"Ward's Science"

Use these stains in the first step to identifying your unknown bacteria.

CAS Number: 1332-58-7
Formula: Al2O3·2SiO2·2H2O
Density (g/mL): 2.0-3.0
Freezing Point (°C): >1,300
Solubility: Insoluble in Water
Synonyms: Aluminum Silicate Dihydrate, China Clay
Shelf Life (months): 36
Storage: Green

CAS Number: 64741-65-7
Formula Weight: Mixture
Formula: Mixture
Hazard Info: Flammable
Density (g/mL): 0.758
Boiling Point (°C): 175-195
Solubility: Many Organic Solvents
Synonyms: Naphtha (Petroleum), Heavy Alkylate
Shelf Life (months): 36
Storage: Red

CAS Number: 87-69-4
Formula Weight: 150.09
Formula: C4H6O6
Density (g/mL): 1.76
Freezing Point (°C): 169-172
Solubility: Alcohol and Water
Synonyms: 2,3-Dihydroxybutanedioic Acid
Shelf Life (months): 36
Storage: Green

CAS Number: 8006-54-0
Formula Weight: Mixture
Formula: Mixture
Density (g/mL): 0.932-0.945
Freezing Point (°C): 38-44
Solubility: Water
Synonyms: Wood Fat Anhydrous, Wool Wax
Shelf Life (months): 36
Storage: Green

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

CAS Number: 7758-95-4
Formula Weight: 278.12
Formula: PbCl2
Hazard Info: Toxic
Density (g/mL): 5.85
Boiling Point (°C): 950
Freezing Point (°C): 501
Solubility: Hot Water
Synonyms: Lead Chloride
Shelf Life (months): 36
Storage: Blue

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

Density (g/mL): 0.97
Synonyms: Lens Cleaner, Lens Cleaning Solution, Microscope Lens Solution
Shelf Life (months): 36
Storage: Red

CAS Number: 554-13-2
Formula Weight: 73.89
Formula: Li2CO3
Hazard Info: Irritant
Density (g/mL): 2.1
Boiling Point (°C): 1310
Freezing Point (°C): 723
Solubility: Dilute Acid and Slightly in Water
Synonyms: Carbonic Acid Dilithium Salt
Shelf Life (months): 12
Storage: Green

CAS Number: 1393-92-6
Formula Weight: Approximately 3300
Solubility: Water
Synonyms: 7-Hydroxy-2-Phenoxazone
Shelf Life (months): 36
Storage: Green

CAS Number: 8023-70-9
Formula: Natural Product
Solubility: Insoluble in Water and Organic Solvents
Synonyms: Spores of Lycopodium Clavatum
Shelf Life: 36 Months

CAS Number: 9001-63-2
Formula: Complex Enzyme
Boiling Point (°C): Decomposes
Freezing Point (°C): stable <55
Synonyms: Globulin G, Muramidase
Shelf Life (months): 36
Storage: Green

Shelf Life (months): 36
Storage: Green

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

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.

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