2642 Results for: "Potassium Dichromate ACS"

Supplier: VWR Chemicals

Potassium-sodium tartrate, alkaline solution

Supplier: VWR Chemicals

Potassium-sodium tartrate, alkaline solution

Supplier: VWR Chemicals

Dipotassium hydrogen orthophosphate trihydrate ≥99.0%, AnalaR NORMAPUR® analytical reagent

Supplier: Avantor

For determination of potassium.

Supplier: VWR Chemicals

Potassium iodo mercurate(II) reagent, solution B (sodium hydroxide 20% aqueous solution) Reag. Ph. Eur. 1071600 for determination of ammonia and ammonium salts

Supplier: VWR Chemicals

ネスラー試薬 for determination of ammonia and ammonium salts

Supplier: VWR Chemicals

Tripotassium orthophosphate, anhydrous, Reagent Grade

Supplier: MACRON AVANTOR BRAND

ネスラー試薬, StandARd® for ammonia nitrogen determination, Macron Fine Chemicals™

Supplier: VWR Chemicals

The isolation of microorganisms often requires the use of specific supplements. The supplements presented here are available in vials and bottles, and the corresponding culture medium to use with them is indicated in the table below. Usually each vial is used to supplement 500 ml of media unless otherwise stated (complete information available on the specification sheets available on request).

Supplier: VWR Chemicals

Tripotassium orthophosphate trihydrate ≥98.0%, AnalaR NORMAPUR®

Supplier: VWR Chemicals

Xylenol orange triturate 1% (w/w) in potassium nitrate Reag. Ph. Eur. 1096301

Supplier: VWR Chemicals

Potassium chloride 3 Molar solution may also be used as an electrode storage solution.

Supplier: VWR Chemicals

Indicator Papers, Starch potassium iodate paper Reag. Ph. Eur. 1085101

Supplier: VWR Chemicals

KCl 0,01 mol/L, VWR®, 1,41 mS/cm, Reference temperature: 25 °C

Supplier: MACRON AVANTOR BRAND

Contains 10 to 20% iodine and 20 to 30% potassium iodide.

Supplier: VWR Collection

Calomel-free pH electrode refill solution containing potassium nitrate , VWR®

Supplier: Avantor

DILUT-IT is a ready-to-use dissolution media concentrate, which is pre-measured and only need to be diluted with purified water.

Supplier: VWR Chemicals

Potassium hydrogen phthalate solutions.

Supplier: VWR Chemicals

The tightening of regulatory requirements and the increasing demands of QA/QC methodology is becoming more important across all market sectors. The demand for standards to support testing methods continues to increase, and this growth applies to water determination according to Karl Fischer. Avantor now offers a complete range of Karl Fischer water standards as CRMs to calibrate and monitor equipment and check test results.

Supplier: VWR Chemicals

Made of potassium bismuth iodide

Supplier: VWR Chemicals

Indicator Papers, Starch potassium iodide paper Reag. Ph. Eur. 1085106, Plastic bottle for solids

Supplier: VWR Chemicals

Stray light standards packed in permanently sealed UV cuvettes or 100 ml amber bottle.

Supplier: VWR Chemicals

6 components: Lithium (Li+) 50 mg/l, Sodium (Na+) 200 mg/l, Ammonium (NH4+) 250 mg/l, Potassium (K+) 500 mg/l, Calcium (Ca2+) 500 mg/l, Magnesium (Mg2+) 250 mg/l in H₂O

Supplier: VWR Chemicals

Starting materials:
Solution A. Copper sulfate R/ Water R
Solution B. anhydrous Sodium carbonate R / Potassium sodium tartrate R/ Sodium hydrogen carbonate R/ anhydrous Sodium sulfate R/ Water R

Supplier: VWR Chemicals

Directly traceable to NIST, tested and certified to ISO17025 and ISO 17034

Supplier: VWR Chemicals

Directly traceable to NIST, tested and certified to ISO17025.

Supplier: VWR Collection

Conductivity standard 10000 µS/cm (0,0765 mol/L; KCl), VWR®, 10 000 µS/cm, Reference temperature: 25 °C

Supplier: VWR Chemicals

137 mM sodium chloride, 2,7 mM potassium chloride, 12 mM phosphate buffer

Supplier: VWR Chemicals

Ready to use culture media for microbiological test requirements in the food industry, water, environmental control and in the pharmaceutical industry. The range is manufactured from high quality raw materials. All the culture media are manufactured using selected dehydrated bases, and comply with various standards. All media are produced using the latest technology and are subject to strict quality controls carried out by qualified microbiologists.

Supplier: VWR Chemicals

Bromocresol green ACS