Outline the steps you would take to conduct a thorough risk assessment of chemical hazards in the workplace as a environmental health and safety officer
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Outline the steps you would take to conduct a thorough risk assessment of chemical hazards in the workplace as a environmental health and safety officer
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- doug began preparing laboratory surface disinfectant from chlorine bleach. he put on a chemical resistant apron and gloves and then removed the bleach container from the special chemical cabinet. he carefully placed the container on the laboratory benchtop and began to add the chlorine bleach to distilled water. nearby workers began complaining of burning eyes. doug was reprimanded by the supervisor. Explain why.Which of the following is a benefit of implementing a Total Productive Maintenance (TPM) program? a) Reduced downtime b) Increased production costs c) Higher inventory levels d) Longer lead timesnitric acid chemical name chemical formula other common names molecular weight appearance state (solid, liquid, gas) transparency (opaque, transparent, translucent) colour reactivity data (corrosive, flammable, oxidizer, incompatible chemicals, other chemicals it reacts with) fire and explosion data toxicological data storage information preventative measures to be taken when using the chemical first aid procedures (the 2 most common) disposal method the 4 HMIS ratings (health, flammability, physical hazard and personal protective equipment) at the end, you may also add a short section in which you add a few personal comments about the chemical in question
- Refer to Figure 1 and answer the following questions: (i) (ii) Pictograms are symbols used in Global Harmonized System (GHS) to make hazard communication more effective. Use one key word to describe the meaning of Pictogram 1, 3, 4, 8 respectively. Provide an example of chemical compound for each. Assign relevant pictograms to the following activities. Activity 1: Heating sodium chloride with concentrated sulfuric acid Activity 2: Preparing aqueous sodium borohydride in a closed glass vessel Activity 3: Adding diethylene glycol to potassium permanganate solid 1 4 2 5 3 6 th 7 8 9 Figure 1. Pictograms under GHS system.SALICYLIC ACID chemical name chemical formula other common names molecular weight appearance state (solid, liquid, gas) transparency (opaque, transparent, translucent) colour reactivity data (corrosive, flammable, oxidizer, incompatible chemicals, other chemicals it reacts with) fire and explosion data toxicological data storage information preventative measures to be taken when using the chemical first aid procedures (the 2 most common) disposal method the 4 HMIS ratings (health, flammability, physical hazard and personal protective equipment) at the end, you may also add a short section in which you add a few personal comments about the chemical in questionDescribe the process of catalytic cracking used in the petroleum refining industry Your answer must also include: · A balanced chemical equation, physical states included, and reaction conditions stated · Examples of a product formed from catalytic cracking (in petroleum refining) and its use
- Describe the process of catalytic cracking used in petroleum refining industry.Your answer must include : (1) a balanced chemical equation inluding physical states and reaction conditions (2) example of a product formed from catalytic cracking in petroleum refining and its useIn any manufacturing process, reaction monitoring ensures that a chemical reaction proceeds as expected. Table 1 shows the monitoring data for the formation of chlorohexane, collected using a technique called gas chromatography. Note that the concentrations of the chlorohexane solutions are given in millimoles per litre (mmol l–1). The abbreviation mM (millimolar) is frequently used. Plot a graph of the data in Table 1. The graph should be drawn on graph paper or use fine grid if it’s drawn on Excel. Elapsed Time/Hours Concentration of Chlorohexane/mM 0 0 2 40 4 65 6 80 8 90 10 95 12 99The research group has recently focused on identifying the chemical properties of fluorocarbons, such as CF4 and C2F4. These fluorocarbons display a very different reactivity compared to hydrocarbons. Teflon (C2F4)n is a fluoropolymer. When Teflon is mixed with silica at high temperature, all solid decomposes into gases. Write down the reactions that can take place during the process and explain your reasoning.
- Historically, toxicology testing has been focused on one chemical at a time, yet we are rarely expose to chemicals in isolation. Why do you think this approach to testing has been taken? What challenges may be involved in studying mixtures of chemicals?The chart shows average CO2 emissions for fossil fuel vehicles (gasoline, diesel, and hybrid gas‑electric), as well as electric vehicles. The ordinate is mg CO2 per mile driven per pound mass of the vehicle (called curb weight). For electric vehicles, CO2 emission varies in U.S. states because of the mix of fuels used to generate electricity. If electricity came entirely from solar power, there would be little CO2 associated with its production. California has the lowest CO2 emission for producing electricity and Ohio has the highest because it depends heavily on coal‑fired power plants. The chart does not include CO2 emission from manufacturing vehicles. When normalized for distance driven by each kind of vehicle before it is scrapped, CO2 emission associated with manufacturing electric vehicles is estimated to be 25–75% greater than CO2 emission associated with manufacturing gasoline and diesel vehicles. If manufacturing were included, CO2 emission associated with electric vehicles…Write dimly, brightly, not at all to the intensity and classify what kind the chemical is depending on its electrical conductivity
