Dorsey said there were about 300 gallons of PPH in the tank that leaked. It's not clear how much of that material leaked out of the tank or how much reached the river.
Dorsey said he was "extremely disappointed" to be learning only Tuesday -- 12 days after the leak -- about the presence of PPH in the tank that leaked.
Goodwin said that when Tomblin was told of the new information, the governor said that company's behavior was "totally unacceptable."
Crude MCHM is a coal-cleaning chemical made by Eastman Chemicals Co. It is stored and sold by Freedom Industries out of its facility just north of downtown Charleston.
While some reports have used the term "Crude MCHM" and the chemical "4-methylcyclohexanemethanol" interchangeably, the 4-MCHM is actually only one of seven components of Crude MCHM.
Eastman Chemical's material safety data sheet, or MSDS, says the chemical 4-methylcyclohexanemethanol makes up 68 to 89 percent of Crude MCHM. The Eastman MSDS also shows that Crude MCHM includes six other ingredients: 4-(methoxymethyl)cyclohexanemethanol, water, methyl 4-methylcyclohexanecarboxylate, dimethyl 1,4-cyclohexanedicarboxylate, methanol and 1,4-cyclohexanedimethanol.
The Gazette learned about the presence of an additional chemical in the Freedom mixture from a source, and then confirmed some of the information with the U.S. Chemical Safety Board, which is investigating the leak.
Later on Tuesday evening, the Tomblin administration made a team of state officials available to provide additional details.
Daniel Horowitz, managing director of the CSB, said, "we were told about another component in the mixture that had been added to the Crude MCHM, a product called 'PPH' consisting of polyglycol ethers, at about 5.6 percent."
Horowitz said that according to an MSDS provided by Freedom Industries, the additional product "has low oral toxicity."
"We are reviewing the information now and [the CSB] team may further comment," Horowitz said.
Later, Horowitz said that the CSB's information came from the U.S. Environmental Protection Agency and referred calls to EPA. Officials from EPA did not respond to requests for comment.
Reach Ken Ward Jr. at kw...@wvgazette.com or 304-348-1702.