"Ward's Science"

CAS Number: 7788-99-0
Formula Weight: 499.41
Formula: CrK(SO₄)₂·12H₂O
Hazard Info: Toxic
Density (g/mL): 1.813
Freezing Point (°C): 89
Solubility: Water
Synonyms: Chrom Alum Dodecahydrate
Shelf Life (months): 12
Storage: Green

Easy way to test soil for the macronutrients that grow healthy plants.

The Principles of Stoichiometry Lab Activity is designed for students to see what types of reactions occur when different solutions are mixed together.

Easy way to test water for carbon dioxide concentration.

CAS Number: 7789-09-5
Formula Weight: 252.06
Formula: (NH₄)₂Cr₂O₇
Hazard Info: Oxidizer, Flammable, Toxic, Irritant
Density (g/mL): 2.15
Freezing Point (°C): 170
Solubility: Water and Alcohol
Synonyms: Ammonium Bichromate, Dichromic Acid Diammonium Salt, Diammonium Dichromate(VI)
Shelf Life (months): 12
Storage: Yellow

Easy way to test plant samples for their required macronutrients.

Create Potassium Alum Using Chemical Reactions

Easy way to test urban water for multiple factors.

A versatile, ready-to-use staining solution for staining mucopolysaccharides in human cells, such as liver and intestine cells.

Formula Weight: Mixture
Formula: Mixture
Density (g/mL): Approximately 1.0
Boiling Point (°C): >187
Shelf Life (months): 6
Storage: Green

Meets AP Science Practices 2, 4, 5, and 6

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

CAS Number: 1319-46-6
Formula: (PbCO₃)₂ • Pb(OH)₂
Formula Weight: 775.60
Freezing Point (°C): 400
Hazard Info: Toxic, Irritant
Shelf Life (months): 12
Solubility: Acids
Storage: Green
Synonyms: White Lead, Basic Lead Carbonate

Please Note: This product is designed for educational and teaching laboratories and no certificate of analysis is available.

Determine if You have Acid Rain in Your Area.

Construct A Simple Battery!

Monitor and graph temperature change in an endothermic reaction.