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Ward's® Acetic Anhydride
CAS Number: 108-24-7
Formula Weight: 102.09
Formula: C4H6O3
Hazard Info: Irritant, Corrosive, Flammable
Density (g/mL): 1.08
Boiling Point (°C): 139.9
Freezing Point (°C): -73
Solubility: Reacts with Water and Alcohol
Synonyms: Acetic Oxide, Acetyl Oxide, Ethanoic Anhydride, Acetic Acid Anhydride
Shelf Life (months): 36
Storage: White
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Mixed Marine Diatoms and Dinoflagellates
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, Cyclotella and Thalassiosira.
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Carbon Dioxide (Dissolved), Titrets Titration Cells, CHEMetrics
Titrets® test kits use reverse titration to quantify concentrations in aqueous samples
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Freshwater Planktonic Debris
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: Pond scum.
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Ammonium Dichromate
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
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Chlorine Colorimeter, DC155-CL, LaMotte®
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.
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Alizarin Yellow R
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
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1,6-Hexanediamine
CAS Number: 124-09-4
Formula Weight: 116.21
Formula: 1,6-NH2(CH2)6NH2
Hazard Info: Corrosive
Density (g/mL): 0.854
Boiling Point (°C): 205
Freezing Point (°C): 39-42
Solubility: Water and Slightly in Alcohol
Synonyms: Hexamethyleneediamine, 1,6-Diaminohexane
Shelf Life (months): 36
Storage: White
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Mixed Marine Algae
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.
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Volvocales
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.
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Green Protists
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, Closterium, Pandorina, Peridinium, Spirogyra, Synedra, and Volvox.
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Purple Pitcher Plant
Sarracenia purpurea var. Dicot. This plant’s unusual hollow, red-and-green pitcher-shaped leaves are used to trap insects for the plant’s food. The leaves hold water in which trapped insects drown and decompose; the leaves absorb the nutrients from the decomposed insects. It is native to acidic bogs in temperate regions, although some species are found in tropical areas. It prefers acidic conditions in terrariums and comes supplied in a pot with care instructions. Size: 4–6".
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Hardness (Total), Titrets Titration Cells, CHEMetrics
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).
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Hanna Instruments Free Chlorine Test Kit, Extended Range
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.
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Portable pH/EC/DO Meter with Bluetooth HI98494
Functional and accurate, this meter is capable of testing 12 different water quality parameters using pH, EC, and optical DO sensors. Transfer data to a smart device for review or sharing with the integrated Bluetooth connection and Hanna Lab App.

