What are the hazards associated with Sodium Hydroxide? (use the hazard codes from the product data sheet available through SigmaAldrich)

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The question asks us to identify the hazard statements (from the SigmaAldrich product data sheet) that apply to Sodium Hydroxide and that correspond to the given answer options.
Option 1: Flammable solid. Sodium hydroxide is not a flammable substance; it is a strong caustic base and does not present flammability hazards. Therefore this statement is incorrect.
Option 2: May be corrosive to metals. Sodium hydroxide is known to be corrosive to many metals, which can lead to material degradation or failure upon contact. This aligns with typical corrosion hazard language in SDS payloads, making this option correct.
Option 3: Causes severe skin burns and eye damage. This is a well-established hazard for sodium hydroxide due to its highly caustic nature, and SDSs consistently list this as a major risk. Thus, this option is correct.
Option 4: Harmful if inhaled. While strong bases can cause irritation, many SDSs for aqueous sodium hydroxide solutions emphasize skin and eye corrosion rather than a specific inhalation hazard category. In dry solid form or concentrated aerosols, inhalation hazards can exist, but the standard product data sheet often prioritizes contact hazards over inhalation as the primary risk. Given typical labeling for sodium hydroxide, this statement is not the primary hazard code highlighted and is generally considered not applicable as a standalone classification for the common solid/solution forms.
Option 5: May cause respiratory irritation. Similar to Option 4, the dominant hazard is caustic contact with skin and eyes. Respiratory irritation is not the primary hazard code associated with standard sodium hydroxide classifications in many SDS summaries, so this option is not the main hazard listed.
Option 6: Toxic to aquatic life. While strong bases can affect aquatic life if released in significant quantities, the explicit aquatic toxicity labeling is not the primary hazard code typically associated with sodium hydroxide in SDS summaries. Therefore this option is less accurate as a primary hazard descriptor for this chemical.
In summary, the two statements that align with the hazard codes commonly found on SigmaAldrich SDSs for sodium hydroxide are that it May be corrosive to metals and Causes severe skin burns and eye damage. The remaining options do not reflect the main hazard codes used for this chemical in standard product data sheets.

Organic Chemistry Labs - CHEM2003 (UNUK) (24-25) 1 - Wadsworth-Emmons PreLab

What are the hazards associated with Sodium Hydroxide? (use the hazard codes from the product data sheet available through SigmaAldrich)

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