chemical formula


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chemical formula

[′kem·i·kəl ′fȯr·myə·lə]
(chemistry)
A notation utilizing chemical symbols and numbers to indicate the chemical composition of a pure substance; examples are CH4 for methane and HCl for hydrogen chloride.
References in periodicals archive ?
For monitoring these changes any keyword or combination of keywords may be used, such as a product or company name, a chemical formula, or a drug trade name.
The Mainichi report, ''Continuation of sarin research,'' said a female AUM member's notebook, seized by police, mentioned sarin's chemical formula.
Chemical Formula: [C(OCI).sub.2] Calcium Hypochlorite
Nomenclature of Structural and Compositional Characteristics of Ordered Microporous and Mesoporous Materials with Inorganic Hosts.: A system of terms applicable to ordered microporous and mesoporous materials is proposed, and rules for writing a standardized crystal chemical formula for such materials are presented.
AMERICAN scientists say they have discovered the chemical formula which controls our sleep.
In alphabetical order it lists many materials that are used in the flavouring business; in each case the chemical formula is set down, as is an outline of the method of production, brief physical properties, characteristics and uses.
6 In science, H2O is the chemical formula for what?
"French doctors have come up with a chemical formula that can reverse the aging process and make me look 10 years younger."
It works by analysing a tiny drop of drink as it comes into contact with a chemical formula made by the researchers.
Alongside the probable lipid structure important information such as the lipid id, lipid abbreviation, systematic name, lipid category, lipid mass, chemical formula and other database links is also made available.
The reference also includes a manufactures directory with available contact information; a function/application index allowing the user to locate chemicals based on functions such as accelerator, antistat, catalyst, deflocculant, or plasticizer as well as application key words such as adhesives, coatings, inks, paper, water treatment, and the like; CAS and EINECS/ELINCS number indexes; a chemical formula index; a glossary; and a bibliography.