Wɔ aduruyɛdan mu no, ɛsɛ sɛ wɔyɛ ahwɛyiye kɛse bere a woredi sodium sulfide ho dwuma no. Ansa na wɔde bedi dwuma no, ɛsɛ sɛ wɔhyɛ ahobammɔ ahwehwɛ ne rɔba nsateaa, na eye sɛ wɔbɛyɛ oprehyɛn no wɔ wusiw a wɔde hyɛ mu mu. Sɛ wobue reagent toa no wie a, ɛsɛ sɛ wɔde to plastic bag mu ntɛm ara na amma nsu a ɛwɔ mframa mu no antwe, na ɛno bɛma ayɛ aduru a wɔde hyɛ mu. Sɛ toa no bubui wɔ akwanhyia mu a, mfa nsu nhohoro! Nea edi kan no, fa anhwea anaa dɔte a ayow kata nea ahwie agu no so, afei fa plastic sɔw boaboa ano gu nwura ade a wɔahyira so mu.

Yɛne yɛn a yɛbɛyɛ adwuma abom no nyɛ dadwen titiriw, ɛde COA nhwehwɛmu adansedi nkrataa ne MSDS ahobammɔ ho nsɛm nkrataa a wontua hwee ma, ne afei nso ɛboa sɔhwɛ a ɛwɔ tumi a ɛto so abiɛsa. Nnamfo a wɔwɔ ahiade wɔ akwaaba sɛ wɔne yɛn nni nkitaho bere biara denam ha a wɔbɛkyere so!