A user is seeking a standalone salt bath capable of reaching temperatures up to 600°C, with dimensions of approximately 1 foot tall and 0.5 feet wide at the base. They are specifically looking for a metal container equipped with a heating element suitable for melting lithium nitrate (LiNO3) and potassium nitrate (KNO3). Recommendations for online sources or manufacturers that provide such equipment are requested. Additionally, a suggestion was made regarding a 60:40 mix of sodium nitrate to potassium nitrate as a potential solution for achieving the desired temperature.