Armstrong's acid

Armstrong's acid

Chembox new
Name = Armstrong's acid
ImageFile = Naphthdisulf.png IUPACName = Naphthalene-1,5-disulfonic acid
OtherNames = Armstrong's acid
Section1 = Chembox Identifiers
CASOther = 81-04-9
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RTECS =
Section2 = Chembox Properties
Formula = C10H8S2O6
MolarMass = 288.299 g/mol
MeltingPt =
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pKa =
Section3 = Chembox Structure
MolShape =
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Section7 = Chembox Hazards
ExternalMSDS =
MainHazards = corrosive
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Section8 = Chembox Related
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Armstrong's acid (naphthalene-1,5-disulfonic acid) is a strong acid which is related to toluenesulfonic acid and is used in chemical synthesis. It is sometimes used as a divalent counterion for forming salts of basic drug compounds, as an alternative to the related mesylate or tosylate salts. When used in this way such a salt is called a naphthalenedisulfonate salt, as seen with the most common salt form of the stimulant drug CFT.


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