Can I be fired and draw unemployment for refusing to work six days a week.?

The company I work for in Arkansas is in a sales slump and has required all salaried personnel to work six days a week. I have been doing this but it has led to major burnout and I have basically given up trying to do my job because I don't care. I have been here four years and this is the worse this company has been. I have tried and talk to my boss about this but he said that this is straight from the owner and that if you don't like it you can go somewhere else. I am trying to find another job but when you work 6 12 hour days it is hard to find another job. If I refuse to work my day off and they fire me will I be eligible for unemployment?