Molten rhymes with:
molton, moulton, bolten, bolton, colton, dolton, doulton, holtan, holten, holton, houlton, knowlton, kolton, molton, moulton, scholten, zoltan
Molten sounds like:
malathion, malden, malleton, maulden, mauldin, mealtime, melatonin, meldon, meltdown, melton, militiamen, milton, molden, molton, moulden, moulton, muldoon, muldowney, multnomah