| ID (ISN) del documento | 37950 |
| Número CIS |
82-1055 |
| ISSN - Título de la serie |
0016-9765 - Giesserei |
| Año |
1981 |
| Número de serie |
|
| Autor(es) |
Wörmann H., Müller F.J. |
| Título |
Determination of phenol in air during hardening of phenol-formaldehyde polymer binders for moulding sand |
| Título original |
Phenolbestimmung bei der Aushärtung von Giessereisandbindemitteln auf Phenolharzbasis [en alemán] |
| Información bibliográfica |
1981, Vol.68, No.8, p.223-224. Illus. |
| Resumen |
A laboratory method is described for comparative study of binders for moulding sand, to develop materials which present less health hazards and pollutants (a serious problem in foundries indequately equipped with exhaust ventilation). Principle of the method, equipment, chemicals used, pyrolysis, analysis, calibration. This standardised method gives reproducible results; uniform heating of the reaction tube is of great importance. The phenols given off are absorbed by caustic soda, coupled with p-nitroaniline and determined by colorimetry. |
| Descriptores (primarios) |
moldeado en caparazón; fenoles; aglomerantes; fundiciones; dosificación en el aire |
| Descriptores (secundarios) |
confección de moldes y núcleos; análisis químico; descripción del procedimiento |
| Tipo de documento |
D - Artículos periódicos |
| Tema(s) |
Sustancias tóxicas y peligrosas
|
| Broad subject area(s) |
|
| Navegación por categoria(s) |
Foundries, metalcasting and forging operations
Phenols and phenolic compounds
Alcohols
|
