燃やす
acid
bottle
chemical
chemistry
compound
corrosion
corrosive
danger
dangerous
destroy
equipment
factory
glass
glasses
glove
hazard
hazardous
hcl
hydrochloric
hydrochloric acid
industrial
industry
lab
laboratory
liquid
manufacturing
mask
material
object
ph
poison
product
protect
reaction
research
risk
safety
scale
science
solution
substance
test
warning
water
white