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.
Sodium Metabisulfite
CAS Number: 7681-57-4
Formula Weight: 190.10
Formula: Na2S2O5
Density (g/mL): 1.33
Boiling Point (°C): 104
Solubility: Water and Alcohol
Synonyms: Sodium Pyrosulfite Anhydrous
Shelf Life (months): 12
Storage: Green
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Sodium Nitrite
CAS Number: 7632-00-0
Formula Weight: 69.00
Formula: NaNO2
Hazard Info: Oxidizer, Flammable, Explosive, Toxic
Density (g/mL): 2.17
Freezing Point (°C): 270
Solubility: Water and Alcohol
Synonyms: Nitrous Acid Sodium Salt
Shelf Life (months): 36
Storage: Yellow
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Sodium Oxalate
CAS Number: 62-76-0
Formula Weight: 134.00
Formula: (COONa)2
Hazard Info: Toxic
Density (g/mL): 2.34
Freezing Point (°C): 250-270
Synonyms: Ethanedioic Acid Disodium Salt
Shelf Life (months): 12
Storage: White
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Sodium Phosphate Dibasic 7-Hydrate
CAS Number: 7782-85-6
Formula Weight: 268.07
Formula: Na2HPO4·7H2O
Density (g/mL): 1.68
Solubility: Hot Water
Synonyms: Disodium Phosphate 7-Hydrate
Shelf Life (months): 12
Storage: Green
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Sodium Phosphate Dibasic Anhydrous
CAS Number: 7558-79-4
Formula Weight: 141.96
Formula: Na2HPO4
Density (g/mL): 1.52
Solubility: Hot Water
Synonyms: Disodium Hydrogen Phosphate
Shelf Life (months): 12
Storage: Green
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Physiological Saline
CAS Number: Mixture
Formula: Mixture
Density: Approximately 1 g/mL
Boiling Point: Approximately 100°C
Freezing Point: Approximately 0°C
Synonyms: Isotonic Saline Solution
Shelf Life: 24 Months
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Resazurin
CAS Number: 62758-13-8
Formula: Mixture
Shelf Life (months): 12
Solubility: Miscible with Water
Storage: Green
Synonyms: Resazurin, Water Solution
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Acid Alcohol
CAS Number: Mixture
Formula Weight: Mixture
Formula: Mixture
Hazard Info: Flammable, Toxic
Density (g/mL): 0.7919-0.7955
Boiling Point (°C): 74-80
Freezing Point (°C): -114
Solubility: Water
Shelf Life (months): 12
Storage: Red
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Potassium Sodium Tartrate
CAS Number: 6381-59-5
Formula Weight: 282.23
Formula: KNaC4H4O6·4H2O
Hazard Info: Oxidizer, Toxic
Density (g/mL): 2.065
Boiling Point (°C): 105-130
Freezing Point (°C): 36.4
Solubility: Water and Alcohol
Shelf Life (months): 36
Storage: Yellow
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Methyl Green
CAS Number: 7114-03-6
Formula Weight: 608.78
Formula: C27H35Cl2N3·ZnCl2
Density (g/mL): >1
Boiling Point (°C): Decomposes
Solubility: Moderately soluble in water
Shelf Life (months): 36
Storage: Green
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Ward's® WARDSafe™
Specimen Holding Fluid, Dilute one part to nine parts water for use.
Shelf Life (months): 36
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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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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Limewater
CAS Number: 7732-18-5
Formula Weight: 74.10
Formula: Ca(OH)2
Solubility: Water
Synonyms: Calcium Hydroxide Water Solution
Shelf Life (months): 12
Storage: Green
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Ward's® Science Chemical Start-Up Kit
We have all the chemicals you will need!
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Sodium Perborate Tetrahydrate
CAS Number: 10486-00-7
Formula: NaBO3·4H2O
Hazard Info: Toxic if inhaled; oxidizer
Boiling Point (°C): 130-150°C
Freezing Point (°C): 63°C
Solubility: Moderately soluble in water
Shelf Life (months): 36
Storage: Yellow
Note: The chemical specifications for some of the products on this page may differ from the specirications listed above. For more information, consult the Safety Data Sheet or contact your Ward's representative.