Substance profile
Zinc powder - zinc dust (pyrophoric)
Zinc powder - zinc dust (pyrophoric) is a bluish-white, lustrous metal; distorted hexagonal close-packed structure.
01 · Identification
What Zinc powder - zinc dust… is
Zinc powder - zinc dust (pyrophoric) is a bluish-white, lustrous metal; distorted hexagonal close-packed structure. Its molecular formula is Zn and its molecular weight is 65.4 g/mol. It boils at 907 °C, melts at 420 °C, is soluble in water.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.
02 · Identifiers
Zinc powder - zinc dust… identifiers and molecular data
Zinc powder - zinc dust… CAS number and EC number
Zinc powder - zinc dust… molecular formula and molecular weight
03 · GHS classification
Zinc powder - zinc dust… hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Zinc powder - zinc dust… pictograms and signal word
Zinc powder - zinc dust… hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Pyrophoric liquids or Pyrophoric solids | Category 1 | H250 | GHS02 |
| In contact with water emits flammable gases GHS chapter 2.12 | Category 1 | H260 | GHS02 |
| 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 powder - zinc dust… hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H250 | Catches fire spontaneously if exposed to air. |
| H260 | In contact with water releases flammable gases which may ignite spontaneously. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Zinc powder - zinc dust…. 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 powder - zinc dust…
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 powder - zinc… 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 powder - zinc dust… precautionary statements
CLP Annex VI assigns 3 precautionary statements to Zinc powder - zinc dust…. 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.
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 powder - zinc dust… 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 | цинк на прах — цинкова пепел (пирофорни) |
| Spanish español | Cinc en polvo (pirofórico) |
| Czech čeština | zinek práškový (pyroforický) |
| Danish dansk | zinkpulver — zinkstøv (ustabiliseret) |
| German Deutsch | Zinkpulver — Zinkstaub (pyrophor) |
| Estonian eesti | tsingipulber – tsingitolm (pürofoorne) |
| Greek ελληνικά | κόνις ψευδαργύρου — σκόνη ψευδαργύρου (πυροφόρος) |
| English English | zinc powder — zinc dust (pyrophoric) |
| French français | poudre de zinc — poussière de zinc (pyrophorique) |
| Croatian hrvatski | cinkov prah – cinkova prašina (piroforna) |
| Italian italiano | zinco in polvere (piroforica) |
| Latvian latviešu | cinka pulveris — cinka putekļi (pirofori) |
| Lithuanian lietuvių | cinko milteliai – cinko dulkės (piroforas) |
| Hungarian magyar | cinkpor (pirofóros) |
| Maltese Malti | trab taż-żingu — frak taż-żingu (piroforiku) |
| Dutch Nederlands | zinkpoeder — zinkstof (pyrofoor) |
| Polish polski | proszek cynkowy – pył cynkowy (piroforyczny) |
| Portuguese português | zinco em pó — pó de zinco (pirofórico) |
| Romanian română | pudră de zinc — praf de zinc (piroforic) |
| Slovak slovenčina | práškový zinok (pyroforický) |
| Slovenian slovenščina | cinkov prah – cinkov prah (piroforen) |
| Finnish suomi | sinkkijauhe, sinkkipöly (stabiloimaton) |
| Swedish svenska | zinkpulver – zinkdamm (pyrofort) |
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 powder - zinc dust… GHS label elements
Everything CLP Annex VI fixes for Zinc powder - zinc dust…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Zinc powder - zinc dust…
- Catches fire spontaneously if exposed to air.
- In contact with water releases flammable gases which may ignite spontaneously.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Avoid release to the environment.
- 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 powder - zinc dust… in the GHS label constructor →
07 · Health hazards
Zinc powder - zinc dust… health hazards and exposure limits
Zinc powder - zinc dust… hazard summary
Zinc is one of the most common elements in the earth's crust. It is found in air, soil, and water, and is present in all foods. Pure zinc is a bluish-white shiny metal. Zinc has many commercial uses as coatings to prevent rust, in dry cell batteries, and mixed with other metals to make alloys like brass, and bronze. A zinc and copper alloy is used to make pennies in the United States. Zinc combines with other elements to form zinc compounds. Common zinc compounds found at hazardous waste sites include zinc chloride, zinc oxide, zinc sulfate, and zinc sulfide. Zinc compounds are widely used in industry to make paint, rubber, dyes, wood preservatives, and ointments.
Source: Agency for Toxic Substances and Disease Registry (ATSDR)
Zinc powder - zinc dust… carcinogenicity classification
Under the conditions of this 2-year dietary study, there was equivocal evidence of carcinogenic activity (see a summary of the Peer Review Panel comments in Appendix I) of diets deficient in zinc in male Hsd:Sprague Dawley SD rats based on higher incidences of adenoma of the pancreas and increased incidences of animals with multiple pancreatic adenomas. There was no evidence of carcinogenic activity of diets deficient in zinc (3.5 or 7 ppm) in female Hsd:Sprague Dawley SD rats. There was no evidence of carcinogenic activity of diets containing excess zinc (250 or 500 ppm) in male or female Hsd:Sprague Dawley SD rats.
Source: US National Toxicology Program · TR-592: Toxicology and Carcinogenesis Study of Dietary Zinc (CASRN 5263-02-5) in Sprague Dawley Rats (Hsd:Sprague Dawley SD) (Feed Studies) (2019 )
Cancer Classification: Group D Not Classifiable as to Human Carcinogenicity
Source: Hazardous Substances Data Bank (HSDB)
CLASSIFICATION: D; not classifiable as to human carcinogenicity. BASIS FOR CLASSIFICATION: No human data and no animal data. HUMAN CARCINOGENICITY DATA: None. ANIMAL CARCINOGENICITY DATA: None.
Source: Hazardous Substances Data Bank (HSDB)
An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.
08 · Physical and chemical properties
Zinc powder - zinc dust… 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 powder - zinc dust… boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 907 °C (1664.6 °F) | HSDB | |
| 907 °C (1664.6 °F) | at 760 mmHg | DOE PAC |
Zinc powder - zinc dust… melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 419.53 °C (787.2 °F) | HSDB | |
| 419 °C (786.2 °F) | ICSC |
Zinc powder - zinc dust… density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 7.1 g/cm³ | ICSC | |
| 7.133 g/cm³ | at 25 °C | HSDB | |
| 7.134 g/cm³ | at 25 °C | DOE PAC |
Zinc powder - zinc dust… solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in acids and alkalies; insoluble in water | HSDB | |
| Solubility in water: reaction | ICSC |
Zinc powder - zinc dust… vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1.103e-8 mmHg | at 127 °C | HSDB |
Zinc powder - zinc dust… autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 460 °C (860 °F) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Zinc powder - zinc dust… 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 powder - zinc dust… fire potential
Zinc powder or dust in contact with water or damp air evolves hydrogen. The heat of reaction is sufficient that the hydrogen may ignite.
Source: Hazardous Substances Data Bank (HSDB)
Fire and explosion
A cloud of zinc dust generated by sieving the hot dried material exploded violently, apparently after initiation by a spark from the percussive sieve-shaking mechanism ... The possibility of explosions of zinc dust suspended in air is presented as a serious hazard ...
Source: HSDB
10 · Handling and storage
Zinc powder - zinc dust… storage and handling
Zinc powder - zinc dust… safe storage
Fireproof. Well closed. Separated from incompatible materials and : see Chemical Dangers. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Zinc powder - zinc dust… storage conditions
Fireproof. Separated from acids, bases oxidants. Dry. /Zinc powder/
Source: Hazardous Substances Data Bank (HSDB)
Zinc powder - zinc dust… incompatible materials
Incompatible with NH4NO3, barium oxide, Ba(NO3)2, Cadmium, CS2, chlorates, Cl2, CrO3, (ethyl acetoacetate + tribromoneopentyl alcohol), F2, hydrazine mononitrate, hydroxylamine, Pb(N3)2, (Mg + Ba(NO3)2 + BaO2), MnCl2, HNO3, performic acid, KClO3, KNO3, K2O2, Selenium, NaClO3, Na2O2, Sulfur, Te, water, (NH4)2S, As2O3, CS2, CaCl2, NaOH, chlorinated rubber, catalytic metals, halocarbons, o-nitroanisole, nitrobenzene, nonmetals, oxidants, paint primer base, pentacarbonyliron, transition metal halides, seleninyl bromide.
Source: Hazardous Substances Data Bank (HSDB)
Zinc powder - zinc dust… reactivity
In the presence of moisture, it may ignite spontaneously on contact with air; reacts violently with oxidants and powdered sulfur, causing fire and explosion hazards. [Handling Chemicals Safely 1980. p. 966].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Zinc powder - zinc dust… in the storage compatibility matrix →
11 · Questions
Zinc powder - zinc dust… — frequently asked questions
What is the CAS number of Zinc powder - zinc dust…?
The CAS number of Zinc powder - zinc dust… is 7440-66-6. Its EC number is 231-175-3.
What is the chemical formula of Zinc powder - zinc dust…?
The molecular formula of Zinc powder - zinc dust… is Zn and its molecular weight is 65.4 g/mol.
What does a Zinc powder - zinc dust… label have to show?
Under CLP Annex VI the label for Zinc powder - zinc dust… carries the pictograms Flame and Environment and the signal word is Danger.
Is Zinc powder - zinc dust… flammable?
Yes. CLP Annex VI assigns Zinc powder - zinc dust… H250 and H260 — catches fire spontaneously if exposed to air.
Is Zinc powder - zinc dust… a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Zinc powder - zinc dust…. 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 powder - zinc dust…?
The boiling point reported for Zinc powder - zinc dust… is 907 °C (1664.6 °F) (HSDB).
What is the melting point of Zinc powder - zinc dust…?
The melting point reported for Zinc powder - zinc dust… is 419.53 °C (787.2 °F) (HSDB).
How should Zinc powder - zinc dust… be stored?
Fireproof. Separated from acids, bases oxidants. Dry. /Zinc powder/ (Hazardous Substances Data Bank (HSDB))
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