The specific descriptions of the product are as follows: (1)Product: sodium sulfide with both yellow flake and red flake (2) CAS NO.: 7757-83-7 (3) Molecular Formula: Na2S (4) Molecular Weight: 78.04 (5) Purity: 60%min Fe: 1500ppm; 150ppm; 80ppm; 50ppm (6) Uses: Mainly used for making sulfur dyes, tanning, textile, printing, dyeing, molting, papermaking, medicine industries etc. (7) Package: Packed in 25kg plastic woven bag (8) Minimum Order: 1*20í»FCL (9) Delivery Time: Within 15 days (10) Payment: T/T & L/C at sight (11) Country of Origin: China