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n-Butyric Acid
CAS Number: 107-92-6
Formula Weight: 88.11
Formula: CH3(CH2)2COOH
Hazard Info: Corrosive, Irritant, Strong Odor
Density (g/mL): 0.959
Boiling Point (°C): 163.5
Freezing Point (°C): -5.2
Synonyms: Ethylacetic Acid, Butanoic Acid
Shelf Life (months): 36
Storage: White
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Caffeine
CAS Number: 58-08-2
Formula Weight: 194.20
Formula: C8H10N4O2
Hazard Info: Toxic
Density (g/mL): 1.23
Boiling Point (°C): 178
Freezing Point (°C): 238
Solubility: Chloroform, Water and Alcohol
Synonyms: 1,3,7-Trimethylxanthine
Shelf Life (months): 12
Storage: Blue
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Cobalt (II,III) Oxide
CAS Number: 1308-06-1
Formula Weight: 240.82
Formula: Co3O4
Density (g/mL): 5.2-6.1
Freezing Point (°C): 895
Solubility: Sulfuric Acid
Synonyms: Cobalt(II,III) Tetraoxide, Cobalt Oxide
Shelf Life (months): 36
Storage: Green
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Ethylene Glycol
CAS Number: 107-21-1
Formula Weight: 62.07
Formula: HOCH2CH2OH
Hazard Info: Toxic
Density (g/mL): 1.1135
Boiling Point (°C): 198
Freezing Point (°C): -13
Solubility: Water, Alcohol and Acetone
Synonyms: 1,2-Ethanediol
Shelf Life (months): 12
Storage: Green
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Iron(II) Chloride Tetrahydrate
CAS Number: 13478-10-9
Formula Weight: 198.81
Formula: FeCl2·4H2O
Density (g/mL): 1.93
Boiling Point (°C): 1026
Freezing Point (°C): 105-115
Solubility: Water
Synonyms: Ferrous Chloride Tetrahydrate, Iron(II) Chloride 4-Hydrate
Shelf Life (months): 12
Storage: White
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Magnesium Oxide
CAS Number: 1309-48-4
Formula Weight: 40.30
Formula: MgO
Hazard Info: Toxic
Density (g/mL): 3.65-3.75
Boiling Point (°C): 3600
Freezing Point (°C): 2800
Solubility: Acids and Slightly in Water
Synonyms: Magnesia, Calcinated Magnesia, Calcined Brucite
Shelf Life (months): 12
Storage: Green
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Ward's® Density Blocks Lab Activity
Engage Students in a Hands-On Density Activity
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Elementary Science Olympiad: Metric Mastery
The nation's most exciting science competition now has kits for at-home use!
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Acetanilide
CAS Number: 103-84-4
Formula Weight: 135.17
Formula: CH3CONHC6H5
Density (g/mL): 1.2
Boiling Point (°C): 304
Freezing Point (°C): 115
Solubility: Hot Water, Alcohol, and Organic Solvents
Synonyms: N-phenyl-acetamide
Shelf Life (months): 12
Storage: Green
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Bromophenol Blue
CAS Number: 62625-28-9
Formula Weight: 691.97
Formula: C19H9Br4NaO5S
Density (g/mL): >1
Boiling Point (°C): Decomposes
Freezing Point (°C): Decomposes
Solubility: Water
Synonyms: Bromophenol Blue, pH Indicator
Shelf Life (months): 36
Storage: Green
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Clayton Yellow
CAS Number: 1829-00-1
Formula: C28H19N5Na2O6S4
Formula Weight: 695.68Shelf Life (months): 36
Solubility: Water, Alcohol
Storage: Green
Please Note: This product is designed for educational and teaching laboratories and no certificate of analysis is available.
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Toluene
CAS Number: 108-88-3
Formula Weight: 92.14
Formula: C6H5CH3
Density (g/mL): 0.863
Boiling Point (°C): 109-112
Freezing Point (°C): -95
Solubility: Alcohol
Synonyms: Toluol, Methyl Benzene
Shelf Life (months): 36
Storage: Red
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Mercury(II) Chloride
CAS Number: 7487-94-7
Formula Weight: 271.50
Formula: HgCl2
Hazard Info: Highly Toxic
Density (g/mL): 5.44
Boiling Point (°C): 300
Freezing Point (°C): 277
Solubility: Water, Alcohol, and Acetic Acid
Synonyms: Mercuric Chloride, Mercury Bichloride, Mercury Dichloride
Shelf Life (months): 12
Storage: Blue
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Heptane
CAS Number: 142-82-5
Formula Weight: 100.21
Formula: CH3(CH2)5CH3
Hazard Info: Flammable, Toxic
Density (g/mL): 0.7-0.71
Boiling Point (°C): 90-100
Solubility: Alcohol, Ether and Chloroform
Synonyms: n-Heptane, normal-Heptane
Shelf Life (months): 36
Storage: Red
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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




