ash

base

bowl

caustic

chemical

chemistry

chloride

cleaning

coal

compound

corrosive

danger

detergent

dry

erode

flake

glass

handicraft

handmade

hydrated

hydroxide

industrial

ingredient

inorganic

laboratory

lye

making

manufacturing

material

naoh

natural

nature

peel

potassium

powder

powdered

reaction

resistant

scale

soap

soda

sodium

solid

substance

surface

use

wash

white