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"Ward's® Thermochemistry In The Bag Inquiry Demonstration Activities"

6549  Résultats
 
PLANE MIRRORS GLASS- 150X100MM

PLANE MIRRORS GLASS- 150X100MM

PLANE MIRRORS GLASS- 150X100MM

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TUNING FORK SET - ALUMINIUM

TUNING FORK SET - ALUMINIUM

TUNING FORK SET - ALUMINIUM

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GLASS EQUILATERAL PRISM - 50MM

GLASS EQUILATERAL PRISM - 50MM

GLASS EQUILATERAL PRISM - 50MM

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TUNING FORKS - ALUMINUM 512HZ

TUNING FORKS - ALUMINUM 512HZ

TUNING FORKS - ALUMINUM 512HZ

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HOLLOW GLASS SLAB 75X50X18MM

HOLLOW GLASS SLAB 75X50X18MM

HOLLOW GLASS SLAB 75X50X18MM

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FABRIC 100% NYLON WHITE 18 X 22

FABRIC 100% NYLON WHITE 18 X 22

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PLANE MIRRORS GLASS- 100X75 MM

PLANE MIRRORS GLASS- 100X75 MM

PLANE MIRRORS GLASS- 100X75 MM

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PLASTIC MIRRORS 100 X 150 MM

PLASTIC MIRRORS 100 X 150 MM

 

PLASTIC MIRRORS 100 X 150 MM

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HYSTRICULINA WAHASHENSIS (PENN) KANSAS

HYSTRICULINA WAHASHENSIS (PENN) KANSAS

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CLOTH LINEN WHITE 11 X 9

CLOTH LINEN WHITE 11 X 9

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CHEMets® Peracetic Acid Visual Test Kit

CHEMets® Peracetic Acid Visual Test Kit

Test method: The Peracetic Acid CHEMets® test kit (0 to 1 and 0 to 5 ppm) employs the DPD chemistry. The sample is treated with an excess of potassium iodide. Peracetic acid oxidizes the iodide to iodine. The iodine then oxidizes DPD (N,N-diethyl-p-phenylenediamine) to form a pink colored species in direct proportion to the peracetic acid concentration. Various oxidizing agents such as halogens, ferric ions and cupric ions will produce high test results. Hydrogen peroxide does not interfere with this test if present at levels comparable to the peracetic acid levels.

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TUNING FORK SET - STEEL

TUNING FORK SET - STEEL

TUNING FORK SET - STEEL

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RIGHT ANGLE REFRACTION PRISM

RIGHT ANGLE REFRACTION PRISM

RIGHT ANGLE REFRACTION PRISM

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ALUMINUM TUNING FORK; 128 HZ

ALUMINUM TUNING FORK; 128 HZ

ALUMINUM TUNING FORK; 128 HZ

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PLANE MIRRORS GLASS- 150X50 MM

PLANE MIRRORS GLASS- 150X50 MM

PLANE MIRRORS GLASS- 150X50 MM

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PLANE MIRRORS GLASS- 75X25 MM

PLANE MIRRORS GLASS- 75X25 MM

PLANE MIRRORS GLASS- 75X25 MM

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