"water+bath"

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of microlife, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, WARD’S has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample. Comes with a dichotomous key and either the Working with Algae or the Working with Protozoa manual. Supplied in a single jar.

Contents: Amphidinium, Coccolithophora, Dunaliella, Ectocarpus, and Prorocentrum.

The HI3831F is a chemical test kit that uses the DPD method to measure free chlorine. The HI3831F is supplied complete with all of the reagents and equipment necessary to perform approximately 50 tests.

CAS Number: 140-66-9
Formula Weight: 206.33
Formula: (CH₃)₃CCH₂(CH₃)₂C₆H₄OH
Hazard Info: Corrosive
Density (g/mL): 0.912
Boiling Point (°C): 221.2
Freezing Point (°C): 101.5
Solubility: Water and Alcohol
Synonyms: p-tert-Octylphenol, 4-(tert-octyl) Phenol
Shelf Life (months): 36
Storage: White

CAS Number: 7789-09-5
Formula Weight: 252.06
Formula: (NH₄)₂Cr₂O₇
Hazard Info: Oxidizer, Flammable, Toxic, Irritant
Density (g/mL): 2.15
Freezing Point (°C): 170
Solubility: Water and Alcohol
Synonyms: Ammonium Bichromate, Dichromic Acid Diammonium Salt, Diammonium Dichromate(VI)
Shelf Life (months): 12
Storage: Yellow

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of microlife, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, WARD’S has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample. Comes with a dichotomous key and either the Working with Algae or the Working with Protozoa manual. Supplied in a single jar.

Contents: Chlamydomonas, Eudorina, Euglena, Gonium, Pandorina, and Volvox.

The Lamotte Chlorine Colorimeter Kit, ideal for both field and lab use, covers the entire critical chlorine range of 0-4 ppm with an MDL of 0.03 ppm.

CAS Number: 1718-34-9
Formula Weight: 309.22
Formula: C₁₃H₈N₃O₅Na
Hazard Info: Irritant
Density (g/mL): >1
Boiling Point (°C): Decomposes
Freezing Point (°C): 250
Solubility: Many Organic Solvents, Hot Methyl Alcohol and Water
Synonyms: Mordant Yellow 3R, C.I. No. 14095
Shelf Life (months): 36
Storage: Green

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of microlife, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, WARD’S has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample. Comes with a dichotomous key and either the Working with Algae or the Working with Protozoa manual. Supplied in a single jar.

Our choice of three from the following: Actinosphaerium, Amoeba, Arcella, Centropyxis, and Difflugia.

CAS Number: 10486-00-7
Formula: NaBO3·4H2O
Hazard Info: Toxic if inhaled; oxidizer
Boiling Point (°C): 130-150°C
Freezing Point (°C): 63°C
Solubility: Moderately soluble in water
Shelf Life (months): 36
Storage: Yellow

Note: The chemical specifications for some of the products on this page may differ from the specirications listed above. For more information, consult the Safety Data Sheet or contact your Ward's representative.

The test kits utilize CHEMetrics Titrets® ampoules. Titrets ampoules use a reverse titration technique to measure analyte concentration levels (titrant volume inside the ampoule is fixed while the sample volume is varied).

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of microlife, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, WARD’S has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample. Comes with a dichotomous key and either the Working with Algae or the Working with Protozoa manual. Supplied in a single jar.

Contents: Carteria, Chlamydomonas, Eudorina, Gonium, Pandorina, and Volvox.

Ratiometric design in innovative, waterproof, handheld meters.

Use the PEM Electrolyzer to produce hydrogen and oxygen using only pure water and an external power source. Take your pick of power sources, all available from Horizon: small solar cell, wind turbines, fuel cells, mechanical hand cranks, or batteries. Using the high-tech proton exchange membrane, this tiny electrolyzer will produce hydrogen for use in any classroom or laboratory activities.

Aquaponics is growing rapidly as a hobby and as an industry as the farm-to-table trend continues to spread.

Precalibrated test tubes and labware give fast, accurate results on-site, in the classroom, or in the lab.

Specially Prepared “Real-Life” Combinations
The world is teeming with a wide variety of microlife, making studying samples of pond water complicated especially for the beginning student. To lessen the confusion, WARD’S has prepared different culture mixes that reflect protist combinations that occur in the real world, yet eliminates the hundreds of other life-forms found in a collected sample. Comes with a dichotomous key and either the Working with Algae or the Working with Protozoa manual. Supplied in a single jar.

Our choice of five from the following: Blepharisma, Colpidium, Euplotes, Paramecium aurelia, P. bursaria, P. caudatum, P. multimicronucleatum, Spirostomum, and Stentor.