beaker
blue
bottle
chemical
chemistry
chromophore
clinical
compound
copper
dangerous
development
discovery
education
equipment
experiment
factory
glass
glassware
hazard
hazardous
industrial
industry
lab
laboratory
liquid
manufacturing
material
methylene
object
product
reaction
research
risk
scale
science
scientific
scientist
solution
solvent
substance
sulfate
technology
test
test tube
thionine
tube
warning
water
white