Infra-red transmission and refraction data on standard lens and prism material

✍ Scribed by W.W. Coblentz

• Book ID: 104122525
• Publisher: Elsevier Science
• Year: 1920
• Tongue: English
• Weight: 67 KB
• Volume: 190
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(20)90077-7

✦ Synopsis

U. S. BUREAU 0~' STANDARDS NOTES.

[J. F. I. sulphur in oils, and finally a new procedure, are described.

The new method is based on the preliminary treatment of the oil with nitric acid saturated with bromine, followed by fusion with a mixture of sodium nitrate and carbonate.

Certain sources of error which are inherent in the method and the way in which they can be corrected for, are taken up.

Data obtained by the analysis of certain oils by this and other methods are given.

From these it appears that there is no loss of sulphur when oil is treated with nitric acid and bromine, and then ignited with the fusion mixture.

The method is recommended for laboratories which do not have a bomb calorimeter.