Inorganic chemistry deals with synthesis and behavior of inorganic and organometallic compounds. A variety of organic compounds and inorganic compounds comprise typical cosmetics. Autotrophic organisms are producers that generate organic compounds from inorganic material. Contaminants may include organic and inorganic substances. Organic arsenic is less harmful than inorganic arsenic. Cannabis smoke contains thousands of organic and inorganic chemical compounds. Various organometallic and inorganic reagents are effective. Sludge also contains more than trace amounts of organic and inorganic chemicals. Chemical gardens demonstrate the effect of osmosis in inorganic chemistry. Many published test methods are available for both organic and inorganic compounds. Volutin granules are cytoplasmic inclusions of complexed inorganic polyphosphate. Primary production is the production of organic matter from inorganic carbon sources. Some analytical techniques are capable of distinguishing organic from inorganic forms of the metal. Ethanol can also form esters with inorganic acids. Some analytical techniques are capable of distinguishing organic from inorganic forms of the element.