# AMMONIUM NITRATE-PHOSPHATE MIXTURE — NFPA 704 fire diamond ratings by chemical

For AMMONIUM NITRATE-PHOSPHATE MIXTURE, cas number is 57608-40-9; health (blue) is 0; flammability (red) is 0; instability (yellow) is 3; special (white) is OX, verified against its source on 2026-08-06.

- **Chemical:** AMMONIUM NITRATE-PHOSPHATE MIXTURE _(verified: appears in the quote below)_
- **CAS number:** 57608-40-9 _(verified: appears in the quote below)_
- **Health (blue):** 0 _(verified: appears in the quote below)_
- **Flammability (red):** 0 _(verified: appears in the quote below)_
- **Instability (yellow):** 3 _(verified: appears in the quote below)_
- **Special (white):** OX _(verified: appears in the quote below)_
- **What the rating means:** Health | 0 | No hazard beyond that of ordinary combustible material. | Flammability | 0 | Will not burn under typical fire conditions. | Instability | 3 | Capable of detonation or explosive decomposition or explosive reaction but requires a strong initiating source or must be heated under confinement before initiation. | Special | OX | Possesses oxidizing properties. | Note: NFPA ratings shown are for ammonium nitrate, CAS number 6484-52-2. _(verified: appears in the quote below)_

## What the source says

> Health | 0 | No hazard beyond that of ordinary combustible material. | Flammability | 0 | Will not burn under typical fire conditions. | Instability | 3 | Capable of detonation or explosive decomposition or explosive reaction but requires a strong initiating source or must be heated under confinement before initiation. | Special | OX | Possesses oxidizing properties. | Note: NFPA ratings shown are for ammonium nitrate, CAS number 6484-52-2.

## Source

- https://cameochemicals.noaa.gov/chemical/100

Last verified: 2026-08-06. Review by: 2028-08-05.
Part of [NFPA 704 fire diamond ratings by chemical](https://referencesource.org/nfpa-704-hazard-ratings/).