Purity may refer to:

Books

* ''Pureza'' (novel), a 1937 Brazilian novel by José Lins do Rego * ''Purity'' (novel), a 2015 novel by Jonathan Franzen ** ''Purity'' (TV series), a TV series based on the novel *''Purity'', a 2012 novel by Jackson Pearce *''Purity'', a 1998 novel by

Shaun Hutson Shaun Hutson (born 1958) is a British novelist in the horror and crime genres. Under his own name and various pen names, he has written at least thirty novels. Background A native of Letchworth Garden City in Hertfordshire, England, Hutson now ...

*''Purity'', a 2007 play by

Thomas Bradshaw (playwright) Thomas Bradshaw is an American playwright whose work has been extensively reviewed. He is the recipient of PEN/Laura Pels International Foundation for Theater Award as the Emerging American Playwright and of the Foundation for Contemporary Arts Gra ...

*'' Cleanness'', also known as ''Purity'', a 14th-century poem

Companies

Purity Dairies Purity Dairies, formerly known as Ezell's Dairy, is a Nashville, Tennessee, United States, based dairy company operated by the Ezell family. It provides products throughout Tennessee, Alabama, and Kentucky. The company is owned by and operates as a ...

, a dairy company in Nashville, Tennessee, United States *

Purity Factories Purity Factories Limited is a food processing company based in St. John's, Newfoundland and Labrador. Founded in 1924 by C. C. Pratt, A. E. Hickman, and W. R. Goobie, Purity is known for its cream crackers, Peppermint Nobs, Candy Kisses, and fla ...

, a food processing company in St. John's, Newfoundland and Labrador, Canada *

Purity Distilling Company The Purity Distilling Company was a chemical firm based in Boston, Massachusetts specializing in the production of ethanol through the distillation process. It was a subsidiary of United States Industrial Alcohol Company who purchased the compan ...

, an alcohol manufacturer involved in the Boston Molasses Disaster in the U.S. *

Purity FM Purity FM is a radio station broadcasting on 102.5 MHz FM in southeastern Nigeria, located at Mgbakwu, a village in Awka North Local Government Area, Awka, Anambra State. It is a local station owned by the Federal Radio Corporation of Nigeria. ...

, a Nigerian radio station *Purity, a former supermarket brand owned by Woolworths Supermarkets (Australia)

Film

* ''Purity'' (film), a 1916 motion picture *Purity by

Anat Zuria Anat Zuria ( he, ענת צוריה; born 1961) is an Israeli independent film director, creator of the films "Purity", "Sentenced to Marriage", "Black Bus," "The Lesson," "Conventional Sins," and "Reinvestigation." Filmography Between the years ...

* Black oil (''The X-Files'') (also known as Purity), a fictional alien virus in the TV series ''The X-Files''

Music

*"Purity", a 1999 song by Slipknot on their debut self-titled album * ''Purity'' (Hate Forest album) (2003)

Religion

*Purity, the absence of vice in human character, synonymous with chastity when used in reference to a person's sexual nature * Ritual purification, a feature of many religions * Purity in Buddhism, a spiritual purity of character or essence

Science

*Purity, the absence of

impurity In chemistry and materials science, impurities are chemical substances inside a confined amount of liquid, gas, or solid, which differ from the chemical composition of the material or compound. Firstly, a pure chemical should appear thermodynam ...

or contaminants in a substance; for example,

Chemical purity In chemistry, chemical purity is the measurement of the amount of impurities found in a sample. Several grades of purity are used by the scientific, pharmaceutical, and industrial communities. Some of the commonly used grades of purity include: ...

*Purity, the proportion of a named

pure substance A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., wi ...

in a sample (by weight, mass, volume, or count) * Fineness, several units of purity of precious metals * Nine (purity), an informal unit of purity *Purity, the

colorfulness Colorfulness, chroma and saturation are attributes of perceived color relating to chromatic intensity. As defined formally by the International Commission on Illumination (CIE) they respectively describe three different aspects of chromatic ...

of a light source *

Purity (quantum mechanics) In quantum mechanics, and especially quantum information theory, the purity of a normalized quantum state is a scalar defined as :\gamma \, \equiv \, \mbox(\rho^2) \, where \rho \, is the density matrix of the state. The purity defines a measure o ...