H2CO3 — Properties & Data | MatWorld

H2CO3

ceramic

· JVASP-32138· H2CO3

H₂CO₃ (carbonic acid) is an unstable weak acid that exists primarily in aqueous solution, formed when carbon dioxide dissolves in water; it is not typically used as a bulk structural ceramic material in engineering applications. While carbonic acid and its salts (carbonates) are fundamental to numerous industrial and natural processes, H₂CO₃ itself is not employed as an engineered ceramic component due to its instability and tendency to decompose into CO₂ and water. Its relevance to materials engineering lies mainly in understanding carbonate chemistry, corrosion mechanisms in aqueous environments, and as a precursor for carbonate ceramics and minerals rather than as a standalone material for structural design.

corrosion analysis in water systemscarbonate mineral formationpH buffering in aqueous mediaresearch/fundamental chemistry

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	1.770	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	5.942	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	6.103	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.469	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00117	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00230	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-349.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	355.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01290	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.144	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

H2CO3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental