors, chemists, engineers and marketing staff.
- Screening: the many raw ideas are filtered down to the few that look technically and commercially feasible.
- Concept development and testing: the shortlisted ideas are developed into a clear product concept and tested with a sample of target customers for their reaction.
- Business analysis: the likely demand, cost of production, pricing, and profitability of the concept are analysed in detail.
- Product development: a working version (prototype) of the product is actually manufactured in the laboratory or pilot plant and its technical performance is checked.
- Market testing: the product, with its intended branding and packaging, is launched in a small, representative test market before a full launch.
- Commercialisation: on the strength of a successful test, the product is manufactured and marketed on a full, national or international scale.