Products
Sodium sulfide crystal
Product Name: Sodium sulfide crystal (Na2S.5½H2O)
Property: White particle, it has stable quality and low accessory constituent; it is white, odorless and oxidizable in contact with the air.
Packing: Net weight 25.0kg/bag. Inside is double-layer plastic film, hot sealing; outside is woven bag, stitch it up on a machine.
Precautions: Protect from rain, damp, heat during transportation and storage, avoid contacting with acid and corrosive articles.
Use: Mainly used in engineering plastic, rubber, silica gel, chemical detergent, medicine, health-care food additive and other industries。
Technical Index:
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| Item | Index |
| Sodium sulfide (Na2S), ω/% ≥ | 44.0 |
| Sodium thiosulfate (Na2S2O3), ω/% ≤ | 0.40 |
| Sodium sulfite (Na2SO3), ω/% ≤ | 0.30 |
| Iron (Fe), ω/ppm ≤ | 5 |
| Water insoluble matter, ω/% ≤ | 0.012 |
| Sodium carbonate, ω/% ≤ | 0.15 |
| Appearance | White crystal |