Question 36
Metals and their CompoundsAluminium hydroxide is used in the dyeing industry as a
- A.salt
- B.dye
- C.mordant
- D.dispersant
Show the answer and explanation
Answer: C (mordant)
Explanation
Aluminium hydroxide is a mordant: it sticks to the fibre and binds the dye to it so the colour does not wash out.