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Calcium Hardness Test Kits (Murexide)

Calcium Hardness Test Kits (Murexide)

Our Price: $74.24

Availability: Usually Ships in 24 Hours

Product Code: m8577a


Calcium Hardness Test Kits

Calcium Hardness Test Kits (Murexide) comes in 1 drop = 2, 5,10, 20, 25, and 50 ppm.

  1. Fill mixing bottle with water sample to 25 ml mark.
  2. Add 1 scoop of Calcium Indicator Powder and swirl to mix.
  3. Add 6 drops of Cacium Buffer Solution and swirl.
  4. If the water turns Blue, no Calcium is present and report as 0 ppm.
  5. If the water turns Purple or Red, hardness is present.
  6. Add titrating solution, drop by drop, swirling the vial until the solution turns Blue.
  7. The calcium hardness is the number of drops times the factor of the test.
One gallon containers of Boiler Antifreeze are Stocked & Shipped daily from Atlanta, Georgia; Detroit, Michigan; and Salt Lake City, Utah.

Daily shipping cut off time is generally 1 pm, based on the local time zone for same day shipping. If you need this product to ship today, please indicate so in the notes section upon check out. We will email mail you ASAP if we can meet your demands.

Figure 1- Fedex Residential and Ground
Transit Time Map

  • We only ship via FedEx ground. No UPS or USPS.
  • We can not ship to PO boxes.
  • This map illustrates service schedules in business days as of Dec 2016 for FedEx Ground shipments.
  • ChemWorld is not responsible for delays due to weather or Fedex transit issues. Please take this into account when ordering.
Overnight / Expedite Shipping:
  • Orders must be received by noon.
  • We only ship FedEx expedite shipments. No UPS or USPS.
  • To calculate your costs, log into your FedEx Account. Origin zip code is 30144, 48180, or 84119.
Directions for Overnight Shipping:
  • Order must be placed by noon.
  • Order as normal through the website.
  • If you have a FedEx Account number, enter it in the notes section during ordering with your exact shipping requirements (Next Day 8:30, Next Day 10:30, Next Day 20:00, Fedex 2 AM, or FedEx Express Saver). You are done. We will email you ASAP.
  • If you do NOT have a FedEx Account number, we offer overnight delivery for this product. The cost is $60 for Next Day 10:30 AM per 1-gallon box. Enter your order as normal and enter your 3 or 4 digit security code in the notes section with your shipping requirements. You are done. We will email you ASAP.

If it is later then noon, email us at with your request. We will contact you ASAP. You can also call in the order at 800-658-7716 and reference exactly what you need. We will contact you.