Weifang Rui Desheng Chemical Co., Ltd. (www.ruidesheng.com) is located in Weifang, Shandong Weifang Binhai Economic Development Zone, Contact: Sodium Sulfate Liqing Jie direct dyes dyeing process can be broadly divided into: adsorption, diffusion, solid with three stages. In the not too fast color dye adsorption stage, if added to the electrolyte in the adsorption stage, it is possible to make the dye aggregation caused by uneven dyeing, and in the middle of Heico of sodium sulphate electrolyte, can avoid excessive color, pairs can improve dye uptake. Appearance: monoclinic, short prismatic crystals, aggregates showed a dense block or hull shape, such as sodium sulphate, Shandong, colorless, transparent, sometimes with yellow or green Dragon sodium sulfate, soluble in water. White, odorless, bitter crystalline or powder, hygroscopic. Appearance colorless, transparent crystals or granules larger small crystals. Structure: monoclinic, orthorhombic or hexagonal. Solution: a colorless solution sodium sulphate solution. Melting point: 884 ℃ (heptahydrate at 24.4 ℃ turn anhydrous, sodium sulfate decahydrate was 32.38 ℃, lost 10H2O at 100 ℃) Boiling Point: 1404 ℃ Relative density: 2.68g/cm3 thermodynamic functions (298.15K, 100kPa) : standard molar heat of formation ΔfHmθ (kJ · mol): -1387.1 standard molar Gibbs free energy ΔfGmθ (kJ · mol ^ -1): -1270.2 standard entropy Smθ (J · mol ^ -1 · K ^ -1) : 149.6 Solubility: soluble in ethanol, insoluble in water, soluble in glycerin. Other properties: BaCl2 + Na2SO4 = BaSO4 ↓ +2 NaCl; sodium acid is oxygenated acid and alkali salts. Rui Desheng Chemical Co., Ltd. Weifang