Self Accelerating Decomposition Temperature

Self Accelerating Decomposition Temperature

The Self Accelerating Decomposition Temperature (abbreviated SADT) is the lowest temperature at which an organic peroxide in a typical vessel or shipping package will undergo a self-accelerating decomposition.
This reaction can be violent, usually rupturing the vessel or container dispersing peroxide, liquid and gaseous decomposition products considerable distances. [] The heat generated might autoignite flammable vapors. There is generally a period of time after the SADT is reached and before the decomposition becomes violent. The length of time depends upon how much the SADT is exceeded, which can greatly accelerate the decomposition.As a rule of thumb, the SADT tends to decrease with increasing packaging size. [ [ Safety Report Assessment Guide: Chemical warehouses hazards ] ]

Although a number of organic peroxides can safely be stored at room temperature, most require some form of temperature control. For long storage periods, the organic peroxide is usually kept at a lower temperature than the maximum safe storage temperature as determined by the SADT. [ [ Storage Conditions for Organic Peroxides ] ]


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Structured Analysis and Design Technique — For the chemical reaction SADT, see Self Accelerating Decomposition Temperature Structured Analysis and Design Technique (SADT) is a software engineering technique for describing systems as a hierarchy of functions. Overview Structured Analysis… …   Wikipedia

  • Organic peroxide — The general structure of an organic peroxide. The general structure of an or …   Wikipedia

  • SADS — Schedule for Affective Disorders and Schizophrenia; self accelerating decomposition temperature; Sudden Adult Death Survey; sudden arrhythmic death syndrome * * * a disorder in which the mood of the affected person is said to change according to… …   Medical dictionary

  • SADS — • Schedule for Affective Disorders and Schizophrenia; • self accelerating decomposition temperature; • Sudden Adult Death Survey; • sudden arrhythmic death syndrome …   Dictionary of medical acronyms & abbreviations

  • Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

  • Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… …   Universalium

  • Carbon nanotube — Not to be confused with Carbon fiber. Part of a series of articles on Nanomaterials Fullerenes …   Wikipedia

  • environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

  • chemistry — /kem euh stree/, n., pl. chemistries. 1. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2). 2. chemical properties, reactions, phenomena, etc.: the chemistry of… …   Universalium

  • Compost — (  /ˈ …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”