SIS Hazard Risk and Minimising Risk

O## SIS

• Investigating two reactions $CaC{O}_3(s)+2HCl(aq)\to CaC{l}_{aq}(s)+H_{2}O(l)+C{O}_2(g)$

Hazard §

• potential events that causes harm
• HCl is corrosive

Risk §

• how likely of the occurrence of event that causes harm

Minimise Risk §

• ??

another 1 §

• Investigating two reactions $N{a}_2{S}_2{O}_3(aq)+2HCl(aq){\to }_{2}NaCl(aq)+S{O}_2(g)+S(s)+H_{2}O(l)$

Hazard §

• 1.0 molL-1 HCl (aq) corrosive
• sulphur dioxide (g) is toxic

Risk §

• contact with skin, you have burns, contact with eyes you have irritation.
• sulphur dioxide causes irritation to respiratory system when inhaled

Minimise Risk §

• wear closed shoes
• use fume hood/respirator
• carry the experiment out in well ventilated area.

another 1 §

• Investigating two reactions $Cu(s)+4HN{O}_3\to Cu(N{O}_3)2+2H_{2}O+2N{O}_2$

Hazard §

• $N{O}_2$ is toxic, nauseous gas.
• $HN{O}_3$ is corrosive

Risk §

• causes irritation to respiratory system when inhaled.
• contact with skin cause burns and causes irritation with eyes.

Minimise Risk §

• use fume cupboard/hood