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1. Property

Appearance	Brown Powder
Compose	Methyl Naphthalene Sulfonate
Ion type	Negative ion
Solubility	Easy dissolve in water

2. The main technical standard

Item	Standard	Result
pH(1% aqueous solution)	7.0-9.0	7.37
Dispersion(%)	≥90	92
Sodium sulfate content(%)	≤8	7.10
Water content(%)	≤9	7.38
Content %(Ca+ Mg+)	≤0.4	0.15
Free formaldehyde content(mg/kg)	≤300	<300
Insoluble matter(%)	≤0.10	<0.10
Thermal stability(℃)	≥130	140
Fineness(30μm Sieve)%	≤5	<5

3. Performance and use

1) As dispersing agent and filler for disperse dye,vat dye and reactive dye.
2) Used in pigment pad dyeing of vat dye, acid dyeing in printing and dyeing industry.
3) As auxiliary tanning agent in leather industry, stabilizing agent in rubber industry.
4) Packing: 25KG Woven bag with pallet
5) Non-toxic, non-inflammable, non-explosive.