Table 2.
Optimal pH for precipitation of oxalates [23].
| Metal (H2C2O4) | pH |
|---|---|
| Cu2+ | 1.2–1.6 |
| Ca2+ | >4.9 |
| Sr2+ | >5.1 |
| Pb2+ | 1.5–3.0 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.