1 Very low-sodium foods contain 35 mg or less per serving. 2  Salt-free/sodium-free foods must contain no more than 5 mg per serving.
Coal County, Oklahoma. Coal County is a county located in the U.S. state of Oklahoma. As of the 2010 census, the population was 5,925. Its county seat is Coalgate.
TYPES OF COAL Coal is classified into four main types, or ranks (lignite, subbituminous, bituminous,anthracite), depending on the amounts and types of carbon it contains and on the amountof heat energy it can produce.ignite is the lowest rank of coal with the lowest energy content. Lignite coal depositstend to be relatively young coal deposits that were not subjected to extreme heat orpressure. Lignite is crumbly and has high moisture content.