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Carbonate Water Charge Balance Equilibrium Speciation
x402
Carbonate Water Charge Balance Equilibrium Speciation is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-04).
Resolves complete carbonate speciation in an aqueous solution using an explicit bounded charge-balance equilibrium model given total carbon, alkalinity, and dissociation constants.
Price / call$0.003
Success—
StatusUnknown
How this service works
Resolve complete carbonate speciation in an explicit bounded aqueous equilibrium model.
Output
Returns the fully resolved carbonate speciation including equilibrium concentrations of all carbonate species (H2CO3, HCO3⁻, CO3²⁻), the equilibrium pH, hydroxide and hydrogen ion concentrations, and the charge balance residual for the aqueous system.
Example use cases
Groundwater pH estimation from field measurements
“I have a groundwater sample with total inorganic carbon of 0.003 mol/L and measured alkalinity of 0.0028 mol/L — using K1=4.3e-7, K2=4.7e-11, and Kw=1e-14, can you resolve the full carbonate speciation and tell me the equilibrium pH and species distribution?”
Seawater carbonate chemistry for ocean acidification study
“For a seawater sample at standard conditions, total carbon is 0.002 mol/L and alkalinity is 0.0023 mol/L with K1=1.2e-6, K2=8.5e-10, and Kw=6e-14 — please compute the complete carbonate equilibrium speciation including bicarbonate and carbonate ion concentrations.”
Industrial water treatment alkalinity check
“We're treating process water with a total carbon concentration of 0.0015 mol/L and an alkalinity of 0.0018 mol/L — using K1=4.3e-7, K2=4.7e-11, and Kw=1e-14, run the full charge-balance carbonate equilibrium so we can verify the buffer capacity and pH.”
Technical details
Endpoint
POSThttps://detect.halowerk.com/v1/F-TD2000-GEO-INDUSTRY-B007/carbonate-water-charge-balance-equilibrium-speciation?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a rigorous, closed-form bounded equilibrium solution for the full carbonate system in aqueous chemistry — particularly useful in geochemistry, hydrogeology, oceanography, and water treatment contexts where you have measured total dissolved inorganic carbon (DIC) and alkalinity alongside known or estimated dissociation constants. Prefer this over generic chemistry solvers when you need explicit charge-balance enforcement and bounded speciation outputs suitable for downstream geochemical modeling or reporting.
Side effects
- Input values outside allowed bounds (e.g. total_carbon_molar < 1e-8 or > 1) return a validation error
- Thermodynamically inconsistent combinations of K1, K2, Kw may cause non-convergence of the equilibrium solver
- Missing required fields (total_carbon_molar, alkalinity_molar, k1, k2, kw, or claim) return a 400 error
- Payment not provided or insufficient USDC results in a 402 response
- Extreme alkalinity values near the boundary (-1 or 2 mol/L) may produce physically unrealistic results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| artifact | object |
Tags
x402
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