Standard Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/Titration

Importancia y uso:

5.1 This test method is designed to assess the purity of 2-mercaptobenzothiazole sulfenamide accelerators. These products are used in combination with sulfur for the vulcanization of rubber.

5.2 The test method is suitable for assessing product specifications in that the property it measures is related to product performance. Since it is the primary property for comparison of product quality at different production facilities, good interlaboratory accuracy and precision is required.

5.3 Based on past experience, two significant sources of error in this test method are: (1) incomplete reduction and (2) titration end point assessment. Problems in these areas can be avoided by closely following the procedure.

Subcomité:

D11.11

Referida por:

D4818-21, D5297-95R23, D5900-23

Volúmen:

09.01

Número ICS:

71.080.30 (Organic nitrogen compounds)

Palabras clave:

accelerator; assay; mercaptobenzothiazole; N-cyclohexyl-2-benzothiazole sulfenamide (CBS); N-dicyclohexyl2-benzothiazyl sulfenamide (DCBS); N-diisopropyl-2benzothiazyl sulfenamide (DIBS); N-tert-butyl-benzothiazole sulfenamide (TBBS); sulfenamide; 2-(morpholinothio) benzothiazole (MBS); 4 morpholinyl-2-benzothiazyl disulfide (MBSS);