"water+bath"

Well cap, 5 cm (2")

CAS Number: 6381-59-5
Formula Weight: 282.23
Formula: KNaC4H4O6·4H2O
Hazard Info: Oxidizer, Toxic
Density (g/mL): 2.065
Boiling Point (°C): 105-130
Freezing Point (°C): 36.4
Solubility: Water and Alcohol
Shelf Life (months): 36
Storage: Yellow

CAS Number: 10361-37-2
Formula Weight: 208.27
Formula: BaCl₂
Hazard Info: Toxic
Density (g/mL): 3.9
Boiling Point (°C): 1560
Freezing Point (°C): 963
Solubility: Water
Synonyms: Barium Dichloride
Shelf Life (months): 36
Storage: Blue

CAS Number: 4430-20-0
Formula: C₁₉H₁₂C_l2O₅S
Formula Weight: 423.27
Shelf Life (months): 36
Solubility: Water
Storage: Green

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

CAS Number: 10025-77-1
Formula Weight: 270.30
Formula: FeCl3·6H2O
Hazard Info: Irritant, Corrosive
Freezing Point (°C): 37
Solubility: Water and Common Organic Solvents
Synonyms: Ferric Chloride Hexahydrate, Iron(III) Chloride 6-Hydrate
Shelf Life (months): 12
Storage: White

Manganese Instrumental Test 0 to 30 ppm

The NED method is widely used in the quantitative analysis of nitrite and nitrate in water samples. NED readily undergoes a diazonium coupling reaction in the presence of nitrite to give a strongly colored pink azo compound. The intensity of the color is directly proportional to the concentration of nitrite in the sample. Due to the significant intensity of the developed color even at very low nitrite/nitrate concentrations, lower detection limits and measurement ranges are possible vs. chromotropic acid kits. In addition, the nitrate measurement uses only zinc which is less toxic than cadmium, making handling and disposal safer.

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: 7704-34-9
Formula Weight: 32.06
Formula: S
Hazard Info: Flammable
Density (g/mL): 2.04-2.07
Boiling Point (°C): 444
Freezing Point (°C): 116-121
Solubility: Alcohol, Organic Solvents, Not Soluble in Water
Synonyms: Sulfur Flour
Shelf Life (months): 36
Storage: Red

Historical Experiment

CAS Number: 7664-38-2
Formula Weight: 98.00
Formula: H3PO4
Hazard Info: Corrosive, Toxic, Irritant
Density (g/mL): >1.573
Boiling Point (°C): 135-158
Freezing Point (°C): -17-21
Solubility: Water and Alcohol
Synonyms: ortho-Phosphoric Acid
Shelf Life (months): 36
Storage: White

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

CHEMets® Iron Total Soluble HR Visual Test Kit 250 to 2500 ppm

CHEMets® Chlorine Visual HR Test 0 to 25 ppm

CAS Number: 107-21-1
Formula Weight: 62.07
Formula: HOCH2CH2OH
Hazard Info: Toxic
Density (g/mL): 1.1135
Boiling Point (°C): 198
Freezing Point (°C): -13
Solubility: Water, Alcohol and Acetone
Synonyms: 1,2-Ethanediol
Shelf Life (months): 12
Storage: Green

Bring a pond inside your classroom. This comprehensive collection features a variety of organisms commonly found in a freshwater pond. Using the variety of specimens in this single jar, your students can discover the fascinating diversity of life that exists in a typical small body of water.
Includes algae, Protozoa, Hydra, Planaria, Daphnia and other common organisms.