"Ward's Science"
Navicula
Freshwater. Unicellular; pennate, with bilateral symmetry. Basic culture solution.
Characterized by shells (tests) made of silica, in two parts.
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Methyl Green/Pyronin Y
Formula Weight: Mixture
Formula: Mixture
Density (g/mL): Approximately 1
Synonyms: Methyl Green/Pyronin Y Biological Stain Solution
Shelf Life (months): 36
Storage: Green
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Ward's® Live Bursaria truncatella Culture
Very large ciliate. Feeds on colpidium. Hay medium.
Characterized by cilia; nearly all possess two types of nuclei.
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Ward's® Physiology of the Circulatory System Lab Activity
View Daphnia Heart Rate Easily
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Phenolphthalein
CAS Number: 77-09-8
Formula: C20H14O4
Density: 1.299 g/mL
Solubility: Alcohol and Alkalis
Shelf Life: 36 Months
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Cobalt
CAS Number: 7440-48-4
Formula Weight: 58.93
Formula: Co
Density (g/mL): 8.9
Boiling Point (°C): 2723
Freezing Point (°C): 1493
Solubility: Nitric Acid
Synonyms: Cobalt Metal Pieces
Shelf Life (months): 36
Storage: Green
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p-Dichlorobenzene
CAS Number: 106-46-7
Formula Weight: 147.00
Formula: C6H4Cl2
Hazard Info: Toxic, Irritant
Density (g/mL): 1.458
Boiling Point (°C): 174
Freezing Point (°C): 53
Solubility: Organic Solvents
Synonyms: 1,4-Dichlorobenzene, para-Dichlorobenzene
Shelf Life (months): 12
Storage: Blue
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Innovating Science® Forensic Chemistry of Unknown Substances
Learn about how investigators identify unknown substances to help solve crimes.
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Innovating Science® Distance Learning: Forensic Chemistry of Unknown Substances
Learn the role of a forensic scientist tasked with analyzing and identifying unknown substances collected at a crime scene.
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Congo Red
CAS Number: 573-58-0
Formula Weight: 696.68
Formula: C32H22N6Na2O6S2
Hazard Info: Toxic
Solubility: Water and Alcohol
Synonyms: Direct Red 28, C.I. No. 22120, Congo Red Stain, Congo Red Biostain
Shelf Life (months): 36
Storage: Green
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Innovating Science® Acids, Bases, and the pH Scale
Learn about the differences between acids and bases and the pH scale.
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Wards® STEM Investigations: Create Your Own Power
Set up an electrochemical cell using a variety of materials.
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Electrochemical Remediation of Wastewater
Save Time When Teaching Green Chemistry.
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Lead(II) Acetate Trihydrate
CAS Number: 6080-56-4
Formula Weight: 379.34
Formula: Pb(CH3COO)2·3H2O
Hazard Info: Toxic, Irritant, Carcinogen
Density (g/mL): 2.55
Boiling Point (°C): 280
Freezing Point (°C): 75
Solubility: Water and Glycerin
Synonyms: Lead Acetate
Shelf Life (months): 12
Storage: Blue
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Wright’s Blood Stain
CAS Number: 68988-92-1
Hazard Info: Flammable
Density (g/mL): 0.79
Boiling Point (°C): 65
Freezing Point (°C): -98
Solubility: Alcohol and water
Shelf Life (months): 36
Storage: Red
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VION™ 70% Ethanol, Histology Grade
A excellent choice for long-term storage of histology specimens, at just the right concentration to ensure optimal preservation of tissues.