One Round Bottom Reaction Pin. Organic Chemistry Laboratory Series. Metallic pin that changes color from orange to purple when cooled to 0 degrees Celcius.
Craft: Hard Enamel
Material: Zinc Alloy, Gold Plating
Dimension: 2.85 x 2.0 cm
Attachment: 1 Rubber Clutch
Thermochromic material degrades over time when exposed to light.
Reaction Badge Pin - Metallic Hard Enamel
Round Bottom Reaction Pin. Material is hard enamel on zinc alloy (gold plating) metal with a black rubber pin back. The material contains a thermochromic compound.
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