Blog 2017-08-09 1,413 0
The original mosquito-repellent incense appeared in the Song dynasty. Realgar is the arsenic sulfide ore, which is also widely used in ancient times. The book also refers to making mosquito-repellent incense, which is based on the Dragon Boat Festival. It can’t help but remind people that “mosquito-repellent incense” is associated with this festival’s wormwood and the use of realgar wine.
The mosquito-repellent incense in song dynasty was further improved in Jiangnan area of Qing dynasty.
Robert Fortune, an Englishman who has been collecting tea from China in modern times, has A record of “A Residence among the Chinese”. In 1849, the English horticultural scholar, who was on his way from western Zhejiang to Wuyi mountain in Fujian province, was bitten by mosquitoes all night because of the hot and humid climate. Later, his entourage bought a mosquito coil that was used by locals, which was effective in killing mosquitoes. He later took the message back to Europe, intrigued western entomologists and chemists, and asked him what kind of material it was made of. Later, he learned about the repellent’s formula in Qinghai, Zhejiang province, and found that the mosquito-repellent incense was made from the powder, Artemisia powder, tobacco powder, a small amount of arsenic and sulfur.
In 1902, the effects of the coil, which can last more than seven hours, are officially listed.
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