| Document ID (ISN) | 38387 |
| CIS number |
82-1609 |
| ISSN - Serial title |
0144-557X - Analytical Proceedings |
| Year |
1981 |
| Convention or series no. |
|
| Author(s) |
Purnell C.J., Walker R.F. |
| Title |
Methods for the determination of atmospheric isocyanates |
| Bibliographic information |
Nov. 1981, p.472-478. 35 ref. |
| Abstract |
Reported methods for the determination of aliphatic and aromatic isocyanates are discussed. Spectrophotometric methods provide a total isocyanate figure, but for mixtures of the monomer and prepolymer a calibration graph using similar standard mixtures is required. These methods are simple and inexpensive. Chromatographic methods are necessary to resolve the concentrations of individual isocyanates present in a mixture. High-performance thin-layer chromatography and high-performance liquid chromatography are the preferred techniques. |
| Descriptors (primary) |
isocyanates; determination in air; plastics industry |
| Descriptors (secondary) |
literature survey; polyurethanes; high performance chromatography; methylenebis(4-cyclohexyl isocyanate); methylene diisocyanate; hexamethylene diisocyanate; spectrophotometry; 2,6-tolylene diisocyanate; 2,4-tolylene diisocyanate; sampling and analysis; description of technique; thin-layer chromatography; isophorone diisocyanate |
| Document type |
D - Periodical articles |
| Subject(s) |
Toxic and dangerous substances
|
| Broad subject area(s) |
|
| Browse category(ies) |
Chemical industry
Isocyanates
Cyano compounds
Plastics industry
|
