In a bowl, mix orange juice, brown sugar, vinegar, salt and ketchup; set aside.
Pour the flour in smaller bowl. Cover the chicken in flour and shake off excess. Pour small amount of oil in skillet and brown the chicken. The chicken doesn't need to be fully cooked. After chicken is done cooking pour into crock pot.
Cover the chicken with the sauce and give a good stir. Cook on low for 5-6 hours or High for 2-3 hours. Serve over Rice.