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racemic    
a. 外消旋的

外消旋的

Racemic \Ra*ce"mic\ (r[.a]*s[=e]"m[i^]k), a. [Cf. F.
rac['e]mique. See {Raceme}.] (Chem.)
Pertaining to, or designating, an acid found in many kinds of
grapes. It is also obtained from tartaric acid, with which it
is isomeric, and from sugar, gum, etc., by oxidation. It is a
sour white crystalline substance, consisting of a combination
of dextrorotatory and levorotatory tartaric acids. --Gregory.
[1913 Webster]



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  • Racemic mixture - Wikipedia
    In chemistry, a racemic mixture or racemate ( reɪˈsiːmeɪt, rə -, ˈræsɪmeɪt [1]) is a mixture that has equal amounts (50:50) of left- and right-handed enantiomers of a chiral molecule or salt Racemic mixtures are rare in nature, but many compounds are produced industrially as racemates
  • Whats a Racemic Mixture? – Master Organic Chemistry
    A racemic mixture is an equimolar mixture of two enantiomers that is optically inactive In this article we break down what a racemic mixture is, and give plenty of examples
  • 5. 8: Racemic Mixtures and the Resolution of Enantiomers
    A racemic mixture is a 50:50 mixture of two enantiomers Because they are mirror images, each enantiomer rotates plane-polarized light in an equal but opposite direction and is optically inactive
  • Racemic mixture | Definition, Example, Facts | Britannica
    Racemic mixture, a mixture of equal quantities of two enantiomers, or substances that have dissymmetric molecular structures that are mirror images of one another The name is derived from racemic acid, the first such substance to be carefully studied
  • RACEMIC Definition Meaning - Merriam-Webster
    The meaning of RACEMIC is of, relating to, or constituting a compound or mixture that is composed of equal amounts of dextrorotatory and levorotatory forms of the same compound and is not optically active
  • Racemic Mixtures - Chemistry Steps
    A mixture containing equal amounts of two enantiomers is called a racemic mixture or a racemate Racemic mixtures are optically inactive and therefore they are achiral
  • What Does Racemic Mean? A Simple Explanation for Students
    A **racemic** mixture is like a **50-50 blend** of two mirror-image molecules—called **enantiomers**—that rotate light in opposite directions Think of it as a pair of gloves: one fits your left hand, the other your right A racemic mixture contains **equal amounts of both** (like a box with 50 left-handed and 50 right-handed gloves)
  • 5. 8 Racemic Mixtures and the Resolution of Enantiomers - OpenStax
    Such a mixture is called a racemate (rass -uh-mate), or racemic mixture, and is denoted by either the symbol (±) or the prefix d,l to indicate an equal mixture of dextrorotatory and levorotatory forms
  • What Is a Racemic Mixture? Definition and Examples
    A racemic mixture, also referred to as a racemate, is defined as a chemical sample containing precisely equal amounts of a pair of enantiomers, resulting in a 50:50 ratio
  • Racemic Mixtures - ChemTalk
    A racemic mixture or racemate is a mixture that contains an equal amount of two enantiomers As light passes through the mixture, the enantiomers rotate the light equally but in opposite directions; this causes the mixture to be optically inactive





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