product name :
sulfamic acid
overview
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cas no :
1034-99-8
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einecs no :
226-218-8
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hs code :
2811199090
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grade standard :
hg/t2527-2011 grade 99.5%min,99.8min
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appearance :
white crystalline
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packaging details :
25kg/bag
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application :
metal parts cleaning, getting away oxidize surface.slightlycorrosive to metal, used to flush boiler, and sterilize bacterium in water.bleach fibre, wood and paper. remove nitrite in tobacco.raw materialfor paint, dye stuff and ph test paper.used as fire resistance of cotton fibre.usedas solidifying agent of resin.raw material for pesticide intermediate, ramification of sulfamic acid.
product description
basic info:
molecular formula: nh2so3h.
molecular weight:97.09
--white orthorhombic crystal. nonvolatile, nonhygroscopic, smell-less. high stability at normal temperature and can maintain original quality for several years. freely soluble in water and liquid ammonia, strongly acidic in water solution.
--slightly soluble in methanol, insoluble in ethanol and ether. characteristics of double functional group of amidogen and sulfonic radical, may go on chemical reaction with many matters.
--melting point is 205℃, decomposing temperature is 209℃.
specification:
item | specifications | |
99.5% grade | 99.8% grade | |
sulfamic acid ≥ % | 99.5 | 99.8 |
sulphate(so4) ≤ % | 0.05 | 0.02 |
insoluble in water ≤ % | 0.01 | 0.01 |
iron(fe) ≤ % | 0.001 | 0.001 |
heavy metals(pb) ≤ % | 0.0003 | 0.0003 |
chloride (cl) ≤ % | 0.002 | 0.002 |
moisture content ≤ % | 0.03 | 0.03 |
applications:
plastic industry:
sulphamic acid finds application in the plastic wherever a curing agents is required which does not have the disadvantage of inorganic acids and which acts faster than organic acids.
manufacturing of dyes, pigments and in the dyeing of leather:
sulphamic acid removes excess of nitrides used in the diazotization reactions in the manufacturing of dye stuffs and pigments. nitrides if present in process water of effluents can also be removed by using sulphamic acid.
paper & pulp industry:
sulphamic acid prevents pulp degradation due to temperature at the chlorination and hydrochloride stage. it permits bleaching at higher temperature and lower ph without loss of strength.
sulphation and sulphamation:
sulphamic acid is used for sulphation and sulphamation of many organic compounds. sulphation of aklyl pheno-ethylen oxide condensation products for detergents and sulphation of ethoxylated phenol-formaldehyde resins is preferable with sulphamic acid. stronger agents cause unwanted ring sulphomation.
chlorine stabilization:
chlorine gas in water form hocl which reacts with sulphamic acid form n-chloro-sulphamic acid to n-chlorosufamic acid more stable and yet has active chlorine, because of this, sulphamic acid is used for stabilizing chlorine in swimming pools and cooling towers.
others
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