✔ 最佳答案
Q1﹐Cl2 既密度係~70﹐ 空氣大約係28.8, 所以當氯氣無同其他野發生化學作用的話﹐佢的而且確係會接近地面多D。
Q2﹐人係用鼻,口 or 皮膚去吸入氯氣既....講笑姐....在正常情況下﹐少量吸入氯氣係唔會死人﹐通常係D人唔小心處理化學品﹐先會產生大量(或者係致命劑量)既氯氣﹐咁先會有問題姐..!!
其實﹐你呢條問題呢...正正係講緊.如果泄漏氯氣﹐你點樣可以最遲先中毒...因為氯氣會沉底﹐所以你在較高既位置﹐係會遲少少先中毒既﹗﹗
Q3﹐
0.014 to 0.054 ppm: tickling of the nose﹔
0.04 to 0.097 ppm: tickling of the throat﹔
0.06 to 0.3 ppm: itching of the nose and cough, stinging, or dryness of the nose and throat﹔
0.35 to 0.72 ppm: burning of the conjunctiva and pain after 15 minutes﹔
>1.0 ppm: discomfort ranging from ocular and respiratory irritation to coughing, shortness of breath, and headaches﹔
1 to 3 ppm: mild mucous membrane irritation﹔
30 ppm: chest pain, vomiting, dypsnea, cough﹔
46 to 60 ppm: toxic pneumonitis and pulmonary edema﹔
430 ppm: lethal after 30 minutes;
1,000 ppm: fatal within a few minutes.
九五年四月,科大研究生梁偉卓都係在實驗室意外﹐吸入氯氣致死﹗