What do you do with your unused chemicals at the end of lab?

Question

BlackTom AI · Accepted Answer

When handling unused lab chemicals, the first step is to assess the safety and regulatory guidance for chemical waste management. 
Option 1: 'Pour them down the sink.' This is unsafe and typically prohibited because many chemicals can react, corrode pipes, or contaminate wastewater with hazardous substances. It ignores waste classification and disposal rules. 
Option 2: 'Determine what type of waste it is and then dispose of it in the correct waste container.' This aligns with standard lab safety practices: identify whether the waste is hazardous, reactive, corrosive, flammable, or otherwise regulated, and place it in the appropriate container for proper disposal or treatment. It reflects the correct workflow of waste segregation. 
Option 3: 'Put them back into the stock chemical container.' This can lead to contamination, incompatible reactions, and accidental exposure. It also violates good inventory control and may breach chemical hygiene rules. 
Option 4: 'Leave them on the lab bench for the next class to use.' Leaving chemicals exposed increases risk of spills, exposure, mislabeling, and accidental mixing. It fails to ensure proper containment and safety between users. 
Overall, option 2 is the responsible, compliant approach because it emphasizes waste identification and proper segregation before disposal, which is the core principle of lab chemical waste management. The other options either ignore risk, violate standard procedures, or create opportunities for accidents and contamination.

2025SpringC-T-CHM235-11363-11364-15687-16676-24507-30618 Introduction & Safety Quiz

What do you do with your unused chemicals at the end of lab?

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实验室内应处理的化学品在实验室废弃化学品时，

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2025SpringC-T-CHM235-11363-11364-15687-16676-24507-30618 Introduction & Safety Quiz

What do you do with your unused chemicals at the end of lab?

查看解析

登录即可查看完整答案

类似问题

Which of the following guidelines for handling waste are given in the text?

Which of the following chemicals should never be disposed of in the sink?

When should a student request a replacement liquid hazardous waste bottle for the lab?

How should you dispose of paper towels, weigh paper, or glove contaminated with trace amounts of hazardous chemical(s)?

Which reaction products can be disposed of by rinsing them down the drain?

During lab, you need 5.0 mL of a copper reagent but you accidentally pour out 8.0 mL. What should you do with the excess copper reagent?

Where should you dispose of waste after an experiment in the laboratory?

实验室内应处理的化学品 在实验室废弃化学品时，

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单

实验室内应处理的化学品在实验室废弃化学品时，