"Ward's Science"

CAS Number: 5970-47-8
Formula Weight: 548.96
Formula: [ZnCO₃]₂ [Zn(OH₂]₃
Density (g/mL): 3.5
Solubility: Slightly soluble in water
Shelf Life (months): 36
Storage: Green

This demonstration is a safer way to show the reaction between water and alkali metals.

CAS Number: 1314-13-2
Formula Weight: 81.39
Formula: ZnO
Hazard Info: Toxic (fumes)
Density (g/mL): 5.1
Freezing Point (°C): 1975
Solubility: Acids and Alkalies
Shelf Life (months): 36
Storage: Green

CAS Number: 7446-19-7
Formula Weight: 179.45
Formula: ZnSO₄·H₂O
Hazard Info: Irritant
Density (g/mL): 3.35
Solubility: Water
Shelf Life (months): 12
Storage: Green

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: 7789-12-0
Formula Weight: 298.05
Formula: Na2Cr2O7·2H2O
Hazard Info: Toxic, Corrosive
Density (g/mL): 2.348
Solubility: Water
Synonyms: Sodium Bichromate
Shelf Life (months): 12
Storage: Blue

CAS Number: 7775-14-6
Formula Weight: 174.11
Formula: Na2O4O2
Density (g/mL): 2.500
Freezing Point (°C): 300
Solubility: Water
Synonyms: Sodium Hydrosulfite
Shelf Life (months): 12
Storage: Red

CAS Number: 7681-55-2
Formula Weight: 197.90
Formula: NaIO3
Density (g/mL): 4.277
Solubility: Water, Acetone
Synonyms: Iodic Acid Sodium Salt
Shelf Life (months): 12
Storage: Yellow

CAS Number: 7681-57-4
Formula Weight: 190.10
Formula: Na2S2O5
Density (g/mL): 1.33
Boiling Point (°C): 104
Solubility: Water and Alcohol
Synonyms: Sodium Pyrosulfite Anhydrous
Shelf Life (months): 12
Storage: Green

CAS Number: 7632-00-0
Formula Weight: 69.00
Formula: NaNO2
Hazard Info: Oxidizer, Flammable, Explosive, Toxic
Density (g/mL): 2.17
Freezing Point (°C): 270
Solubility: Water and Alcohol
Synonyms: Nitrous Acid Sodium Salt
Shelf Life (months): 36
Storage: Yellow

CAS Number: 62-76-0
Formula Weight: 134.00
Formula: (COONa)2
Hazard Info: Toxic
Density (g/mL): 2.34
Freezing Point (°C): 250-270
Synonyms: Ethanedioic Acid Disodium Salt
Shelf Life (months): 12
Storage: White

CAS Number: 7782-85-6
Formula Weight: 268.07
Formula: Na₂HPO₄·7H₂O
Density (g/mL): 1.68
Solubility: Hot Water
Synonyms: Disodium Phosphate 7-Hydrate
Shelf Life (months): 12
Storage: Green

CAS Number: 7558-79-4
Formula Weight: 141.96
Formula: Na2HPO4
Density (g/mL): 1.52
Solubility: Hot Water
Synonyms: Disodium Hydrogen Phosphate
Shelf Life (months): 12
Storage: Green

CAS Number: Mixture
Formula: Mixture
Density: Approximately 1 g/mL
Boiling Point: Approximately 100°C
Freezing Point: Approximately 0°C
Synonyms: Isotonic Saline Solution
Shelf Life: 24 Months

Be prepared for spills in your lab.

Determine the Amount of Nitrogen in Water Samples.