"Ward's Science"

Learn about two forms of passive transport: diffusion and osmosis.

Use Raoult's Law to Determine the Effect of Temperature on Vapor Pressure

Learn about white blood cells, a critical part of the immune system, protecting the body from foreign invaders such as bacteria and viruses.

Paramecium caudatum is a common protist that inhabits a variety of aquatic ecosystems.

Tested to ensure ultra pure quality for molecular biology and sensitive analytical applications.

CAS Number: 212-682-9
Formula Weight: 291.29
Formula: C15H14N3O2Na
Boiling Point (°C): Decomposes
Solubility: Water, Alcohol, Ether and Acetic Acid
Synonyms: Acid Red 2 Sodium Salt, C.I. No. 13020
Shelf Life (months): 36
Storage: Green

CAS Number: 79-09-4
Formula Weight: 74.08
Formula: CH3CH2COOH
Hazard Info: Flammable, Corrosive
Density (g/mL): 0.9950
Boiling Point (°C): 140.8
Freezing Point (°C): -20.7
Solubility: Water, Alcohol, and Chloroform
Synonyms: Propanoic Acid
Shelf Life (months): 36
Storage: White

CAS Number: 64-18-6
Formula Weight: 46.03
Formula: HCOOH
Hazard Info: Corrosive
Density (g/mL): 1.213
Boiling Point (°C): 101
Freezing Point (°C): -5
Solubility: Water, Alcohol and Ether
Synonyms: Methanoic Acid, Formylic Acid
Shelf Life (months): 12
Storage: White

Chemical specifications vary based on the product. For more information, consult the Safety Data Sheet or contact your Ward's representative.

CAS Number: 12124-97-9
Formula Weight: 97.96
Formula: NH₄Br
Density (g/mL): 2.4
Freezing Point (°C): 452
Solubility: Water and Alcohol
Synonyms: Hydrobromic Acid Monoammoniate
Shelf Life (months): 12
Storage: Green

With this activity, teachers just add water to a dry powder for an intriguing, instant illumination in a bag.

CAS Number: 7783-83-7
Formula Weight: 482.19
Formula: FeNH4(SO4)2·12H2O
Density (g/mL): 1.71
Boiling Point (°C): 230
Freezing Point (°C): 40
Synonyms: Ferric Ammonium Sulfate Dodecahydrate, Iron(III) Ammonium Sulfate Dodecahydrate
Shelf Life (months): 12
Storage: Green

CAS Number: 13446-53-2
Formula Weight: 292.25
Formula: MgBr2·6H2O
Synonyms: Magnesium Bromide 6-Hydrate
Shelf Life (months): 12
Storage: Green

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

CAS Number: 69-72-7
Formula Weight: 138.12
Formula: C7H6O3
Density (g/mL): 1.443
Boiling Point (°C): 211
Freezing Point (°C): 158-160
Solubility: Water and Organic Solvents
Synonyms: 2-Hydroxybenzoic acid
Shelf Life (months): 36
Storage: Green

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