Basic Zinc Carbonate

Properties:

Molecular formula: ZnCO ₃ . 2Zn(OH) ₂ . H ₂ O
Molecular weight : 342.23
white formless powder ,odorless and tasteless, relative density 4.42-4.45

Standard: Company standard HHXPQB-JSTSX-2005

Technical index : % ( m/m )

Item	pharmaceutical material	feedstuff additive	desulphurizer	rubber	paint	industry grade
Main assay( Zn )(dry) ≥	57-58	57-58	57-58	55-57	55-57	55-56
Loss on ignition	25.0-28.0	25.0-28.0	25.0-28.0	25.0-32.0	25.0-32.0	28.0-35.0
Heavy metal ( Pb ) ≤	0.001-0.01	0.001-0.01	0.05-0.1	0.1-0.2	0.1-0.2	0.2-0.4
Moisture ≤	1.0-2.0	1.0-2.0	2.0-4.0	2.0-4.0	2.0-4.0	3.0-5.0
Sulfate ( SO 4 ) ≤	0.05-0.60	0.05-0.60	0.60-1.00	0.60-1.00	0.60-1.00	－
Residue on screen( wet 100um ) ≤	1-3	1-3	3-5	3-5	3-5	5-8
( Cd ) ≤	0.001	0.001	－	－	－	－

Uses:

basic zinc carbonate is used as skin protector, zinc supplement,astringent, or used in emulsion, artificial silk, petroleum , desulphurizer , catalyst . rubber , paint .

Packing, transportation and storage :

industry basic zinc carbonate

Packing is plastic woven bag lined with two-layer PE bag , Net Wt. 50kg . size is : 580 × 1150mm .
It should ve protected by covers when transportation , avoid rain and moisture .
in cool and dry place , avoid rain and moisture . far away from insolation and heat

 

Resource:

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