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A variety of seals for the protection of lab samples from contamination are available at VWR. Secure microplate samples with films, foils, and sealing tapes; select products appropriate for ELISA, PCR, cold storage, and general incubation. Sealing mats minimize evaporation and eliminate cross-contamination. For beakers, flasks, petri dishes and other labware, choose sealing films that are heat or chemical resistant. Insure sample integrity with security seals that provide evidence of tampering. Mechanical seals are also offered.

A variety of seals for the protection of lab samples from contamination are available at VWR. Secure microplate samples with films, foils, and sealing tapes; select products appropriate for ELISA, PCR, cold storage, and general incubation. Sealing mats minimize evaporation and eliminate cross-contamination. For beakers, flasks, petri dishes and other labware, choose sealing films that are heat or chemical resistant. Insure sample integrity with security seals that provide evidence of tampering. Mechanical seals are also offered.


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Image Unavailable-CA1.01963.0025

L(+)-Potassium hydrogen tartrate, Certipur® certified secondary standard reference material for pH measurement, directly traceable to primary reference material (SRM) from NIST/PTB, Supelco®

Description: Certipur grade, certified secondary standard reference material for pH measurement; directly traceable to primary SRM from NIST/PTB, C4H5KO6, Cas no 868-14-4.
Catalog Number: CA1.01963.0025
Supplier: MilliporeSigma

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Product Image-RCRV010075500N

VeriSpec™ Potassium (K) Standard for AAS 1000 ppm in 2% HNO₃, RICCA Chemical Company

Description: Certified reference material (CRM) for AA (atomic absorption)
Catalog Number: RCRV010075500N
Supplier: Ricca Chemical

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Image Unavailable-CAAAAA15736-22

Potassium hexacyanoferrate(II) trihydrate 98+%

Description: Potassium hexacyanoferrate(II) trihydrate 98+%
Catalog Number: CAAAAA15736-22
Supplier: Thermo Scientific Chemicals

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Product Image-RC65054

Potassium Standard, 1 ml = 10 mg K, 10,000 ppm K, Ricca Chemical Company

Description: 1 mL = 10 mg K, 10,000 ppm K. (KCl in Water). Container: Plastic.
Catalog Number: RC65054
Supplier: Ricca Chemical

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Product Image-RC649516

Potassium Standard, 1 ml = 0.01 mg K, 10 ppm K, Ricca Chemical Company

Description: 1 mL = 0.01 mg K, 10 ppm K. (KCl in Water) Meets ACS APHA Specifications. Container: Plastic.
Catalog Number: RC649516
Supplier: Ricca Chemical

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Image Unavailable-CAAA22898-18

Potassium molybdate(VI), anhydrous ≥99.8% (metals basis)

Description: MDL: MFCD00011370
Catalog Number: CAAA22898-18
Supplier: Thermo Scientific Chemicals

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Image Unavailable-CAAA23126-30

Potassium hexacyanocobaltate(III) ≥90%

Description: Soluble in water and acetic acid solutions. Insoluble in alcohol
Catalog Number: CAAA23126-30
Supplier: Thermo Scientific Chemicals

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Image Unavailable-CAAAA14933-0B

Potassium tetraoxalate dihydrate 98+%

Description: Applications: Metal polishing determination of pH
Catalog Number: CAAAA14933-0B
Supplier: Thermo Scientific Chemicals

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Product Image-RCRV010937100N

VeriSpec™ Potassium - K⁺ Standard for Ion Chromatography 1000 ppm in H₂O, RICCA Chemical Company

Description: Certified reference material (CRM) for ion chromatography (IC)
Catalog Number: RCRV010937100N
Supplier: Ricca Chemical

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Product Image-CAMK774606

Potassium dihydrogen phosphate 98.0-100.5% (dried basis, RT), crystals, GenAR® NF, Macron Fine Chemicals™

Description: Crystals.
Catalog Number: CAMK774606
Supplier: AVANTOR PERFORMANCE MATERIAL LLC

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Product Image-RCMSK1KN-100

Potassium ICP-MS Standards, RICCA Chemical Company

Description: 1000ppm K. Inductively coupled plasma (ICP) mass spectometry (MS) standard. Specialized ICP standard used to provide very high level sensitivity in analyses, typically parts per billion (ppb) and parts per trillion (ppt). 100mL.
Catalog Number: RCMSK1KN-100
Supplier: Ricca Chemical

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Image Unavailable-CAAAAL15111-AK

Potassium-tert-pentyloxide 25% (w/w) in toluene

Description: Fieser: 1,939 9,379
Catalog Number: CAAAAL15111-AK
Supplier: Thermo Scientific Chemicals

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Image Unavailable-CAAA10538-06

Potassium tetranitroplatinate(II) Pt ≥ 42,6%

Description: MDL: MFCD00011375
Catalog Number: CAAA10538-06
Supplier: Thermo Scientific Chemicals

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Image Unavailable-CAAA12642-06

Potassium hexaiodoplatinate(IV) Pt ≥ 18,2%

Description: MDL: MFCD00049660
Catalog Number: CAAA12642-06
Supplier: Thermo Scientific Chemicals

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Image Unavailable-CAAA33357-36

Potassium hexacyanoferrate(III) ≥99.0% ACS

Description: MDL: MFCD00011392 Fieser: 1,929 2,345 4,406 5,554 6,480 7,300 8,410 9,385 13,255
Catalog Number: CAAA33357-36
Supplier: Thermo Scientific Chemicals

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Image Unavailable-TCT0036-025G

Tetrabromofluorescein potassium salt ≥85.0% (by HPLC)

Description: CAS Number: 56897-54-2
MDL Number: MFCD00070510
Molecular Formula: C20H8Br4O5
Molecular Weight: 724.08
Purity/Analysis Method: >85.0% (HPLC)
Form: Crystal
Color: Yellow Red
Catalog Number: TCT0036-025G
Supplier: TCI America

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