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Silicates, borates and other salts

Lead silicate

Also known as Lead silicon trioxide, Lead metasilicate (PbSiO3), Lead metasilicate

CAS 11120-22-2Formula O3PbSiMolar mass 283.28 g/molEC 233-246-4
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Harmful or irritant, Serious health hazard, Hazardous to the environment
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Lead silicate chemical structure, O3PbSi, CAS 11120-22-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
11120-22-2
Formula
O3PbSi
Molar mass
283.28 g/mol
Physical form
Powder
HS code
283990
Category
Silicates, borates and other salts
Illustrative photo, a shrink wrapped pallet of kraft paper sacks in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Lead silicate?

Plain description, key identifiers and synonyms

Lead silicate is a chemical substance with the molecular formula O3PbSi and a molar mass of 283.28 g/mol. Its CAS registry number is 11120-22-2. The IUPAC name is dioxido(oxo)silane, lead(2+).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dioxido(oxo)silane, lead(2+)
CAS number
11120-22-2Other or deprecated CAS: 15906-71-5, 22569-74-0
EC numbers
233-246-4, 234-363-3, 240-047-6, 245-090-4
Molecular formula
O3PbSi
UNII
TLE92T7F1J
InChIKey
AFPIWWDEGJLLCL-UHFFFAOYSA-N
InChI
InChI=1S/O3Si.Pb/c1-4(2)3;/q-2;+2
SMILES (canonical and isomeric)
[O-][Si](=O)[O-].[Pb+2]

Synonyms

  • Lead silicon trioxide
  • Lead metasilicate (PbSiO3)
  • Lead metasilicate
  • Lead silicon oxide (PbSiO3)
  • Lead silicate (PbSiO3)
  • Silicic acid (H2SiO3), lead(2+) salt (1:1)
  • Stabinex S
  • EP 202 (silicate)

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

Physical form
Powderexp.

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
283.28 g/molcalc.
Exact mass
283.9383 Dacalc.
LogP (octanol/water)
-3.26calc.
Topological polar surface area
63.19 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
5calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H302Harmful if swallowed.
  • H331Toxic if inhaled.
  • H332Harmful if inhaled.
  • H360May damage fertility or the unborn child.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (21)
  • P203Obtain, read and follow all safety instructions before use.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P301 + P317If swallowed: Get medical help.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

Lead silicate suppliers

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Lead silicate price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Industrial uses: Intermediate.

Consumer uses: Intermediate.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2839.90Indicative HS code

Silicates, commercial alkali metal silicates, other

World exports in 2024
$241M
−2.7% vs 2023, imports $307M
2019 to 2024
Top exporters
  1. China20.4%
  2. United States17.9%
  3. Netherlands11.7%
Top importers
  1. Saudi Arabia13.5%
  2. Germany8.3%
  3. United States7.3%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Lead silicate, based on the data on this page

What is Lead silicate?

Lead silicate is a chemical substance with the molecular formula O3PbSi and a molar mass of 283.28 g/mol. Its CAS registry number is 11120-22-2. The IUPAC name is dioxido(oxo)silane, lead(2+).

What is the CAS number of Lead silicate?

The CAS registry number of Lead silicate is 11120-22-2. Other or deprecated CAS numbers: 15906-71-5, 22569-74-0.

What is the molecular formula and weight of Lead silicate?

The molecular formula of Lead silicate is O3PbSi and its molar mass is 283.28 g/mol.

What is Lead silicate used for?

Industrial uses: Intermediate. Consumer uses: Intermediate.

Is Lead silicate hazardous?

Lead silicate carries the GHS signal word "Danger". Main hazards: toxic if swallowed, harmful if swallowed, toxic if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Lead silicate?

Lead silicate is usually classified under HS code 283990 (Silicates, commercial alkali metal silicates, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Lead silicate?

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What is the price of Lead silicate?

Suppliers quote Lead silicate 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 Lead silicate

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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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