Spectrophotometric Determination of Nitrate by Use of 2,4-Xylenol.
Abstract
An improved method is proposed for the spectrophotometric determination of nitrate by use of 2,4-xylenol. The sample in 1.7 to 1 sulfuric acid (vol) is treated with 2,4-xylenol to produce 6-nitro-2,4-xylenol which is distilled into a water-isopropyl alcohol-ammonium hydroxide mixture. The intense yellow color due to the ammonium salt of 6-nitro-2,4-xylenol is measured at 455 nm. The distillation is performed in a few minutes by use of a Parnas-Wagner Kjeldahl semimicro distillation apparatus. The purpose of the isopropyl alcohol is to keep the excess 2,4-xylenol in solution and prevent a turbidity. Two procedures are described.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1976
- Accession Number
- ADA027953
Entities
People
- George Norwitz
- Herman Gordon
Organizations
- Frankford Arsenal