1) Aha Bekee: 2-nitrodiphenylaminel

2) Usoro ihe omimi: C₁₂H₁₀N₂O₂

3) Atiya: Onye na-ahụ maka mgbochi

4) Ihe ngosi teknụzụ isi

* Mara: Enwere ike idozi ihe ngosi akọwapụtara dịka ihe achọrọ.

5) Ntuziaka nchekwa maka ojiji

Kpọtụrụ nwere ike ịkpata mgbakasị anụ ahụ, oke iwe anya, ma nwee ike ịkpata mgbakasị iku ume;

A na-arụ ọrụ ahụ n'ebe ndị nwere mpaghara ma ọ bụ ụlọ ọrụ ikuku zuru oke;

Yiri ihe nkpuchi gas filter, gloves mmanụ na-eguzogide ọgwụ, ugogbe anya kemịkalụ, yi uwe ọrụ mgbochi gas;

Nchekwa na ojiji n'okpuru ọnọdụ okpomọkụ nkịtị, ezigbo nkwụsi ike.