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Document ID (ISN)37950
CIS number 82-1055
ISSN - Serial title 0016-9765 - Giesserei
Year 1981
Convention or series no.
Author(s) Wörmann H., Müller F.J.
Title Determination of phenol in air during hardening of phenol-formaldehyde polymer binders for moulding sand
Original title Phenolbestimmung bei der Aushärtung von Giessereisandbindemitteln auf Phenolharzbasis [in German]
Bibliographic information 1981, Vol.68, No.8, p.223-224. Illus.
Abstract 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.
Descriptors (primary) shell moulding; phenols; binders; foundries; determination in air
Descriptors (secondary) moulding and coremaking; chemical analysis; description of technique
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s)
Browse category(ies) Foundries, metalcasting and forging operations
Phenols and phenolic compounds
Alcohols