Optical brightener (OB-1)
Specifications:
Yam khoom | Txuj |
Qhov tshwm sim | Yellowish ntsuab crystal hmoov los yog Yellowish crystal hmoov |
Melting point | 357-361 ℃ |
Purity | ≥98.5% |
Xim ntxoov ntxoo | Xiav |
Kev zoo | ≥300 mesh |
Cov ntsiab lus dej ceev ceev | ≤0.5% |
Sau koj cov lus ntawm no thiab xa tuaj rau peb