"Ward's Science"

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: 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

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

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: 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: 1314-98-3
Formula Weight: 97.45
Formula: ZnS
Density (g/mL): 4.0
Solubility: Acids
Synonyms: Sachtolith
Shelf Life (months): 36
Storage: Green

CAS Number: 10028-22-5
Formula Weight: 562
Formula: Fe2(SO4)3·nH2O
Density (g/mL): 3.1
Solubility: Water
Synonyms: Ferric Sulfate, Monsel's Salt
Shelf Life (months): 12
Storage: Green

CAS Number: 9002-89-5
Formula: CH2CHOHn
Synonyms: PVA, Ethanol Homopolymer
Shelf Life: 12 Months

CAS Number: 128-37-0
Formula Weight: 220.35
Formula: C₁₅H₂₄O
Hazard Info: Flammable, Toxic, Irritant
Density (g/mL): 0.899
Boiling Point (°C): 265
Freezing Point (°C): 69.44
Synonyms: 2,6-Di-Tert-Butyl-4-Methylphenol, BHT
Shelf Life (months): 36
Storage: Green

CAS Number: 7783-85-9
Formula Weight: 392.14
Formula: Fe(NH4)2(SO4)2·6H2O
Density (g/mL): 1.86
Freezing Point (°C): 100-110
Solubility: Water
Synonyms: Ferrous Ammonium Sulfate Heptahydrate, Iron(II) Ammonium Sulfate 6-Hydrate
Shelf Life (months): 12
Storage: Green

CAS Number: 10099-74-8
Formula: PbNO32
Density: 4.53 g/mL
Solubility: Water and Alcohol
Synonyms: Lead Dinitrate
Shelf Life: 36 Months

CAS Number: 1309-60-0
Formula Weight: 239.19
Formula: PbO2
Hazard Info: Toxic, Oxidizer
Density (g/mL): 9.2
Solubility: Acetic Acid
Synonyms: Lead Dioxide, Lead Peroxide
Shelf Life (months): 36
Storage: Yellow

Water Bodies are Dynamic Systems

CAS Number: 1317-65-3
Formula: CaCO3
Density: 2.71 g/mL
Solubility: Water and Acids
Synonyms: Precipitated Chalk, Natural Chalk, Powdered Chalk
Shelf Life: 36 Months
Storage: Green