CAS 1185-53-1 Tris (hydroxymethyl) Aminomethane Hydrochloride

Basic Information: 
 

Items	Standard	Result
Appearance	White crystal	White crystal
IR	Confirm to reference standard	Confirm
Assay,by Titration 0.1 N NaOH/Dried basis	99.5-101%	99.9%
Melting point	149-153ºC	150.2-152.7ºC
Water content(By K.F)	0.5% max	0.36%
Loss on drying	0.5% max	0.04%
PH(1.0% aqueous)	4.2-5.0	4.8
Ultraviolet Absorbance(1.0M aqueous)	A(260nm): 0.06Abs unit max A(280nm): 0.05Abs unit max	0.022 0.021
Solubility(1.0M aqueous)	Clear, colorless solution	Clear, colorless solution
Heavy metal	5ppm max	5ppm max
Fe	5ppm max	5ppm max
Ni	3ppm max	3ppm max

 

 

         

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CAS 1185-53-1 Tris (hydroxymethyl) Aminomethane Hydrochloride