Some brands of goldenrod paper contain a special dye that turns bright red when exposed to solutions that are basic, like ammonia, water, or washing soda. Не найдено: true | Нужно включить: true |
25,97 $ Earth Choice Colors Multipurpose Goldenrod Paper - 8 1/2 x 11 in 20/50 lb Writing/Text Smooth 30% Recycled 500 per Ream by Domtar Не найдено: true | Нужно включить: true |
4 мар. 2016 г. · Color-changing goldenrod paper has always been made with a dye that, when exposed to a base, changes from bright yellow to blood red. |
4,09 $ Gold paper that produces a blood red color when it comes in contact with any dilute basic solution. We recommend a 3% solution of ammonia, bleach, ... Не найдено: true | Нужно включить: true |
Оценка 5,0 (1) · 133 760,00 TZS True goldenrod paper is made from a dye which is an acid-base indicator. This paper turns bright red in bases such as ammonia, baking soda or washing soda ... |
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