K-6703 Molybdate

K-6703 Molybdate Vacu-Vials Kit is used to determine Molybdate levels from 0-25.0 ppm.

Molybdate Information

This kit requires the use of a CHEMetrics Direct-Readout Photometer or a spectrophotometer capable of accepting a 13 mm diameter round cell. Instrument sold separately.

$32.00

Why Choose Vacu-vials?

CHEMetrics Vacu-vials self-filling ampoules are a great way to test for dissolved substances in liquid. Unlike our visual test kits, the Vacu-vials test kit allows you to obtain an instrumental result using the CHEMetrics Direct-Redout Photometers or any spectrophotometer capable of accepting a 13m diameter round cell. When using equipment from another manufacturer, set the spectrophotometer to absorbance mode, select the wavelength specified by the Vacu-vials kit instructions, and follow the test procedure. The K-6703 Molybdate Kit was designed to accurately measure the levels of molybdate in water from 0-25.0 ppm.

Safe and Reliable Results

While traditional methods often require multiple steps and thorough preparation, these test kits allow you to obtain dependable results with a few simple steps. By simplifying the testing method, Vacuvials test kits reduce the potential for operator error. Additionally, each of the ampoules contained in the test kits is vacuum sealed which helps eliminate the problem of obtaining inaccurate results from stale or unstable reagents. These reagents are stored right in the tip of each ampoule and sealed in glass, thereby minimizing direct contact with the chemicals.

What's included:

  • 30 self-filling Ampoules
  • 25 mL Sample Cup
  • Ampoule Blank
  • Instruction Manual

Method

K-6703 uses the Catechol Method. The molybdate test method employs catechol chemistry. In a mildly reducing alkaline solution, catechol reacts with hexavalent molybdenum to form a yellow-orange colored chelate in direct proportion to the hexavalent molybdenum concentration. Test results are expressed in ppm (mg/L) molybdenum (Mo). 

Molybdate is used throughout the industrial water treatment and power generation industries as a corrosion inhibitor in both open- and closed-loop cooling water systems. In solution, molybdate anions complex with oxidized iron to form a protective film of molybdate and ferric-oxide. Molybdate is considered an effective, environmentally acceptable alternative to chromate treatment. Unlike many other transition elements, molybdenum exhibits low or even negligible toxicity.

How to use:

1. Fill the sample cup to the 25 mL mark with the sample to be tested. 2. Place the Vacu-vial ampoule tip-first into the sample cup. Snap the tip and the ampoule will automatically fill.
3.To mix the ampoule, tilt it from side to side, allowing the bubble to travel from end to end. 4. Dry the ampoule
5. Wait 1 minute for color development. 6. Insert the Vacu-vial ampoule into the photometer, flat end first, and obtain a reading in ppm.

P6510

WARNING! This product can expose you to chemicals including catechol, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

 

More CHEMetrics Kits for Molybdate

Chemets Kits
Product Number Method MDS Range Price
K6701 Catechol 0.5 ppm 0-7 ppm as Mo $47.00
K6702 Catechol 2 ppm 2-24 ppm as Mo $56.00
K6720 Catechol 20 ppm 20-200 ppm as Mo $56.00

 

Downloads:

K-6703 Instructions

Catechol Tech Sheet

Molybdate Information

More Information
Manufacturer CHEMetrics
Call For Price No
Gas Molybdate
4-20 mA Output No
Voltage Output None
Power Requirements 4 AAA Batteries
Datalogging No
Warranty 1 Year
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