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

6549  Résultats
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SET OF 7 ACRYLIC BLOCKS - 25MM

SET OF 7 ACRYLIC BLOCKS - 25MM

SET OF 7 ACRYLIC BLOCKS - 25MM

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HUMUS LB

HUMUS LB

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TICKER TAPE ROLL HOLDER FOR PH0353 TIMER

TICKER TAPE ROLL HOLDER FOR PH0353 TIMER

TICKER TAPE ROLL HOLDER FOR PH0353 TIMER

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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

Liquidation

PLASTIC MIRRORS 100 X 150 MM

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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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HOLLOW GLASS PRISMS 38X38 MM

HOLLOW GLASS PRISMS 38X38 MM

HOLLOW GLASS PRISMS 38X38 MM

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18CM NEWTON COLOR DISC CARD

18CM NEWTON COLOR DISC CARD

18CM NEWTON COLOR DISC CARD

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SHEET PLASTIC 36X36IN 69050

SHEET PLASTIC 36X36IN 69050

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TABLECLOTH DARK COLORED VINYL

TABLECLOTH DARK COLORED VINYL

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CLOTH ACRYLIC WHITE 11 X 9

CLOTH ACRYLIC WHITE 11 X 9

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TUNING FORK RESONANT SET2 STEEL 440HZ RD

TUNING FORK RESONANT SET2 STEEL 440HZ RD

TUNING FORK RESONANT SET2 STEEL 440HZ RD

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METAL MAGNETIC NEEDLE STAND

METAL MAGNETIC NEEDLE STAND

METAL MAGNETIC NEEDLE STAND

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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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