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Tools · Fluids & Thermodynamics

PHREEQC Aqueous Speciation

Aqueous speciation, titration, and mixing with USGS PHREEQC for electrolytes and mineral saturation

Open in the appRun via API

Hardware and price

Price per run

What a typical run reserves from your wallet: the catalog's expected runtime on each piece of hardware × your plan's per-second rate. Larger inputs reserve more, and you're charged only for the seconds the job actually runs.

PHREEQC Aqueous Speciation: reservation per run, USD
HardwareTypical runtimeBasicStarterProEnterprise
CPUDefault5 min$0.042$0.024$0.015$0.009

In workflows

Chain it with other steps.

Each input and output has a data kind, so the builder only connects steps that fit.

Inputs

None

Outputs

  • ArchiveZIP
  • TableCSV

References

The method behind it.

  1. David L. Parkhurst, C.A.J. Appelo (2013). Description of input and examples for PHREEQC version 3: A computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations. Techniques and Methods. doi:10.3133/tm6a43 (opens in a new tab)

Run via API

Submit it from your own code.

Use an API key from your account. The estimate uses your plan's rates; submitting reserves that amount from your wallet.

# Estimate the reservation for your plan (payload fields: see the API reference)
curl -X POST https://api.cognichem.com/api/v1/jobs/estimate \
  -H "X-Api-Key: $COGNICHEM_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"job_type": "phreeqc", "resource": "cpu", "payload": {}}'

# Submit (retrying with the same Idempotency-Key never submits twice)
curl -X POST https://api.cognichem.com/api/v1/jobs/submit \
  -H "X-Api-Key: $COGNICHEM_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"job_name": "phreeqc-1", "job_type": "phreeqc", "resource": "cpu", "payload": { ... }}'
Payload fields and examples in the docs

Fluids & Thermodynamics

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