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Silicates, borates and other salts

Barium silicate

Also known as Silicic acid, barium salt, barium(2+), dioxido(oxo)silane, Silicic acid (H2SiO3), barium salt (1:1)

CAS 12650-28-1Formula BaO3SiMolar mass 213.41 g/molEC 235-746-8
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant 2 suppliers listed
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Barium silicate chemical structure, BaO3Si, CAS 12650-28-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
12650-28-1
Formula
BaO3Si
Molar mass
213.41 g/mol
EC number
235-746-8
HS code
283990
Category
Silicates, borates and other salts

What is Barium silicate?

Plain description, key identifiers and synonyms

Barium silicate is a chemical substance with the molecular formula BaO3Si and a molar mass of 213.41 g/mol. Its CAS registry number is 12650-28-1. The IUPAC name is barium(2+), dioxido(oxo)silane.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
barium(2+), dioxido(oxo)silane
CAS number
12650-28-1 CAS number cross-checkedOther or deprecated CAS: 13255-26-0
EC numbers
235-746-8, 236-245-7
Molecular formula
BaO3Si
InChIKey
HMOQPOVBDRFNIU-UHFFFAOYSA-N
InChI
InChI=1S/Ba.O3Si/c;1-4(2)3/q+2;-2
SMILES (canonical and isomeric)
[O-][Si](=O)[O-].[Ba+2]

Synonyms

  • Silicic acid, barium salt
  • barium(2+), dioxido(oxo)silane
  • Silicic acid (H2SiO3), barium salt (1:1)
  • Barium metasilicate
  • Barium mesosilicate
  • BaO3Si
  • BARIUM meta 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

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
213.41 g/molcalc.
Exact mass
213.8669 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
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H314Causes severe skin burns and eye damage.
  • H332Harmful if inhaled.
Precautionary statements (18)
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P363Wash contaminated clothing before reuse.
  • 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

Barium silicate suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 2 suppliers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

2 suppliers in 1 country

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Barium silicate price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Barium 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 Barium silicate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Barium silicate?

Barium silicate is a chemical substance with the molecular formula BaO3Si and a molar mass of 213.41 g/mol. Its CAS registry number is 12650-28-1. The IUPAC name is barium(2+), dioxido(oxo)silane.

What is the CAS number of Barium silicate?

The CAS registry number of Barium silicate is 12650-28-1. Other or deprecated CAS numbers: 13255-26-0.

What is the molecular formula and weight of Barium silicate?

The molecular formula of Barium silicate is BaO3Si and its molar mass is 213.41 g/mol.

Is Barium silicate hazardous?

Barium silicate carries the GHS signal word "Danger". Main hazards: harmful if swallowed, causes severe skin burns and eye damage, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Barium silicate?

Barium 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 Barium silicate?

CompoundList lists 2 suppliers of Barium silicate in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Barium silicate?

Suppliers quote Barium 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 Barium 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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