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Luciteria

Neptunium

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Product Description

Neptunium for sale? The short answer: yes.

Now the long answer. The neptunium sample sold here is not pure. It sits on a strip of gold-plated silver which is alloyed with americium-241. The neptunium accumulates on this trip at the expense of its parent Am241 which naturally decays into Np237.

With a half-life of 432 years, this means that each year some 0.23% of its mass is converted into neptunium. Since neptunium's own half-life is measured in the millions of years this means almost all of it is staying put and growing at the rate of tens of thousands of atoms each passing day with only a negligible loss (to protactinium).

We can additionally calculate that since the source of this strip was manufactured in the 1960s this would put it at, roughly, .23 x 50 = 11.5% of the original 80μci, or approximately 2mcg. Not bad a all!

Product Details
  • Measurements
    2"L x 2"W x 2"H
  • OriginUnited States

— Small, Highly Pure Element Sample Embedded In An Acrylic Lucite Cube
— Cube Is 2" Thick And Durable For Safe Handling And Easy Display
— Surface Clarity That Won't Fade, Yellow, Or Fog Over Time

Shipping Information
  • Shipping Availability
    Canada, United States
  • Shipping Policy
    Standard Ground Shipping
  • Ship In
    3-4 weeks ⓘ
  • Return Policy
    Final sale, not eligible for return or cancellation
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