Chromium bụ ọla nwere ọtụtụ steeti valence, nke kachasị na ya bụ Cr (III) na Cr (VI).N'ime ha, nsí nke Cr (VI) karịrị 100 ugboro karịa nke Cr (III).Ọ na-egbu egbu nke ukwuu nye mmadụ, anụmanụ na ihe ndị dị n'ime mmiri.Edepụtara ya dị ka ọrịa carcinogen bụ isi site na International Agency for Research on Cancer (IARC).
A na-eji CIC-D120 ion chromatograph na inductively jikọtara plasma mass spectrometry (ICP-MS) iji nyochaa chromium migration (VI) n'ime ihe egwuregwu ụmụaka nwere oke ọsọ na mmetụta dị elu, nke zutere ihe achọrọ nke ụkpụrụ nchekwa egwuregwu ụmụaka nke European Union EN 71-3 2013+A3 2018 na RoHS maka nchọpụta chromium (VI) (dị ka IEC 62321) .Dịka (EU) 2018/725, ihe 13 nke Part III nke European Union Toy Safety Directive 2009/48/EC Annex II. A na-edozi oke mbugharị nke chromium (VI) dị ka ndị a:
Oge nzipu: Eprel-18-2023