63 free compound photos from Freerange

People in a Network Sharing Ideas - Social Connections

Businessman drawing a financial graph histogram

Crystals of potassium permanganate used in medicine and chemical reactions

Bottle of acetic acid and the molecular structure.

Chemical reaction with burner.

Four reagent bottles containing hydrochloric acid, ammonium hydroxide, water and acetic acid.

Compound Interest - A Rising Financial Curve on Blackboard

Comfrey is also known by the names knitbone, slippery root, bruisewort, and blackwort. Comfrey is a perennial herb native to Europe. The plant grows to be about 2-3½ feet tall with beautiful, bell-shaped flowers and large leaves. Comfrey normally blooms throughout the summer, with the first flowers opening in late April or early May. Flowers come in blue, pink, purple, or white. Comfrey is not safe for internal use. However, comfrey is often used in skin care preparation due to the compound Allantoin present in the plant.

Chemical bottle with a protective blue cap preventing leakage and spillage.

orange or red dragonfly perched on horsetail reed, close up macro view

Close up of dragonfly eyes and legs

Two reagent bottles containing hydrochloric acid, acetic acid and their molecular models.

Four reagent bottles containing hydrochloric acid, ammonium hydroxide, and acetic acid.

Comfrey is a perennial herb native to Europe. The plant grows to be about 2-3½ feet tall with beautiful, bell-shaped flowers and large leaves. Comfrey normally blooms throughout the summer, with the first flowers opening in late April or early May. Flowers come in blue, pink, purple, or white. Comfrey is not safe for internal use. However, comfrey is often used in skin care preparation due to the compound Allantoin present in the plant. Comfrey is also known by the names �knitbone,�� �slippery root,�� �bruisewort,�� and �blackwort.��

Taping the cover on a chemical storage bottle to prevent vapor leakage.

A bottle of benzene with its chemical structure.

pH solution in test tubes.

Chemistry titration with ion selective electrode.

Measured mass of iodine.

Beaker with solution on hot plate.

A reagent bottle containing toluene and its chemical structure.

View of flasks and glassware in chemistry lab

Micro scale chemical mixing

Robber fly family - asilidae - also called assassin flies. They feed mainly on other insects and they wait in ambush and catch their prey in flight.

Removing the protective cap from a chemical storage bottle.