Substance profile
Zinc Phosphide
Zinc Phosphide is dark gray tetragonal crystals; lustrous or dull powder with a faint phosphorus odor.
01 · Identification
What Zinc Phosphide is
Zinc Phosphide is dark gray tetragonal crystals; lustrous or dull powder with a faint phosphorus odor. It boils at 1100 °C, melts at 1193 °C.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.
02 · Identifiers
Zinc Phosphide identifiers and molecular data
Zinc Phosphide CAS number and EC number
Zinc Phosphide molecular formula and molecular weight
Other names for Zinc Phosphide
- trizinc diphosphide
03 · GHS classification
Zinc Phosphide hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Zinc Phosphide pictograms and signal word
Zinc Phosphide hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| In contact with water emits flammable gases GHS chapter 2.12 | Category 1 | H260 | GHS02 |
| Acute toxicity - oral GHS chapter 3.1 | Category 1 or 2 | H300 | GHS06 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | GHS09 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 1 | H410 | GHS09 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Zinc Phosphide hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H260 | In contact with water releases flammable gases which may ignite spontaneously. |
| H300 | Fatal if swallowed. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Zinc Phosphide supplemental EU statements (EUH)
| Code | Statement |
|---|---|
| EUH029 | Contact with water liberates toxic gas. |
| EUH032 | Contact with acids liberates very toxic gas. |
This page lists only the codes assigned to Zinc Phosphide. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Zinc Phosphide
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Zinc Phosphide issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Zinc Phosphide precautionary statements
CLP Annex VI assigns 7 precautionary statements to Zinc Phosphide. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Disposal
What has to happen to the contents and the empty container.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Zinc Phosphide name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | трицинков дифосфид цинков фосфид |
| Spanish español | Difosfuro de tricinc fosfuro de cinc |
| Czech čeština | trizink-difosfid fosfid zinečnatý |
| Danish dansk | trizinkdiphosphid zincphosphid |
| German Deutsch | Trizinkdiphosphid Zinkphosphid |
| Estonian eesti | tritsinkdifosfiid tsinkfosfiid |
| Greek ελληνικά | διφωσφίδιο του τριψευδαργύρoυ φωσφορούχος ψευδάργυρος |
| English English | trizinc diphosphide zinc phosphide |
| French français | diphosphure de trizinc phosphure de zinc |
| Croatian hrvatski | tricinkov difosfid cinkov fosfid |
| Italian italiano | difosfuro di trizinco fosfuro di zinco |
| Latvian latviešu | tricinka difosfīds cinka fosfīds |
| Lithuanian lietuvių | tricinko difosfidas cinko fosfidas |
| Hungarian magyar | tricink-difoszfid cink-foszfid |
| Maltese Malti | difosfur tat-triżingu fosfur taż-żingu |
| Dutch Nederlands | trizinkdifosfide zinkfosfide |
| Polish polski | difosforek tricynku fosforek cynku(II) |
| Portuguese português | difosforeto de trizinco fosforeto de zinco |
| Romanian română | difosfură de trizinc fosfură de zinc |
| Slovak slovenčina | difosfid trizinočnatý fosfid zinočnatý |
| Slovenian slovenščina | tricinkov difosfid cinkov fosfid |
| Finnish suomi | trisinkkidifosfidi sinkkifosfidi |
| Swedish svenska | trizinkdifosfid zinkfosfid |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Zinc Phosphide GHS label elements
Everything CLP Annex VI fixes for Zinc Phosphide, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Zinc Phosphide
- In contact with water releases flammable gases which may ignite spontaneously.
- Fatal if swallowed.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Contact with water liberates toxic gas.
- Contact with acids liberates very toxic gas.
- Do not eat, drink or smoke when using this product.
- Avoid release to the environment.
- IF SWALLOWED:
- Immediately call a POISON CENTER/doctor/…
- Rinse mouth.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Zinc Phosphide in the GHS label constructor →
07 · Health hazards
Zinc Phosphide health hazards and exposure limits
Zinc Phosphide hazard summary
Phosphine is generated after the compound is inhaled or ingested. [CHRIS] Reacts slowly with water to form the highly toxic and flammable phosphine; Workers in a fish-processing plant were poisoned after the rodenticide come in contact with the acid brine used for curing fish. [HSDB] See PHOSPHIDES. See Phosphine.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Zinc Phosphide properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
Zinc Phosphide boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 1100 °C (2012 °F) | at 760 mmHg | CAMEO |
| 1100 °C (2012 °F) | ICSC |
Zinc Phosphide melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 1193 °C (2179.4 °F) | HSDB | |
| 420 °C (788 °F) | CAMEO |
Zinc Phosphide density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 4.55 g/cm³ | CAMEO | |
| 4.6 g/cm³ | ICSC | ||
| 4.55 g/cm³ | at 15 °C | HSDB |
Zinc Phosphide solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Slightly soluble in carbon disulfide, benzene; practically insoluble in alcohols | HSDB | |
| Practically insoluble in water, decomposes slowly | decomposes | HSDB | |
| Solubility in water: none, slowly decomposes | decomposes | ICSC |
Zinc Phosphide vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1e-7 mmHg | at 25 °C | DOE PAC |
| Negligible in the dry state | HSDB |
Zinc Phosphide corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Slightly corrosive to metals | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Zinc Phosphide fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Zinc Phosphide fire potential
Combustible solid.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Zinc Phosphide storage and handling
Zinc Phosphide safe storage
Separated from strong oxidants, acids and water. Dry. Cool. Keep in a well-ventilated room.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Zinc Phosphide storage conditions
Keep container tightly closed in a dry and well-ventilated place. Never allow product to get in contact with water during storage. Do not store near acids. Keep in a dry place. Storage class (TRGS 510): Hazardous materials, which set free flammable gases upon contact with water.
Source: Hazardous Substances Data Bank (HSDB)
Zinc Phosphide incompatible materials
Incompatible materials: Strong oxidizing agents. Keep away from water. Bases, acids.
Source: Hazardous Substances Data Bank (HSDB)
Zinc Phosphide reactivity
ZINC PHOSPHIDE is a reducing agent. They slowly generate flammable or noxious gases in contact with water. Phosphides react quickly upon contact with moisture or acids to give the very toxic gas phosphine; phosphides also can react vigorously with oxidizing materials. In general, materials in this group are incompatible with oxidizers such as atmospheric oxygen. They are violently incompatible with acids, particularly oxidizing acids.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Zinc Phosphide in the storage compatibility matrix →
11 · Transport
Zinc Phosphide UN number and transport classification
Transport classification is a separate system from the GHS classification above. It decides how a package is marked and how a load may be carried; it does not follow from the workplace label, and the workplace label does not follow from it. The entries below are linked by CAS number, never by name.
Zinc Phosphide under UN 1714 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| ZINC PHOSPHIDE | 4.3 | WT2 | I | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 4.3 is “Substances which, in contact with water, emit flammable gases” (ADR 2.1.1.1).
United States · 49 CFR 172.101 Hazardous Materials Table
| Proper shipping name (column 2) | Class or division | PG | Labels (column 6) |
|---|---|---|---|
| Zinc phosphide | 4.3 | I | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 4.3 is “Dangerous when wet material” (49 CFR 173.2).
12 · Questions
Zinc Phosphide — frequently asked questions
What is the CAS number of Zinc Phosphide?
The CAS number of Zinc Phosphide is 1314-84-7. Its EC number is 215-244-5.
What does a Zinc Phosphide label have to show?
Under CLP Annex VI the label for Zinc Phosphide carries the pictograms Flame, Skull and crossbones and Environment and the signal word is Danger.
Is Zinc Phosphide flammable?
Yes. CLP Annex VI assigns Zinc Phosphide H260 — in contact with water releases flammable gases which may ignite spontaneously.
Is Zinc Phosphide a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Zinc Phosphide. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the boiling point of Zinc Phosphide?
The boiling point reported for Zinc Phosphide is 1100 °C (2012 °F), at 760 mmHg (CAMEO).
What is the melting point of Zinc Phosphide?
The melting point reported for Zinc Phosphide is 1193 °C (2179.4 °F) (HSDB).
How should Zinc Phosphide be stored?
Keep container tightly closed in a dry and well-ventilated place. Never allow product to get in contact with water during storage. Do not store near acids. Keep in a dry place. Storage class (TRGS 510): Hazardous materials, which set free flammable gases upon contact with water. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Zinc Phosphide
Keep going: substances starting with Z, or search the whole database by name, CAS number, pictogram or signal word.