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Chemicals for Science Education
Chemicals for science education are available in easy-to-use formats with instructions for students to be introduced to a variety of subjects. These chemicals can be purchased in individual amounts or bulk kits for compatibility with classroom-sized demonstrations or independent studies. Products are designed for educational and teaching laboratories, and may or may not come with a certificate of analysis when ordered.
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Potassium Chromate
CAS Number: 7789-00-6
Formula Weight: 194.21
Formula: K2CrO4
Hazard Info: Toxic
Density (g/mL): 2.732
Freezing Point (°C): 975
Solubility: Water
Synonyms: Dipotassium Chromate, Neutral Potassium chromate
Shelf Life (months): 36
Storage: Blue
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Potassium Dichromate
CAS Number: 7778-50-9
Formula Weight: 294.19
Formula: K2Cr2O7
Density (g/mL): 2.67
Freezing Point (°C): 398
Solubility: Water
Synonyms: Potassium Bichromate
Shelf Life (months): 36
Storage: Yellow
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Potassium Ferrocyanide Trihydrate
CAS Number: 14459-95-1
Formula Weight: 422.41
Formula: K4Fe(CN)6·3H2O
Density (g/mL): 1.853
Freezing Point (°C): >70
Solubility: Water
Synonyms: Yellow Prussiate of Potash
Shelf Life (months): 12
Storage: Green
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Potassium Fluoride
CAS Number: 7789-23-3
Formula Weight: 58.10
Formula: KF
Density (g/mL): 2.481
Boiling Point (°C): 1505
Freezing Point (°C): 859
Solubility: Water and Hydrochloric Acid
Shelf Life (months): 36
Storage: Blue
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Potassium Nitrite
CAS Number: 7758-09-0
Formula Weight: 85.11
Formula: KNO2
Hazard Info: Oxidizer, Flammable, Irritant
Density (g/mL): 1.915
Boiling Point (°C): Explodes at 538
Solubility: Water
Synonyms: Nitrous Acid, Potassium Salt
Shelf Life (months): 36
Storage: Yellow
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Potassium Phosphate Dibasic
CAS Number: 7758-11-4
Formula Weight: 174.18
Formula: K2HPO4
Solubility: Water
Synonyms: Dipotassium hydrogenorthophosphate
Shelf Life (months): 12
Storage: Green
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Potassium Phosphate Monobasic
CAS Number: 7778-77-0
Formula Weight: 136.09
Formula: KH2PO4
Density (g/mL): 2.338
Freezing Point (°C): 253
Solubility: Water
Synonyms: Potassium Dihydrogen Phosphate
Shelf Life (months): 12
Storage: Green
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Potassium Phosphate Tribasic
CAS Number: 7778-53-2
Formula Weight: 212.3
Formula: K3PO4
Density (g/mL): 2.564
Freezing Point (°C): 1340
Solubility: Water
Synonyms: TKP, Tripotassium Orthophosphate, Phosphoric Acid, Tripotassium Salt
Shelf Life (months): 12
Storage: Green
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Potassium Thiocyanate
CAS Number: 333-20-0
Formula Weight: 97.18
Formula: KSCN
Hazard Info: Toxic
Density (g/mL): 1.886
Boiling Point (°C): 500
Freezing Point (°C): 173
Solubility: Water, Alcohol, and Acetone
Synonyms: Thiocyanic Acid Potassium Salt, Potassium Sulfocyanate, Potassium Rhodanide
Shelf Life (months): 12
Storage: Green
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Propylene Glycol
CAS Number: 57-55-6
Formula Weight: 76.10
Formula: CH3CH(OH)CH2OH
Density (g/mL): 1.038
Boiling Point (°C): 187
Freezing Point (°C): -59
Solubility: Miscible with Water and Organic Solvents
Synonyms: 1,2-Propanediol
Shelf Life (months): 36
Storage: Green
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Ribonucleic Acid
CAS Number: 63231-63-0
Solubility: Water and Alcohol
Synonyms: RNA
Shelf Life (months): 36
Storage: Green
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Silver Acetate
CAS Number: 563-63-3
Formula: CH3COOAg
Density: 3.259 g/mL
Solubility: Hot Water and Nitric Acid
Synonyms: Argentous Acetate
Shelf Life: 36 Months
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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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Silver Oxide
CAS Number: 20667-12-3
Formula Weight: 231.74
Formula: Ag2O
Hazard Info: Oxidizer
Density (g/mL): 7.22
Solubility: Ammonium Hydroxide, Nitric Acid, Sodium Thiosulfate Solution, Water
Synonyms: Disilver Oxide, Silver(I) Oxide
Shelf Life (months): 36
Storage: Yellow
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Sodium Bisulfate Anhydrous
CAS Number: 7681-38-1
Formula Weight: 120.06
Formula: NaHSO4
Hazard Info: Irritant
Density (g/mL): 2.435
Freezing Point (°C): 177
Solubility: Water
Synonyms: Sodium Acid Sulfate, Sodium Hydrogen Sulfate
Shelf Life (months): 36
Storage: White
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Sodium Bisulfite
CAS Number: 7631-90-5
Formula Weight: 104.07
Formula: NaHSO3
Density (g/mL): 1.48
Freezing Point (°C): 150
Solubility: Water
Synonyms: Sodium Hydrogen Sulfite
Shelf Life (months): 12
Storage: White

