Using solvents by bisma presentation

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Transcript of Using solvents by bisma presentation

USING SOLVENTS

PREPARED BY BISMA NOOR CLASS V BG.SCIENCE

FAZAIA DEGREE COLLEGE FAISAL KARACHI

EXAMPLES OF SOLUTIONS

WATER AS A UNIVERSAL SOLVENT

paints

SOLVENT OF PAINTS

1. Water2. White

spirit

GLUES

SOLVENT OF GLUES

INKS AND DRY CLEANING• Inks of ball points,fibre tip pens and other types contain dyes mixed with

solvents that evaporate very quickly.

INKS AND DRY CLEANING

• Many stains on clothes,carpets and furnishings donot dissolve in water so the people who specialize in cleaning these materials have to find out solvents which dissolve them.

METAL ALLOYS• MAKING AN ALLOY

• It is dissolving a solid in a molten solid.

PROBLEM OF STEELi. RUSTS

CHROMIUM

NICKEL TO THE MOLTEN STEEL

STAINLESS STEEL