Jam dwoko piny (Rongalite)
Nying kemikol: Sodium hydrosulfite
Ka juporo ku piny ma nyayu yamo, Rongalite nyayu peko manok ikum bongo. Ecopu tiyu kudu iwi bongo ma juyubu ku yuk matung tung manangu epe ku ret, eno re ma julwongo ni "Rongalite" (ma the lembe "powder maber" i dhok mi China). sodium hydrosulfite ubedo piny macol ma nya nya ma nya nya ma nya nya ma nya nya ma nya nya ma nya nya 300°C (decomposition) man nya 250°C. Ecopo nyai ungo i ethanol ento nyai i sodium hydroxide solution. Ka etuc ku pii, edwoko piny matek man ewang.
Lembe mwa mi gwoko ber pa sodium hydrosulfite utiye matek mandha, ku batch acel acel ma jutimo i factory inspection man SGS audits, mi neno nia ber pa sodium copo cung matek i kare. Dii kaneni mi nwangu wel ma piny.