| Brand | Porter |
|---|---|
| Year | 1950 |
| Age Level | 12-16 Years, 17 Years & Up |
| Character Family | Chemcraft |
Check the listing for details. ChemCraft Replacement No. 32 Congo Red Indicator Envelope, Porter Chemical 1950s. Condition: Used. Listed at 9.99 USD. The ChemCraft Replacement No. 32 Congo Red Indicator Envelope from Porter Chemical in the 1950s is a vintage educational toy designed for young chemists. This envelope, part of the Chemcraft character family, contains a Congo Red indicator that changes colors in response to chemical reactions. Suitable for children aged 12 and up, this product provides a fun and interactive way for kids to explore the world of science and nature through hands-on experimentation.
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