Author
Philip Schidrowitz
Bio: Philip Schidrowitz is an academic researcher. The author has contributed to research in topics: Mineral acid & Natural rubber. The author has an hindex of 3, co-authored 11 publications receiving 22 citations.
Topics: Mineral acid, Natural rubber, Distillation, Pot still, Acetic acid
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22 citations
TL;DR: Gemini surfactants have two hydrophilic head groups and three hydrophobic head groups in a molecule separated by a spacer group as mentioned in this paper, and they have two different types of head groups.
Abstract: Gemini surfactants are most exciting new types of surfactants. They have two hydrophilic head groups and two hydrophobic groups in a molecule separated by a spacer group. Nowadays differen...
21 citations
11 citations
TL;DR: In the well-known formol titration method of Sorensen (22), neutralised formaldehyde is added to the solution of the amino acid and standard alkali run in until the production of a red colour with penolphthalein this article.
Abstract: In the well-known formol titration method of Sorensen (22), neutralised formaldehyde is added to the solution of the amino-acid (or other compound containing —NH2) and standard alkali run in until the production of a red colour with penolphthalein. An explanation of this method that has often been advanced in text-books and elsewhere is that the original amino-acid is neutral because the basic—NH2 neutralises the acidic —CO2H, and that with the addition of formalde-hyde the basic character of the —NH2 is destroyed, with the result that the acidic —CO2H is free to be titrated.
7 citations
3 citations