Aulin-Erdtman, Gunhild’s team published research in Svensk Papperstidning in 45 | CAS: 596-01-0

Svensk Papperstidning published new progress about 596-01-0. 596-01-0 belongs to benzofurans, auxiliary class Benzofuran,Naphthalene,Alcohol,Ester, name is 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one, and the molecular formula is C28H18O4, SDS of cas: 596-01-0.

Aulin-Erdtman, Gunhild published the artcileValue of indicators for the determination of the acid number of tall oil, SDS of cas: 596-01-0, the publication is Svensk Papperstidning (1942), 333-5, database is CAplus.

The suitability of α-naphtholphthalein and Nile blue as indicators for the determination of the acid number of tall oil was investigated by means of potentiometric titrations on alc. solutions of model substances (oleic acid and purified resin acids) as well as of a distilled tall oil, in the presence of these indicators. Both indicators proved to be suitable but Nile blue could be used only if the solution contained less than 10% of water, because the color of this indicator in the range of the end point depends upon its water content. When α-naphtholphthalein is used, the end point should be taken at a dark-green color; Nile blue requires a shade between red and scarlet. Where greater accuracy is demanded, the potentiometric method should be used.

Svensk Papperstidning published new progress about 596-01-0. 596-01-0 belongs to benzofurans, auxiliary class Benzofuran,Naphthalene,Alcohol,Ester, name is 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one, and the molecular formula is C28H18O4, SDS of cas: 596-01-0.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem