glow in the dark photoluminescent luminous selfglow exit signs with Chinese words and English words glow color like the second pic you should put it under the sun or light firstly , then glow in the dark quantity:1pcsglow color: yellowgreen
Copper(II) acetate, also referred to as cupric acetate, is the chemical compound with the formula Cu(OAc)2 where OAc- is acetate (CH3CO2-). The hydrated derivative, which contains one molecule of water for each Cu atom, is available commercially. Anhydrous Cu(OAc)2 is a dark green
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