"AP BIOLOGY&pageNo=130"
Potassium Sodium Tartrate
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
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VWR® Standard Series Freestanding Undercounter Refrigerator
These undercounter laboratory refrigerators and freezers provide versatile cold storage in a space-saving design.
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Mortar and Pestle Set, Porcelain, United Scientific Supplies
Deep form mortar with oversized pestle.
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Sodium Perborate Tetrahydrate
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.
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REUZ™ Stainless Steel Beakers
Seamless and sanitary stainless steel beakers.
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Stem Explorations, Levers and Pulleys Building Set
Explore STEM concepts while building lever and pulley models!
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Eisco LabGlass™ Low Form Glass Beakers
High quality borosilicate 3.3 glass beakers with a spout for easy pouring. Designed for general use in a wide variety of laboratories.
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Explorer® Precision Balances, Ohaus®
Precision balances provide accurate results in seconds to improve efficiency and productivity
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Stem Explorations, Vehicles Building Set
Explore STEM concepts while building different vehicle models!
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Digital Temperature Controlled Solder Station
Professional Soldering Station 48W (160-480 C or 320-900 F) with a 42 inch long cable.
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Eisco® Human Urinary System Model, 3 Parts
Life size model demonstrates the organs of the human urinary system.
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WypAll® X60 Wipers
WypAll® X60 cloths are absorbent, lightweight, and reinforced to stay strong in light-duty cleaning tasks.
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3 Wire Sonometer
This 3-Wire Sonometer is a perfect way to illustrate the resonance of a wire based on tension and wire diameter.
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CENCO® Spectrometer Prisms
Spectrometer prisms offer a different index of refraction for every need.
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Mini Vortex Mixers with Touch Function
A simple, touch start operation enables exceptional mixing performance with one handed operation.
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Chromatography Paper
Quality paper for general chromatography and electrophoresis.




