Specifications: Index High grade 1st grade Appearance Grayish white crystal Purity %min. 75 74 1-Naphthylamine%max. 0.02 0.02 Water insolubles %max. 0.1 0.2 PHYSICAL AND CHEMICAL PROPERTIES: Physical State(20 °C): Form: Liquid Appearance: Clear Color: Colorless～Brown Applications: 1-Amino-4-naphthalene sulfonic acid sodium salt is a greyish-white crystal.The sodium salt of industrial products contains two or four crystal water. It changes slowly into a rose colour in air.It is easily soluble in water and soluble in 95% of alcohol.Its chief use is employed in organic pigments or the sythesis of intermediates of azo-dyes. Packing , Storage & Transportation: Hazards Class: Does not correspond to the classification standard of the United Nations Specific precautionary: When transporting the product,confirm that there is no leakage from the vessel. Transport measures and conditions: Load with care lest it should collapse,tumble,fall,or be damaged. Storage conditions: Seal the container air-tight and store it in a cool dark place. Packaging material: In plastic woven bag of 50kgs nett or 25kgs nett each with plastic lining