A power that can be added to compost to make fertiliser.
5 gp
Updated 1m ago
Saltpetre is currently trading at 5 gp on the Grand Exchange and is up 66.7% over the last 24 hours. Current instant-buy and instant-sell prices are 4 gp and 5 gp.
Category: other · Members only · View on OSRS Wiki
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Saltpetre is a members-only item on the OSRS Grand Exchange in the other category.
In-game examine text: "A power that can be added to compost to make fertiliser."
It has a Grand Exchange buy limit of 13,000 every four hours, a high alchemy value of 3 gp, and item ID 13421.
Margin: 1 gp per flip
Volume: 907,369 trades / 24h
Buy limit: 13000 every 4 hours
Max profit/cycle: 13.0k gp
Verdict: High margin with healthy liquidity
Saltpetre shows an active flip setup with a margin of +1 gp and 907,369 trades over the last 24 hours.
At the buy limit of 13,000 every four hours, max profit per cycle is about 13.0k gp — high margin with healthy liquidity.
| Time | Buy avg | Buy vol | Sell avg | Sell vol | Margin |
|---|---|---|---|---|---|
| 24m ago(8/5/2026) | 3 | 5 | 5 | 1000 | 2 |
| 29m ago(8/5/2026) | 3 | 10 | — | – | – |
| 34m ago(8/5/2026) | 3 | 8 | 3 | 675 | 0 |
| 44m ago(8/5/2026) | — |
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| – |
| 4 |
| 37 |
| – |
| 54m ago(8/5/2026) | 3 | 4213 | 4 | 763 | 1 |
| 59m ago(8/5/2026) | — | – | 3 | 1448 | – |
| 1h ago(8/5/2026) | 3 | 104 | — | – | – |
| 1h ago(8/5/2026) | 3 | 444 | — | – | – |
| 1h ago(8/5/2026) | 3 | 32 | 3 | 2813 | 0 |
| 1h ago(8/5/2026) | 3 | 1942 | 3 | 2114 | 0 |
| 1h ago(8/5/2026) | 4 | 9731 | — | – | – |
| 1h ago(8/5/2026) | — | – | 4 | 382 | – |
| 1h ago(8/5/2026) | 4 | 1456 | — | – | – |
| 1h ago(8/5/2026) | — | – | 4 | 47 | – |
| 2h ago(8/5/2026) | 4 | 27 | — | – | – |
| 2h ago(8/5/2026) | 2 | 15 | 4 | 706 | 2 |
| 2h ago(8/5/2026) | 2 | 1 | 2 | 3 | 0 |
| 2h ago(8/5/2026) | 2 | 3 | 4 | 76 | 2 |
| 2h ago(8/5/2026) | 2 | 2152 | — | – | – |
| 2h ago(8/5/2026) | 2 | 697 | — | – | – |
| 2h ago(8/5/2026) | 2 | 25369 | 2 | 53 | 0 |
| 2h ago(8/5/2026) | — | – | 4 | 3 | – |
| 2h ago(8/5/2026) | — | – | 4 | 21310 | – |
| 2h ago(8/5/2026) | — | – | 2 | 9 | – |
Holy mould
6 gp