activated charcoal

noun 0.877

charcoal

noun 0.728

black carbon

noun 0.718

biochar

noun 0.681

carbon black

noun 0.673

carbon

noun 0.662

animal charcoal

noun 0.651

carbon arc

noun 0.616

charbon

noun 0.615

carbon paper

noun 0.613

charcoal iron

noun 0.611

coal black

noun 0.605

carbon fiber

noun 0.604

adsorber

noun 0.592

carbon dioxide

noun 0.584

air filter

noun 0.578

carbon sequestration

noun 0.577

charcoal burner

noun 0.576

adsorptive

noun 0.575

acetylene black

noun 0.574

carbo

noun 0.572

carbon monoxide

noun 0.572

carbon nanotube

noun 0.570

carbon oxide

noun 0.567

anthracite

noun 0.565

graphite

noun 0.559

radiocarbon

noun 0.559

carbonic acid gas

noun 0.556

ion exchange resin

noun 0.556

inorganic carbon

noun 0.555

carbon credit

noun 0.549

humic acid

noun 0.548

carbon offset

noun 0.548

carbon dating

noun 0.547

antacid

noun 0.547

carbon nanofiber

noun 0.546

carbonic acid

noun 0.546

glassy carbon

noun 0.546

potassium carbonate

noun 0.545

carbon-14

noun 0.544

coal

noun 0.543

coking coal

noun 0.542

activated sludge

noun 0.541

air purifier

noun 0.539

adsorption

noun 0.539

calcium carbonate

noun 0.539

potassium bicarbonate

noun 0.537

sodium carbonate

noun 0.535

charcoal drawing

noun 0.534

baking soda

noun 0.533

carbon sink

noun 0.533

carbonate

noun 0.531

carbonado

noun 0.530

carbolic acid

noun 0.528

air cleaner

noun 0.527

sorbent

noun 0.527

carbonic anhydrase

noun 0.527

carbon tetrachloride

noun 0.527

adsorbate

noun 0.525

activated complex

noun 0.525

coal tar

noun 0.525

coal gas

noun 0.523

bicarbonate of soda

noun 0.522

soda ash

noun 0.521

tungsten carbide

noun 0.520

carbonated water

noun 0.519

potassium permanganate

noun 0.518

diatomaceous earth

noun 0.518

bicarbonate

noun 0.518

catalytic converter

noun 0.518

absorbent

noun 0.518

petroleum coke

noun 0.517

carbon burning

noun 0.516

superabsorbent

noun 0.515

carbon cycle

noun 0.514

carbide

noun 0.514

air pollutant

noun 0.513

potassium cyanide

noun 0.513

aluminium hydroxide

noun 0.513

catalase

noun 0.512

magnesium carbonate

noun 0.512

cyanide

noun 0.509

carbonation

noun 0.509

dry ice

noun 0.509

hydrocarbonate

noun 0.509

calcium carbide

noun 0.508

carborundum

noun 0.508

hydrogen carbonate

noun 0.507

sodium bicarbonate

noun 0.507

iron carbide

noun 0.507

carb

noun 0.507

hydroquinone

noun 0.507

coal plant

noun 0.506

carbonate of lime

noun 0.506

polyacrylamide

noun 0.505

photocatalyst

noun 0.505

ascorbic acid

noun 0.504

carbon fixation

noun 0.503

hydrocarbon

noun 0.503

carboxyhemoglobin

noun 0.502