... Used in Minning,Leather Making,Textile Specifications:Sodium hydrosulfide(NaHS) Purity:70%min Fe:30ppm Liquid,flakes,Solid Used in Minning ... ,Leather making,Textile industry etc. Product:sodium hydrosulphide Molecular formula ... black liquid when the temperature is about 350 oC.Sodium sulfhydrate for industrial use is generally liquor in orange ...