Party candles burning with coloured flames. These are made by dissolving various metal salts in alcohol then mixing them with various chemicals such as ethylthiourea. A wax hardener is also added. When lit,the candle flame burns in the characteristic colour of the metal salt used | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 4217 px × 4217 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |