@pipeworx/nist-fluid-properties

Connect: https://pipeworx.io/mcp — every tool in the catalog, including @pipeworx/nist-fluid-properties’s. Install: one-click buttons

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Tools: 3

Density, viscosity, thermal conductivity, speed of sound, enthalpy, entropy, Cv/Cp and phase for ~76 reference fluids — water, nitrogen, oxygen, argon, carbon dioxide, light hydrocarbons, and common refrigerants (R11-RC318) — at a caller-given temperature and pressure, or along the liquid/vapor saturation curve. Every value carries its unit.

Tools

• nist_fluid_properties(fluid, temperature, temperature_unit?, pressure, pressure_unit?) — density, specific volume, internal energy, enthalpy, entropy, Cv, Cp, speed of sound, Joule-Thomson coefficient, viscosity, thermal conductivity and phase (liquid/vapor/supercritical) at one temperature/pressure point.
• nist_fluid_saturation(fluid, temperature? OR pressure?, temperature_unit?, pressure_unit?) — give a saturation temperature (returns the matching saturation pressure) or a saturation pressure (returns the matching saturation temperature), plus liquid- and vapor-side density, enthalpy, entropy, viscosity, thermal conductivity and surface tension on the phase boundary.
• nist_fluid_list(query?) — the ~76 fluids this pack covers, optionally filtered by a substring of the name or refrigerant code. An unrecognized fluid argument to either of the tools above also returns this same list.

Auth

Keyless.

Data sources

• NIST, Chemistry WebBook SRD 69 — Thermophysical Properties of Fluid Systems. A public, keyless web form; every call proxies it live. The only thing this pack bakes in is a ~76-row fluid-name-to-NIST-id lookup table (not the measurements) so a caller can say “water” or “R134a” instead of NIST’s internal identifier.

Notes

• “Air” is not in this dataset as a single fluid. NIST’s own fluid- property form does not carry a pseudo-pure “air” entry — query nitrogen, oxygen and argon separately if that’s what you need.
• Fluid names, formulas and refrigerant codes are all accepted and matched loosely (case/space/hyphen-insensitive): "water", "H2O", "co2", "Carbon Dioxide", "R134a", "r-134a" all resolve.
• Requesting a condition outside a fluid’s valid range (below its triple point, past its upper temperature/pressure limit, or an otherwise unstable point) comes back from NIST as a range error — surfaced as a user_error: with a suggestion to try a condition nearer standard temperature/pressure.
• Viscosity is returned in cP, which is numerically identical to mPa·s (1 cP = 1 mPa·s) — no conversion needed if your use case wants SI.

Tools

• nist_fluid_properties — Density, specific volume, internal energy, enthalpy, entropy, Cv, Cp, speed of sound,
• nist_fluid_saturation — Liquid/vapor saturation (phase-boundary) properties for one of NIST’s ~76 reference fluids —
• nist_fluid_list — List the ~76 fluids NIST’s Chemistry WebBook carries full thermophysical property surfaces for