[1][2] This is an organic ammonium salt of tartaric acid.

Ammonium tartrate can be prepared by the reaction of tartaric acid and ammonium carbonate.

Ammonium tartrate forms colorless crystals that slowly release ammonia if exposed to air.

[5] Ammonium tartrate crystallizes in the monoclinic crystal system with the space group P21 (space group No.

[6] The compound is used in textile industry and in medicine.