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Silicates, borates and other salts

Calcium silicate hydrate

Also known as calcium, dioxido(oxo)silane, hydrate, Silicic acid (H2SiO3), calcium salt (1:1), monohydrate, Calcium oxosilanebis(olate)--water (1/1/1)

CAS 14404-64-9Formula H2CaO4SiMolar mass 134.18 g/mol
1 supplier listed
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Calcium silicate hydrate chemical structure, H2CaO4Si, CAS 14404-64-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
14404-64-9
Formula
H2CaO4Si
Molar mass
134.18 g/mol
HS code
283990
Category
Silicates, borates and other salts

What is Calcium silicate hydrate?

Plain description, key identifiers and synonyms

Calcium silicate hydrate is a chemical substance with the molecular formula H2CaO4Si and a molar mass of 134.18 g/mol. Its CAS registry number is 14404-64-9. The IUPAC name is calcium, dioxido(oxo)silane, hydrate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
calcium, dioxido(oxo)silane, hydrate
CAS number
14404-64-9Other or deprecated CAS: 1344-96-3
Molecular formula
H2CaO4Si
InChIKey
JLDKGEDPBONMDR-UHFFFAOYSA-N
InChI
InChI=1S/Ca.O3Si.H2O/c;1-4(2)3;/h;;1H2/q+2;-2;
SMILES (canonical and isomeric)
O.[O-][Si](=O)[O-].[Ca+2]

Synonyms

  • calcium, dioxido(oxo)silane, hydrate
  • Silicic acid (H2SiO3), calcium salt (1:1), monohydrate
  • Calcium oxosilanebis(olate)--water (1/1/1)

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
134.18 g/molcalc.
Exact mass
133.9348 Dacalc.
LogP (octanol/water)
-4.08calc.
Topological polar surface area
94.69 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
6calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.

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.

Calcium silicate hydrate suppliers

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Where suppliers are based

1 supplier in 1 country

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Calcium silicate hydrate 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

Use classes: Processing Aids and Additives, Safer Chemical Classes.

Functional uses

  • Processing aids not otherwise specified

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • Safer Choice ingredient list (USA)

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Calcium silicate hydrate 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 Calcium silicate hydrate is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Calcium silicate hydrate, based on the data on this page

What is Calcium silicate hydrate?

Calcium silicate hydrate is a chemical substance with the molecular formula H2CaO4Si and a molar mass of 134.18 g/mol. Its CAS registry number is 14404-64-9. The IUPAC name is calcium, dioxido(oxo)silane, hydrate.

What is the CAS number of Calcium silicate hydrate?

The CAS registry number of Calcium silicate hydrate is 14404-64-9. Other or deprecated CAS numbers: 1344-96-3.

What is the molecular formula and weight of Calcium silicate hydrate?

The molecular formula of Calcium silicate hydrate is H2CaO4Si and its molar mass is 134.18 g/mol.

What is Calcium silicate hydrate used for?

Use classes: Processing Aids and Additives, Safer Chemical Classes.

Is Calcium silicate hydrate hazardous?

No GHS hazard classification for Calcium silicate hydrate 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 Calcium silicate hydrate?

Calcium silicate hydrate 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 Calcium silicate hydrate?

CompoundList lists 1 supplier of Calcium silicate hydrate 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 Calcium silicate hydrate?

Suppliers quote Calcium silicate hydrate 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 Calcium silicate hydrate

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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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