First Year Chem Laboratory Stockroom-Reagents

Acetic Acid Solution 2.0M

Molecular Formula: C₂H₄O₂ or CH₃COOH

Formula Weight: 60.05 g/mol

Appearance: Colourless, clear liquid

Safety: Can cause burns/blisters if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

Aluminon Solution

Molecular Formula: C₂₂H₂₃N₃O₉

Formula Weight: 473.43 g/mol

Appearance: Solid (made from): Yellow-brown crystals. Solution (in lab): red aqueous solution.

Safety: If gets on the skin, wash with soap and water. If gets in the eye, rinse with cold running water at the eyewash station.

Aluminum Foil

Molecular Formula: Al

Formula Weight: 26.98 g/mol

Appearance: Silver, ductile and malleable metal.

Safety: N/A

Ammonia 6M

Molecular Formula: NH₃

Formula Weight: 17.031

Appearance: Colourless, clear liquid.

Safety: Can cause burns/blisters if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

Ammonium Hydroxide Solution 6M

Molecular Formula: NH₄OH

Formula Weight: 35.046 g/mol

Appearance: Colourless, clear liquid.

Safety: Can cause burns/blisters if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

Barium Chloride Solution

Molecular Formula: BaCl₂

Formula Weight: 208.23 g/mol (anhydrous) 244.26 g/mol (dihydrate)

Appearance: Solid (made from): White solid. Solution (in lab): clear liquid, pale yellow.

Safety: Can cause burns if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

             Deionized Water

Molecular Formula: H₂O

Formula Weight: 18.01534

Appearance: Clear liquid.

Safety: N/A

Ethanol

Molecular Formula: C₂H₆O

Formula Weight: 46.069 g/mol

Appearance: Colourless, clear liquid.

Safety: Can cause irritation if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

50% Water/Ethanol Solution

Appearance: Colourless, clear liquid.

Safety: Can cause irritation if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

     Food Dyes

Red 2 C₂₀H₁₁N₂Na₃O₁₀S₃ 604.47 g/mol

Red 40 C₁₈H₁₄N₂Na₂O₈S₂ 496.42 g/mol

Blue 1 C₃₇H₃₄N₂NaO₉S₃ 792.85 g/mol

Blue 2 C₁₆H₁₀N₂NaO₈S₂⁺ 445.4 g/mol

Yellow 5 C₁₆H₉N₄Na₃O₉S₂ 534.3g/mol

Yellow 6 C₁₆H₁₀N₂Na₂O₇S₂ 452.36 g/mol

Green 3 C₃₇H₃₄N₂O₁₀S₃⁺ 765.89 g/mol

Hydrochloric Acid Solution 1.0M

Molecular Formula: HCl

Formula Weight: 36.46 g/mol

Appearance: Colourless, clear liquid.

Safety: Can cause burns/blisters if comes into contact with skin. If gets in the eye, rinse for at least 10 minutes with cold running water at the eyewash station. If inhaled, can cause coughing.

     Kool-Aid Powdered Drink

Appearance: Coloured crystals.

Flavours: Lemon-Lime and Grape

Safety: N/A

Phenolphthalein Indicator

Molecular Formula: C₂₀H₁₄O₄

Formula Weight: 318.328 g/mol

Appearance: White powder. Colourless, clear liquid (in solution).

Safety: N/A

Potassium Hydrogen Phthalate

Molecular Formula: KHP

Formula Weight: 204.222 g/mol

Appearance: White powder.

Safety: Can cause irritation if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

Potassium Hydroxide Solution 1.5M

Molecular Formula: KOH

Formula Weight: 56.11 g/mol

Appearance: Solid (made from): White solid. Solution (in lab): Clear, colourless liquid.

Safety: Can cause irritation if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

Sodium Hydroxide Solution 1.0M

Molecular Formula: NaOH

Formula Weight: 39.9971 g/mol

Appearance: Solid (made from): White, waxy, opaque crystals. Solution (in lab) Clear, colourless liquid.

Safety: Can cause irritation if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

Sodium Sulfate Solution 0.35M

Molecular Formula: Na₂SO₄

Formula Weight: 142.04 g/mol (anhydrous) 322.20 g/mol (decahydrate)

Appearance: Solid (made from): White solid. Solution (in lab) Clear, colourless liquid.

Safety: N/A

Sulfuric Acid Solution 9.0M

Molecular Formula: H₂SO₄

Formula Weight: 98.079 g/mol

Appearance: Colourless, clear liquid.

Safety: Can cause burns/blisters if comes into contact with skin. If gets in the eye, rinse for at least 20 minutes with cold running water at the eyewash station.

 Unknown Lead Sample (solid)

Molecular Formula:?

Formula Weight:?

Appearance:?