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Carbonates and bicarbonates

Smithsonite

Also known as Monheimite, Zinkspat, Smithsonite cobaltoan

CAS 14476-25-6Formula CH2O3Zn+2Molar mass 127.41 g/mol
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Smithsonite chemical structure, CH2O3Zn+2, CAS 14476-25-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
14476-25-6
Formula
CH2O3Zn+2
Molar mass
127.41 g/mol
HS code
283699
Category
Carbonates and bicarbonates

What is Smithsonite?

Plain description, key identifiers and synonyms

Smithsonite is a chemical substance with the molecular formula CH2O3Zn+2 and a molar mass of 127.41 g/mol. Its CAS registry number is 14476-25-6. The IUPAC name is zinc carbonic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
zinc carbonic acid
CAS number
14476-25-6 CAS number cross-checked
Molecular formula
CH2O3Zn+2
InChIKey
FMRLDPWIRHBCCC-UHFFFAOYSA-N
InChI
InChI=1S/CH2O3.Zn/c2-1(3)4;/h(H2,2,3,4);/q;+2
SMILES (canonical and isomeric)
C(=O)(O)O.[Zn+2]

Synonyms

  • Monheimite
  • Zinkspat
  • Smithsonite cobaltoan

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
127.41 g/molcalc.
Exact mass
125.9284 Dacalc.
LogP (octanol/water)
0.22calc.
Topological polar surface area
57.53 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
5calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
2calc.
Stereocentres
0calc.
Components
2calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Smithsonite suppliers

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Smithsonite price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Functional uses

  • Astringent

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Smithsonite is traded under.

HS 2836.99Indicative HS code

Carbonates not elsewhere classified in heading 2836 and other than lithium or strontium

World exports in 2024
$992M
+2.4% vs 2023, imports $921M
2019 to 2024
Top exporters
  1. China31.0%
  2. Germany21.9%
  3. Poland11.4%
Top importers
  1. United States13.3%
  2. Poland4.9%
  3. Spain4.9%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Smithsonite is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Smithsonite, based on the data on this page

What is Smithsonite?

Smithsonite is a chemical substance with the molecular formula CH2O3Zn+2 and a molar mass of 127.41 g/mol. Its CAS registry number is 14476-25-6. The IUPAC name is zinc carbonic acid.

What is the CAS number of Smithsonite?

The CAS registry number of Smithsonite is 14476-25-6.

What is the molecular formula and weight of Smithsonite?

The molecular formula of Smithsonite is CH2O3Zn+2 and its molar mass is 127.41 g/mol.

What is Smithsonite used for?

Known uses and roles of Smithsonite include trace minerals in animal feed and nutrition and astringent.

Is Smithsonite hazardous?

No GHS hazard classification for Smithsonite is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Smithsonite?

Smithsonite is usually classified under HS code 283699 (Carbonates, peroxocarbonates (percarbonates), commercial ammonium carbonate containing…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Smithsonite?

Post a free request on CompoundList and suppliers of Smithsonite will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Smithsonite?

Suppliers quote Smithsonite on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Smithsonite

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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