"safety"
Tannic Acid
CAS Number: 1401-55-4
Formula Weight: 1701.23
Formula: C76H52O46
Density (g/mL): >1.0
Freezing Point (°C): 210-215
Solubility: Water, Alcohol, and Acetone
Synonyms: Tanin, Gallotannic Acid, Pyrogallol Tannin
Shelf Life (months): 36
Storage: Green
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Methyl Ethyl Ketone
CAS Number: 78-93-3
Formula Weight: 72.11
Formula: CH3COCH2CH3
Hazard Info: Flammable, Narcotic
Density (g/mL): 0.804-0.806
Boiling Point (°C): 79-81
Freezing Point (°C): -86.5
Solubility: Alcohol and Ether
Synonyms: 2-Butanone, MEK, Butanone
Shelf Life (months): 36
Storage: Red
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Silver Chloride
CAS Number: 7783-90-6
Formula Weight: 143.32
Formula: AgCl
Hazard Info: Toxic
Density (g/mL): 5.56
Boiling Point (°C): 1550
Freezing Point (°C): 455
Solubility: Water, Ammonium Hydroxide, Sulfuric Acid, Sodium Thiosulfate and Potassium Bromide Solution
Synonyms: Chloride Salt of Silver
Shelf Life (months): 36
Storage: Green
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Calcium Oxide
CAS Number: 1305-78-8
Formula Weight: 56.08
Formula: CaO
Hazard Info: Irritant (produces heat with water)
Density (g/mL): 3.2-3.4
Boiling Point (°C): 2850
Freezing Point (°C): 2572
Solubility: Acids and reacts with Water
Synonyms: Lime, Quick Lime, Burnt Lime
Shelf Life (months): 12
Storage: White
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Ammonium Molybdate
CAS Number: 12054-85-2
Formula Weight: 1235.86
Formula: (NH4)6Mo7O24·4H2O
Hazard Info: Irritant
Density (g/mL): 2.276
Boiling Point (°C): Decomposes
Freezing Point (°C): Decomposes
Synonyms: Ammonium Heptamolybdate Tetrahydrate
Shelf Life (months): 36
Storage: Green
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Ethyl Ether
CAS Number: 60-29-7
Formula Weight: 74.12
Formula: (C2H5)2O
Hazard Info: Flammable, Explosive, Toxic
Density (g/mL): 0.71
Boiling Point (°C): 35.8
Freezing Point (°C): -123
Solubility: Common Organic Solvents and Slightly in Water
Synonyms: Diethyl Ether, Ether
Shelf Life (months): 12
Storage: Red
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Sucrose Solution
CAS Number: 57-50-1
Formula Weight: 342.30
Formula: C12H22O11
Density (g/mL): 1.58
Freezing Point (°C): 185.5
Solubility: Water
Synonyms: Cane Sugar, Beet Sugar
Shelf Life (months): 36
Storage: Green
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Ammonium Persulfate
CAS Number: 7727-54-0
Formula Weight: 228.20
Formula: (NH4)2S2O8
Hazard Info: Oxidizer, Reactive
Density (g/mL): 1.92
Solubility: Water
Synonyms: Ammonium Peroxydisulfate, Diammonium Peroxydisulfate
Shelf Life (months): 36
Storage: Yellow
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Iron(III) Chloride
CAS Number: 7705-08-0
Formula Weight: 162.21
Formula: FeCl3
Hazard Info: Irritant, Corrosive, Hygroscopic
Density (g/mL): 2.80-2.90
Boiling Point (°C): 307
Freezing Point (°C): 307
Solubility: Water
Synonyms: Ferric Chloride Anhydrous
Shelf Life (months): 12
Storage: White
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Phosphoric Acid
CAS Number: 7664-38-2
Formula Weight: 98.00
Formula: H3PO4
Hazard Info: Corrosive, Toxic, Irritant
Density (g/mL): >1.573
Boiling Point (°C): 135-158
Freezing Point (°C): -17-21
Solubility: Water and Alcohol
Synonyms: ortho-Phosphoric Acid
Shelf Life (months): 36
Storage: White
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Sulfamic Acid
CAS Number: 5329-14-6
Formula Weight: 97.09
Formula: H3NO3S
Hazard Info: Toxic
Density (g/mL): 2.15
Freezing Point (°C): 205
Solubility: Water, Alcohol and Acetone
Synonyms: Sulfamidic Acid, Aminosulfonic acid
Shelf Life (months): 36
Storage: White
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Magnesium Nitrate 6-Hydrate
CAS Number: 13446-18-9
Formula Weight: 256.41
Formula: Mg(NO3)2·6H2O
Hazard Info: Oxidizer, Flammable, Irritant
Density (g/mL): 1.46
Boiling Point (°C): Decomposes
Freezing Point (°C): 89
Solubility: Water and Alcohol
Synonyms: Magnesium Nitrate Hexahydrate
Shelf Life (months): 36
Storage: Yellow
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Oleic Acid
CAS Number: 112-80-1
Formula Weight: 282.47
Formula: CH3(CH2)7CH:CH(CH2)7COOH
Density (g/mL): 0.895
Boiling Point (°C): 286
Freezing Point (°C): 11-14
Solubility: Organic Solvents, Not Water
Synonyms: Oleinic Acid, Red Oil, cis-9-Octadecanoic Acid
Shelf Life (months): 12
Storage: Green
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Sodium Hexametaphosphate
CAS Number: 10124-56-8
Formula Weight: 611.52
Formula: (NaPO3)6
Freezing Point (°C): 628
Solubility: Water
Synonyms: Sodium Polyphosphate
Shelf Life (months): 36
Storage: Green
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Calcium Nitrate 4-Hydrate
CAS Number: 13477-34-4
Formula Weight: 236.15
Formula: Ca(NO3)2·4H2O
Hazard Info: Flammable, Oxidizer, Explosive
Density (g/mL): 2.36
Boiling Point (°C): Decomposes
Freezing Point (°C): 45
Solubility: Water, Alcohol and Acetone
Synonyms: Calcium Nitrate Tetrahydrate, Nitric Acid Calcium(II) Salt
Shelf Life (months): 12
Storage: Yellow
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Ward's® AP Chemistry Investigation 4: Titrations: How Acidic are the Beverages we Drink?
Meets AP Science Practices 1, 2, 3, 4, 5, and 6

