Koj cov khoom tseem ceeb yog dab tsi?

1. sodium sulfite 97%, 96%, 93%, 90%;
2.sodium metabisulfite 96,5%, qib zaub mov thiab qib kev lag luam
3. rongalite pob / hmoov 98%;
4. sodium carbonate;
5. sodium hydrosulfite 90%, 88%, 85%
6. sodium fluorosilicate;
7, sodium formate
8. zinc sulfate mono / hepta
9. sodium fluoride
10. heptanaphthenic acid