Use it for
- Dilution — C₁V₁ = C₂V₂ with the substitution shown before you pour.
- Weigh-out — molarity ↔ mass ↔ volume; hydrate forms flagged when recognised.
- Buffer — Henderson–Hasselbalch for a target pH. A prompt for the bench, not a pH meter.
How
Scan → open a calculator → optional Add to Home Screen (works offline after one load).
Not an ELN. Not a safety authority. SDS, PPE, and your institution's rules still win.
Kurzfassung
Kostenloser Prep-Rechner (Verdünnung, Einwaage, Puffer). Kein Konto, nichts zu installieren. Nach einmal Laden auch offline. Kein ELN. SDS, PSA und Hausordnung gelten.
What it is
Type what you have and what you need. Aliquot returns a prep protocol with every substitution shown, and the relevant hazard riding along. The arithmetic runs in the browser, so it keeps working in a cold room once the page has loaded. Core tools need no account. 57 calculators sit behind this link, including a unit converter.
Straight to a tool: Simple dilution · Molarity, mass and volume conversion · Buffer / pH · Unit converter · Lab safety
How to open it
- Open aliquotchem.com/pilot — this page — on a phone or laptop.
- Tap a calculator below, or go straight to aliquotchem.com/d/dilution, /d/molarity-mass, or /d/buffer.
- Optional: Add to Home Screen. After one load with signal, it keeps working offline. Numbers are not uploaded.
What this is not
- Not an electronic lab notebook. It does not replace an ELN, a LIMS, or a paper book.
- Not a safety authority. The safety data sheet, PPE, and your institution's rules remain the authority. Hazard notes are reminders.
- Not validated, certified, or qualified for GxP or any regulated system of record.
- Not for sale this week. Payments are closed. This is a no-cost pilot: no invoice, no seats, no licence gate on the calculators.
If you are setting this up for a group
Send aliquotchem.com/pilot. There is no IT ticket and no sign-up. People who open a calculator once with signal can keep using it downstairs. If you run a named practical rather than a shared bench, there are also pages for named practicals.