Химия природных соединений

Volodymyr · **Posted:** 04 Mar 2024 20:41

Horse chestnut bark, ethanol, water and iron (III) chloride
http://chemistry-chemists.com/N1_2024/C ... -P6-3.html

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Volodymyr · **Posted:** 06 Mar 2024 14:58

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radical · **Joined:** 15 Oct 2011 22:39 **Posts:** 6688

Сорти картоплі Хортиця і Солоха, виведені в Інституті картоплярства НАН України

Volodymyr5 · **Posted:** 23 Apr 2024 11:37

Red tulip, ammonia and acetic acid - part 5
http://chemistry-chemists.com/N2_2024/C ... -P6-3.html

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Volodymyr5 · **Posted:** 25 Apr 2024 12:09

Red tulip, tap water, ammonia and hydrochloric acid - part 6
http://chemistry-chemists.com/N2_2024/C ... .html#1002

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Volodymyr · **Posted:** 21 Aug 2024 23:25

Quote:

Tea turned pitch black?

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I boiled water tonight. It was just slightly orange from a bit of rust when I poured it in the mug. When I added a green tea bag, in almost instantly turned pitch black. Can anyone explain what happened? Is it likely safe to drink?

И кто бы мог подумать...

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