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Física i Química a l'escola

Física i Química a l'escola

Certamente você já deve ter ouvido falar dos parabenos, não? Caso não tenha, eles são conservantes sintéticos que estariam relacionados a distúrbios endócrinos e até câncer. A partir dessas descobe...

Conservantes tão prejudicais quanto os parabenos

Certamente você já deve ter ouvido falar dos parabenos, não? Caso não tenha, eles são conservantes sintéticos que estariam relacionados a distúrbios endócrinos e até câncer. A partir dessas descobe...

Great simplicity in the design (Laboratório de ciências vetor Vetor grátis)

Laboratório de ciências vetor

Great simplicity in the design (Laboratório de ciências vetor Vetor grátis)

Firework chemistry

What makes fireworks colorful? It’s all thanks to...

Firework chemistry

all-things-bright-and-beyootiful:    By Katie Rodgers via paperfashion

all-things-bright-and-beyootiful: By Katie Rodgers via paperfashion

On that day, mankind received a grim reminder...

Anatomically correct art…

On that day, mankind received a grim reminder...

Psicologia das Cores ♥ erikakarpuk.com

Psicologia das Cores ♥ erikakarpuk.com

Колбы с цветными жидкостями

Колбы с цветными жидкостями

Malika Favre

O estilo minimalista ousado da francesa Malika Favre

Malika Favre

Removing fluorescein from the organic phase. During the reaction an amide of fluorescein was made what doesn’t have a color and it does not fluoresces under these conditions. So hopefully, the transparency of the upper layer means something good.  The bottom layer is a dilute (1M) sodium hydroxide solution what reacts with the fluorescein to form the highly fluorescent fluoriescein sodium salt what produces this intense green color in the aqueous phase.

Removing fluorescein from the organic phase. During the reaction an amide of fluorescein was made what doesn’t have a color and it does not fluoresces under these conditions. So hopefully, the transparency of the upper layer means something good. The bottom layer is a dilute (1M) sodium hydroxide solution what reacts with the fluorescein to form the highly fluorescent fluoriescein sodium salt what produces this intense green color in the aqueous phase.

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