"water+bath"

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: 108-95-2
Formula Weight: Mixture
Formula: Mixture
Hazard Info: Toxic, Irritant (absorption and inhalation)
Density (g/mL): 1.05
Boiling Point (°C): 181
Freezing Point (°C): 5-17
Solubility: Water and Organic Solvents
Shelf Life (months): 12
Storage: Blue

CAS Number: 7757-82-6
Formula Weight: 142.04
Formula: Na₂SO₄
Density (g/mL): 2.698
Boiling Point (°C): >1000
Freezing Point (°C): 888
Solubility: Water
Synonyms: Disodium Sulfate
Shelf Life (months): 36
Storage: Green

CAS Number: 7758-09-0
Formula Weight: 85.11
Formula: KNO2
Hazard Info: Oxidizer, Flammable, Irritant
Density (g/mL): 1.915
Boiling Point (°C): Explodes at 538
Solubility: Water
Synonyms: Nitrous Acid, Potassium Salt
Shelf Life (months): 36
Storage: Yellow

CAS Number: 57-55-6
Formula Weight: 76.10
Formula: CH3CH(OH)CH2OH
Density (g/mL): 1.038
Boiling Point (°C): 187
Freezing Point (°C): -59
Solubility: Miscible with Water and Organic Solvents
Synonyms: 1,2-Propanediol
Shelf Life (months): 36
Storage: Green

Nitrite Instrumental Test 0 to 0.750 ppm

CAS Number: 7727-54-0
Formula Weight: 228.20
Formula: (NH₄)₂S₂O₈
Hazard Info: Oxidizer, Reactive
Density (g/mL): 1.92
Solubility: Water
Synonyms: Ammonium Peroxydisulfate, Diammonium Peroxydisulfate
Shelf Life (months): 36
Storage: Yellow

CAS Number: 5329-14-6
Formula Weight: 97.09
Formula: H₃NO₃S
Hazard Info: Toxic
Density (g/mL): 2.15
Freezing Point (°C): 205
Solubility: Water, Alcohol and Acetone
Synonyms: Sulfamidic Acid, Aminosulfonic acid
Shelf Life (months): 36
Storage: White

Obtain fast and accurate humidity readings anywhere by comparing the reading of the wet and dry bulb thermometers on the enclosed humidity chart. Eliminates the hazard of splattering mercury by using a safe and easy to read red liquid. The thermometers are recessed into a protective plastic mounting. The mounting also contains a water reservoir eliminating the need to constantly rewet the wick.

CHEMets® Chlorine Visual HR Test 0 to 125 ppm

CHEMets® Nitrite Visual Test Kit

CAS Number: Mixture
Formula Weight: Mixture
Formula: Mixture
Hazard Info: Flammable, Toxic
Density (g/mL): 0.7919-0.7955
Boiling Point (°C): 74-80
Freezing Point (°C): -114
Solubility: Water
Shelf Life (months): 12
Storage: Red

CAS Number: 110-16-7
Formula Weight: 116.08
Formula: HOCOCH:CHCOOH
Hazard Info: Toxic
Density (g/mL): 1.59
Boiling Point (°C): Decomposes
Freezing Point (°C): 132
Solubility: Water, Alcohol and Acetone
Synonyms: cis-Butenedioic Acid
Shelf Life (months): 36
Storage: White

CAS Number: 119-36-8
Formula Weight: 152.15
Formula: HOC6H4COOCH3
Hazard Info: Toxic
Density (g/mL): 1.18
Boiling Point (°C): 219-224
Freezing Point (°C): -8.6
Solubility: Slightly in Water and Alcohol
Synonyms: Synthetic Oil of Wintergreen
Shelf Life (months): 36
Storage: Green

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: 10025-69-1
Formula Weight: 225.63
Formula: SnCl₂·2H₂O
Density (g/mL): 2.71
Freezing Point (°C): 38
Solubility: Water, Alkalies, Tartaric Acid and Alcohol
Synonyms: Stannous Chloride, Dihydrate
Shelf Life (months): 12
Storage: White