If confirmed then casualties will be much higher than the govt. is reporting.
Definitly ... I was lazy before see this article
http://www.reuters.com/article/2015/08/15/us-china-blast-idUSKCN0QH2B220150815
Chinese police confirmed for the first time the presence of deadly sodium cyanide at the site of the blast as a series of new, small explosions were heard and small fires broke out.
Police confirmed the presence of the chemical, fatal when ingested or inhaled, "roughly east of the blast site", the state-run Beijing News said.
It did not say how much had been found or how great a risk it posed but residents expressed concern about the air and water.
"I do feel a bit afraid," said construction worker Li Shulan, 49, when asked about the air quality. "It definitely doesn't feel good. As you can see our boss is making us wear masks."
An area three km (two miles) from the blast site was cordoned off, the Beijing News said.