Basic information Physical Properties Occurrence and Uses Production Safety Related Supplier
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Zinc carbonate

Basic information Physical Properties Occurrence and Uses Production Safety Related Supplier
Zinc carbonate Basic information
Zinc carbonate Chemical Properties
  • Melting point:decomposes [KIR84]
  • Density 4,398 g/cm3
  • form Solid
  • color White
  • Water Solubility mol/L solution H2O: 1.64×10?4 (solubility is given at Pco2=0.00032 bar) [KRU93]; soluble dilute acids, alkalies, NH3 solutions [MER06]
  • Solubility Product Constant (Ksp)pKsp: 9.94
  • Stability:Stable. Incompatible with acids.
  • CAS DataBase Reference3486-35-9(CAS DataBase Reference)
  • EPA Substance Registry SystemZinc carbonate (3486-35-9)
Safety Information
MSDS
Zinc carbonate Usage And Synthesis
  • Physical PropertiesWhite crystalline solid; orthorhombic structure; refractive index 1.818; Mohs hardness 4.3; decomposes at 300°C forming zinc oxide; practically insoluble in water, 10 mg/L at 15°C; soluble in acids, alkalis, and ammonium salt solutions.
  • Occurrence and UsesZinc carbonate occurs in nature as mineral smithsonite and zincspar. The compound is used in ceramics and fire proofing filler for rubber and plastics.Also, it is used in lotions, ointments, cosmetics, and as a topical antiseptic.
  • ProductionZinc carbonate is derived from its mineral smithsonite. Also, the compound may be prepared by the reaction of sodium bicarbonate with a soluble zinc salt:
    ZnCl2 + NaHCO3 → ZnCO3 + NaCl + HCl
  • Chemical PropertiesWhite, crystalline powder. Evolves carbon dioxide at 300C. Soluble in acids, alkalies, and ammonium salt solutions; insoluble in water.
  • Chemical PropertiesSmithsonite is zinc carbonate, ZnCO3, a hexagonal mineral with a rhombohedral cleavage. It is a brittle mineral; hardness, 4–4.5; specific gravity, 4.3–4.5; luster, vitreous to dull; color, usually white, but may be colored yellowish or brownish or perhaps blue or green due to impurities. It is translucent to opaque.
  • UsesAntiseptic (topical); astringent.
  • General DescriptionA white crystalline solid or powder that is insoluble in water. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. Used in pharmaceuticals, to make other zinc compounds, as a feed additive.
  • Reactivity ProfileZinc carbonate reacts with acids to generate carbon dioxide and a zinc-containing solution. Dissolves in bases and in solutions of ammonium salts.
  • Health HazardINHALATION OF DUST OR FUMES: Dry throat, cough and chest discomfort. Fever and sweating. SKIN: Astringent. INGESTION: May cause nausea and vomiting.
  • Fire HazardBehavior in Fire: Could decompose to liberate CO 2
  • Safety ProfileAn experimental teratogen. When heated to decomposition it emits toxic fumes of CO and Zn.
Zinc carbonate Preparation Products And Raw materials
Zinc carbonate(3486-35-9)Related Product Information
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