Skip to product information
1 of 10

Lead Test Swabs, 10pk

Lead Test Swabs, 10pk

2 total reviews

    Item #330


    Repurposing vintage items is great, but these items can contain harmful levels of lead, the hazards of which were not as well known at the time. These test swabs can be used to detect the presence of lead on surfaces such as glassware, ceramics, or painted walls. The same test is used in forensic science to detect gunshot residue.

    The test is based on the chemical properties of sodium rhodizonate, which is stored in the swab’s tube along with an organic solvent to facilitate the reaction. The rhodizonate ions react with lead to produce a visible color change on the swab ranging from pink to purple. Higher concentrations of lead produce darker and quicker results, providing a semi-quantitative measure of lead presence. This chemical test is extremely sensitive, and can detect even minute concentrations of lead; however, these levels may take longer to react, up to two minutes.

    Procedure:

    1. Wearing gloves, unwrap a swab and hold it with the pink end pointed up.

    2. Snap the pink tip off, waiting a few seconds to allow the solution to flow to the white end and soak the swab tip.

    3. Rub the soaked tip against a surface and wait to observe a color change on the swab.

    4. Note your observations and dispose of the swab.



      Regular price $9.00
      Regular price $10.00 Sale price $9.00
      Sale Sold out
      Shipping calculated at checkout.
      Matter Subscriber Price:




      View full details

      AUTHENTICITY GUARANTEED

      We only list 100% verified authentic items. We work with reputable collectors, and regularly consult with our network of scientists and experts.

      • Free Shipping

        Orders ≥$50 qualify for free US shipping
        Orders ≥$100 qualify for free global shipping

      • Secure Payments

        Pay how you like: credit card, PayPal, After Pay, Shop Pay, Venmo, Apple/Google/Meta Pay & crypto

      • Simple Returns

        Change your mind? No problem. Enjoy easy returns within 30 days.

      Customer Reviews

      Based on 2 reviews
      100%
      (2)
      0%
      (0)
      0%
      (0)
      0%
      (0)
      0%
      (0)
      E
      E. (Oklahoma, United States)
      Great price for the product!

      I ordered the lead test swabs to check some old dishes I'd inherited. The directions were clear and easy to follow. They came individually wrapped in a cute package that protected them well. They were exactly what I needed at a good price.

      M
      M.R. (California, United States)
      pretty good

      These were useful for detecting led in solder.

      similar items_

      WE TAKE SCIENCE SERIOUSLY

      You deserve better than craft store science products. And we think learning is more impactful when you're holding a tangible piece of what you're learning about. That's why Stemcell exists.

      We're dedicated to providing the best scientific products available—whether they're fragments of scientific importance, experimental activities, or just interesting things that scratch your curiosity itch.

      With every new product launch, our list of new ideas gets longer rather than shorter. So check in often for our latest projects, and thanks for being a part of our endeavor to make the world a smarter place to live.

      Believe in yourself; for everything else, there's science.

      — TERRY MUDGE, FOUNDER & SCIENTIFIC DIRECTOR