TCCA 90% Chlorine Granular
(1). TCCA 90% Chlorine Granular:
TCCA 90% Chlorine Granular is an organic compound with the formula (C3Cl3N3O3). It is used as an industrial disinfectant, bleaching agent and a reagent in organic synthesis. This white crystalline powder, which has a strong "chlorine odour,"is sometimes sold in tablet or granule form for domestic and industrial use.

【#梵高一画作背后藏有自画像#】据外媒报道，苏格兰国家美术馆在对梵高的画作《农妇头像》进行X光检查时，在画布背后发现了另一幅梵高的自画像。梵高常会为了节省开支在画布反面创作，但因历经久远，很多反面画都遗失了。A hidden self-portrait of Van Gogh was discovered during an X-ray of Head of a Peasant Woman, an 1885 painting by this great painter. It is reported that when he was low on money he took to painting on both sides of the canvas, but over the years some of his reverse side paintings were covered up and lost.

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