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Chemical name: sodium methylenebisnaphthalene sulfonate
Molecular formula:CH2(C10H6SO3Na)2
Molecular weight :472.44
Appearance: buff brown powder; Solubility: easily soluble in water of any hardness
Ionicity: anionic; Stability: resist to acid, alkali, hard water and inorganic salt; Compatibility: can be used together with anionic or non-ionic surface active agent
Technical index
Item |
Index |
Diffusivity(standard), % |
100± 5 |
Sodium sulfate % |
≤ 5 |
PH(1% Aq. solution) |
7-9 |
Water insoluble matter (%) |
≤ 0.2 |
Fineness(Residue on 60mesh screen)(%) |
≤ 5 |
Functions: Its aqueous solution is transparent tan liquid with good diffusibility and colloid protection character but without surface activity such as penetrability and foaming characteristic. It is compatible with protein and polyamide fiber, but incompatible with cotton fiber and hemp fiber, etc. It also can be used in the dyeing of vat dye, acid leuco dyeing, or used in the dyeing of silk/wool interweaving fabrics. It also can be sued as dispersant and disperse auxiliary in dye industry, the stabilizer and auxiliary of tannage. Uses: :(1)as dispersing agent and filling agent for vat dyes & disperse dye, the dosage is 0.5-3 time of vat dye, or 1.5-2 time of disperse dye (2)in dying of reduced dyes: 3-5g/L, 15-20g/L, 2-3g/L (3)in dying of dispersing dyes, 0.5-1.5g/L, Dispersant NNO£»(4)in dyeing of azoic dyes, 2-5g/L, 0.5-2g/L
Packing & storage:40KG in plastic film. lined woven bag
During storage, the package should be hermetically enclosed.
It should be stored in dry and ventilated warehouses; storage period: two years. |
