Leather Trades Chemistry: A Practical Manual on the Analysis of Materials and Finished Products

Contents: 1. Analysis of fuel. 2. The estimation of nitrogen. 3. The preparation of standard solutions. 4. Water. 5. Effluents. 6. Depilation. 7. Deliming. 8. Qualitative recognition of tannins. 9. Analysis of tanning materials. 10. Common vegetable tannins. 11. Mineral tannages. 12. Analysis of spent liquors and tans. 13. Oils. 14. Soap. 15. Varnishes. 16. Skins. 17. Analysis of leather. 18. Fleshings and scutch. 19. Glue. 20. Benzine. 21. Dyestuffs. 22. Disinfectants and Antiseptics.

Several valuable books on the leather industry already exist, but the lack of knowledge of analytical details of modem processes has been much felt. To supply this want, the Author has endeavoured in the following pages to set forth the results of an experience extending over many years.

The International Association of Leather Trades Chemists has so stimulated work on the methods employed in Tanyard analyses that to include all would extend the book indefinitely and the Author has therefore limited his subject to those problems which most often arise in actual practice. Dealing with the analysis of tanning materials the historical method has been employed, since this book is designed not only for students and industrialist but also for those who wish to fit themselves to undertake work in this branch of chemistry. To the latter a knowledge of processes which although no longer official have for many years withstood criticism is essential for a proper appreciation of the present international method.