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Rubber compounding ingredients — Organic vulcanizing agents — Determination of organic peroxide content
a) titration method A for group a: Peroxyketals:
1,1-Di(tert-butylperoxy)cyclohexane (DTBPC; CAS Registry Number®:3006-86-8)
1,1-Di(tert-butylperoxy)-2-methylcyclohexane (DBPMC; CAS RN 147217‑40‑1);
1,1-Di(tert-butylperoxy)-3,3,5-trimethylcylcohexane (DBPTC; CAS RN 6731‑36‑8);
2,2-Di(tert-butylperoxy)butane (DBPB; CAS RN 2167‑23‑9);
Butyl −4,4-di(tert-butylperoxy)valerate (BPV; CAS RN 995‑33‑5);
b) titration method B for group b: Diacyl peroxides:
Dibenzoyl peroxide (CAS RN 94‑36‑0);
Di(2,4-dichlorobenzoyl) peroxide (CAS RN 133‑14‑2);
Di(4-methylbenzoyl) peroxide (CAS RN 895‑85‑2);
c) titration method C for group c: Diaralkyl and alkyl-aralkyl peroxides:
Di(tert-butylperoxyisopropyl)benzene (CAS RN 2212‑81‑9);
Dicumyl peroxide (CAS RN 80‑43‑3);
tert-Butyl cumyl peroxide (CAS RN 3457‑61‑2);
d) gas-chromatography for dialkyl peroxides, using a capillary or packed column.
2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane (CAS RN 78‑63‑7)
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