Getting started
Begin with the calculation you need
Choose the calculator that matches the task: buffer recipe, solution prep, conversion, dilution, or timer. Enter known values first, then review units before using a result in the lab.
Support
RayCrest Lab Calculator Support
Help for the RayCrest Lab Calculator iOS and iPadOS app: buffer recipes, solution calculations, concentration conversions, protocol timers, optional compound lookup, and troubleshooting.
Help topics
Common support areas.
Calculators
Calculators and conversions
Use the solution and conversion tools for mass/volume, mole/volume, molarity, molecular weight, concentration, and volume relationships. Manual entry works without online compound lookup.
Buffers
Buffer recipes
Select a buffer system, review the pH range, enter target pH, strength, volume, and preparation preference, then check the generated recipe before preparing reagents.
Timers
Protocol timers
Create named timers for recurring protocol steps. Confirm timer labels and durations before starting time-sensitive work.
Troubleshooting
When results look unexpected
Check selected units, entered values, molecular weight, target pH, buffer system, temperature assumptions, and whether optional lookup returned the expected compound.
Contact
Send reproducible details
Email the screen, all input values and units, selected buffer or compound, lookup state, app version, iOS or iPadOS version, device model, and screenshots.
Calculation note
Use calculator outputs as aids, not final protocols.
RayCrest Lab Calculator is a calculation aid for research and educational lab workflows. Always verify units, pH, compatibility, and safety requirements before preparing reagents.
FAQ
Quick answers.
Can I use the app offline?
Yes. Manual calculators, saved recipes, and timers work without online lookup. Optional compound search requires network access.
Does RayCrest track my calculations?
No. The app does not include analytics, advertising SDKs, or tracking frameworks.
Why did a PubChem lookup fail?
Check network access, spelling, and whether the compound exists in the public chemistry database. You can still enter molecular weight manually.
Are buffer recipes final protocols?
No. They are calculation aids. Always verify pH, compatibility, safety, and lab-specific requirements before use.
Is RayCrest Lab Calculator intended for clinical or diagnostic use?
No. It is intended as a research and education lab utility. Review calculations, follow your lab's SOPs, and apply appropriate safety checks before using results in a protocol.
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