40 CFR 98.528 - Definitions.

All terms used of this subpart have the same meaning given in the Clean Air Act and subpart A of this part.

Table 1 to Subpart ZZ of Part 98—CO2 Emission Factors for Carbonate-Based Raw Materials

Carbonate	Mineral name(s)	CO2 emission factor a	BaCO3	Witherite, Barium carbonate	0.223	CaCO3	Limestone, Calcium Carbonate, Calcite, Aragonite	0.440	Ca(Fe,Mg,Mn)(CO3)2	Ankerite b	0.408-0.476	CaMg(CO3)2	Dolomite	0.477	FeCO3	Siderite	0.380	K2CO3	Potassium carbonate	0.318	Li2CO3	Lithium carbonate	0.596	MgCO3	Magnesite	0.522	MnCO3	Rhodochrosite	0.383	Na2CO3	Sodium carbonate, Soda ash	0.415	SrCO3	Strontium carbonate, Strontianite	0.298

a Emission factors are in units of metric tons of CO2 emitted per metric ton of carbonate-based material.

b Ankerite emission factors are based on a formula weight range that assumes Fe, Mg, and Mn are present in amounts of at least 1.0 percent.