"safety"

Polycarbonate plastic tank is idea for insect habitats, aquariums, terrariums, and plant growth.

Speakman® Laboratory products are designed to accommodate the needs of laboratories by offering a number of configurations to ensure the perfect fit for virtually any application.

This versatile modular unit looks attractive standing alone on the floor, a table-top, or against a wall, then stack together in precise alignment as display needs grow.

Heavy-duty rim flasks are especially recommended for use as titration flasks.

Project a straight line for mirrors and lenses.

Simple, Student-Directed Science Activity

Hands-on STEM learning kit for launching rockets using a simple chemical reaction.

CAS Number: Mixture
Formula: Mixture
Density: 0.794 g/mL
Boiling and Freezing Point: 78°C, -114°C
Solubility: Miscible with Water and Organic Solvents
Synonyms: Denatured Alcohol, Ethyl Alcohol Anhydrous, Ethanol
Shelf Life: 36 Months

CAS Number: 9001-30-7
Formula Weight: Mixture
Formula: Natural Product
Density (g/mL): 0.922-0.926
Boiling Point (°C): >232
Freezing Point (°C): 21-25
Solubility: Organic Solvents
Synonyms: Maize Oil, Mazola
Shelf Life (months): 36
Storage: Green

CAS Number: 5144-89-8
Formula Weight: 198.22
Formula: C₁₂H₈N₂.H₂O
Hazard Info: Toxic
Freezing Point (°C): 98-100
Solubility: Water and Alcohol
Synonyms: o-Phenanthroline
Shelf Life (months): 36
Storage: Blue

CAS Number: 7783-28-0
Formula Weight: 132.06
Formula: (NH₄)₂HPO₄
Density (g/mL): 1.619
Solubility: Water
Synonyms: Diammonium Phosphate, Diammonium Hydrogen Phosphate
Shelf Life (months): 36
Storage: Green

CAS Number: 7446-20-0
Formula Weight: 287.54
Formula: ZnSO₄·7H₂O
Hazard Info: Irritant
Density (g/mL): 1.97
Freezing Point (°C): 100
Solubility: Water
Shelf Life (months): 12
Storage: Green

CAS Number: 1317-65-3
Formula Weight: 100.09
Formula: CaCO₃
Density (g/mL): 2.85
Synonyms: Calcium Carbonate, Marble Chips, Marble Rocks, Limestone Chips
Shelf Life (months): Indefinite
Storage: Green

CAS Number: 10101-41-4
Formula Weight: 172.10
Formula: CaSO₄·2H₂O
Density (g/mL): 2.32
Freezing Point (°C): 128
Solubility: Water
Synonyms: Calcium Sulfate 2-Hydrate
Shelf Life (months): 36
Storage: Green

CAS Number: Mixture
Formula Weight: Mixture
Formula: Mixture
Hazard Info: Caustic, Corrosive
Density (g/mL): Approximately 1.1
Boiling Point (°C): Approximately 100
Freezing Point (°C): Approximately 0
Synonyms: Fehling's Alkaline Tartrate Solution
Shelf Life (months): 36
Storage: White

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