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Q,IR V SILVER ALINES <br /> hazardous ingredients ofa product, its physical and chemical characteristics (e.g. <br /> flammability, explosive properties), its effect on human health, the chemicals <br /> with which it can adversely react, handling precautions, the types of measures <br /> that can be used to control exposure, emergency and first aid procedures, and <br /> methods to contain a spill. They do not analyzefor potential reactivity of said <br /> chemical with any and all other chemicals they may come in contact with so the <br /> information would not be found on the MSDS Sheets. Please provide an <br /> evaluation of each chemicals stored in the common reagent room, or any other <br /> area where there is a mixing potential, including a discussion of the potential bi- <br /> products, including safety or environmental hazards that may be created if the <br /> chemicalswere to mix in accordance with Rule 6.4.21(5). <br /> Response: We have reviewed the SDSs and assessed the chemicals stored in the common <br /> area and offer the following in response to comment #4. <br /> There are four chemicals stored in the common area: <br /> Zinc Sulfate is a stable compound stored in solid form so potential for mixing is low unless it is <br /> mixed with a liquid. It is reactive with oxidizing agents and strong acids and bases. It is also <br /> incompatible with certain other chemicals such as calcium, lead, strontium, and some <br /> carbonates and hydroxides. None of these types of chemicals is stored in the common area. <br /> Sodium metabisulfite is a stable compound stored in solid form so potential for mixing is low <br /> unless it is mixed with a liquid. It is reactive with strong oxidizers, but none such chemicals are <br /> stored in the common area. Reactions with water or acid release sulfur dioxide gas, which can <br /> be deadly. Aside from the potential safety concern if water is accidently mixed with sodium <br /> metabisulfite (the release of sulfur dioxide gas), the mixing of these chemicals will result in little <br /> to no reaction with little to no safety or environmental hazards from the resulting byproducts. <br /> Copper sulfate is a stable compound and stored in a crystalline (solid)form so potential for <br /> mixing is low unless it is mixed with a liquid. Aqueous copper sulfate reacts with the iron in steel <br /> to produce iron sulfate and copper metal. It is also incompatible with certain other chemicals <br /> such as aluminum and magnesium. None of these chemicals are in the common area, with the <br /> possible exception of steel. However, the steel structure in this area has a protective coating. <br /> Aero 242 is a chemically stable liquid that should be kept away from strong acids and bases, <br /> oxidizers, amines, and free radical initiators. None of these types of chemicals are stored in the <br /> common area. In the event of decomposition, ammonium hydroxide could be released which <br /> could have a secondary reaction with other chemicals, but the ammonium hydroxide is less than <br /> or equal to 1%of Aero 242 and decomposition is unlikely. <br /> 5. Your response to Adequacy Review #1 question 10 indicates that Reagent <br /> 41Pa , � <br />