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Trichloroisocyanuric Acid (TCCA) spilled on the ground should be covered with dry sand

Experts suggest that the trichloroisocyanuric Acid (TCCA) spilled on the ground, should be covered with dry sand, or with a dry towel, clothes will trichloroisocyanuric Acid (TCCA) parcel and transferred to a dry place and timely evacuation site personnel. For Wang's identity, experts also questioned. According to the experts, national health and safety for the swimming pool have very strict requirements in Article XX of the June 21, 2007 by the Ministry of Health, the State Sports General Administration jointly issued the "place to swim health standards": artificial swimming place should be set up specifically responsible for water purification and disinfection work, and should establish a health professional training and examination system, regular staff of the sanitary units and expertise in training and assessment and make a record. So, does Nanjing Sports School swimming pool have a professional staff? Now that you have engaged in a "secondary" for 11 years, but in the event the case is still carried out in error, the existence of training and managing the pool of visible significant vulnerabilities. Experts pointed out that the recent nationwide spate of chemical enterprises pollution incidents after the summary, it is found that the mainly reason is management deficiencies, leading to staff negligence in operation, of which there are also deliberately avoid regulation, even for the economic interests of illegal production behavior. In this regard, experts suggest that to strengthen government supervision, should strengthen the sense of social responsibility of business managers and employees, so that everyone is aware of safe production not only in the respect of their health, it is also about the safety and health of all people.
The study of TCCA as following. A new highly efficient method for the preparation of substituted coumarins via Pechmann reaction using catalytic amounts of trichloroisocyanuric acid (TCCA) under solvent-free conditions is presented. Short reaction times, easy work-up procedure, high yields high stability of products, commercial availability and the low cost of the catalyst are noteworthy advantages of the current work.
We report herein a general and highly efficient route to synthesize 4-substituted coumarins by trichloroisocyanuric acid (TCCA).