Substance profile
Lead Chromate
Lead Chromate is a yellow or orange-yellow powder and is odorless.
01 · Identification
What Lead Chromate is
Lead Chromate is a yellow or orange-yellow powder and is odorless. It boils at 250 °C, melts at 844 °C.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
02 · Identifiers
Lead Chromate identifiers and molecular data
Lead Chromate CAS number and EC number
Lead Chromate molecular formula and molecular weight
03 · GHS classification
Lead Chromate hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Lead Chromate pictograms and signal word
Lead Chromate hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Carcinogenicity GHS chapter 3.6 | Category 1A or 1B | H350 | GHS08 |
| Specific target organ toxicity - repeated exposure GHS chapter 3.9 | Category 2 | H373 | GHS08 |
| 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.
Lead Chromate hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H360Df | May damage the unborn child. Suspected of damaging fertility. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Lead Chromate. 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 Lead Chromate
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 Lead Chromate 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
Lead Chromate precautionary statements
CLP Annex VI assigns 10 precautionary statements to Lead Chromate. 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
Lead Chromate 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 | оловен хромат |
| Spanish español | Cromato de plomo |
| Czech čeština | chroman olovnatý |
| Danish dansk | blychromat |
| German Deutsch | Bleichromat |
| Estonian eesti | pliikromaat |
| Greek ελληνικά | χρωμικός μόλυβδος |
| English English | lead chromate |
| French français | chromate de plomb |
| Croatian hrvatski | olovov kromat |
| Italian italiano | cromato di piombo |
| Latvian latviešu | svina hromāts |
| Lithuanian lietuvių | švino chromatas |
| Hungarian magyar | ólom-kromát |
| Maltese Malti | kromat taċ-ċomb |
| Dutch Nederlands | loodchromaat |
| Polish polski | chromian(VI) ołowiu(II) chromian ołowiawy |
| Portuguese português | cromato de chumbo |
| Romanian română | cromat de plumb |
| Slovak slovenčina | chróman olovnatý |
| Slovenian slovenščina | svinčev kromat |
| Finnish suomi | lyijykromaatti |
| Swedish svenska | blykromat |
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
Lead Chromate GHS label elements
Everything CLP Annex VI fixes for Lead Chromate, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Lead Chromate
- May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- May damage the unborn child. Suspected of damaging fertility.
- May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Obtain special instructions before use.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF exposed or concerned:
- Get medical advice/attention.
- Get medical advice/attention if you feel unwell.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Lead Chromate in the GHS label constructor →
07 · Health hazards
Lead Chromate health hazards and exposure limits
Lead Chromate hazard summary
Despite the limited evidence for lead chromate causing cancer in humans, there is ample evidence in humans and animals that all Cr(VI) compounds, both soluble and insoluble, are capable of causing lung cancer. Lead poisoning can occur in exposed workers. [ACGIH] See Lead and linked occupational diseases. See Chromium and linked occupational diseases.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Lead Chromate carcinogenicity classification
Lead and lead compounds are reasonably anticipated to be human carcinogens based on limited evidence of carcinogenicity from studies in humans and sufficient evidence of carcinogenicity from studies in experimental animals. /Lead and Lead compounds/
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.
Lead Chromate occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 5 µg/m³ [2.5 µg/m³ Action Level] (as CrVI) | Occupational Safety and Health Administration (OSHA) |
| REL | 0.0002 mg/m³ (8 hr TWA) | Occupational Safety and Health Administration (OSHA) |
| IDLH | 15 mg Cr(VI)/m3 ; A potential occupational carcinogen. (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 100 mg/cu m /Lead (as Pb)/ | Hazardous Substances Data Bank (HSDB) |
| IDLH | 250 mg/cu m (as Cr(II)). /Chromium(II) compounds (as Cr)/ | Hazardous Substances Data Bank (HSDB) |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · Physical and chemical properties
Lead Chromate 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.
Lead Chromate boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 250 °C (482 °F) | decomposes | OSHA |
| Decomposes | decomposes | HSDB | |
| Decomposes (NTP, 1992) | decomposes | CAMEO |
Lead Chromate melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 844 °C (1551.2 °F) | HSDB | |
| 843.89 °C (1551 °F) | CAMEO |
Lead Chromate density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 6.12 g/cm³ | HSDB | |
| 6.3 g/cm³ | ICSC | ||
| 6.12 g/cm³ | at 25 °C | DOE PAC |
Lead Chromate solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | In water, 0.2 mg/L | HSDB | |
| In water, 0.17 mg/L at 20 °C | at 20 °C | HSDB | |
| In water, 0.058 mg/L at 25 °C | at 25 °C | HSDB |
Lead Chromate vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0 mmHg | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Lead Chromate storage and handling
Lead Chromate safe storage
Separated from food and feedstuffs and incompatible materials. 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)
Lead Chromate storage conditions
Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place. Storage class (TRGS 510): Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
Source: Hazardous Substances Data Bank (HSDB)
Lead Chromate incompatible materials
Incompatible materials: Organic materials, powdered metals
Source: Hazardous Substances Data Bank (HSDB)
Lead Chromate reactivity
LEAD CHROMATE reacts violently with ferric ferrocyanide (NTP, 1992). The mixture of sulfur and the chromate is pyrophoric, as is the case of tantalum and the chromate. Under certain conditions, combinations of dry mixtures of lead chromate pigment and azo-dyes (nitrobenzeneazo derivatives) may lead to explosions. When these materials are intimately mixed, violent reactions may result [Loss Prev. Bull., 1978, (022), 117].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Lead Chromate in the storage compatibility matrix →
10 · Questions
Lead Chromate — frequently asked questions
What is the CAS number of Lead Chromate?
The CAS number of Lead Chromate is 7758-97-6. Its EC number is 231-846-0.
What does a Lead Chromate label have to show?
Under CLP Annex VI the label for Lead Chromate carries the pictograms Health hazard and Environment and the signal word is Danger.
Is Lead Chromate flammable?
CLP Annex VI assigns Lead Chromate no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it.
Is Lead Chromate a carcinogen?
Yes. CLP Annex VI classifies Lead Chromate as a category 1A or 1B carcinogen and assigns it H350: may cause cancer.
What is the exposure limit for Lead Chromate?
The US occupational exposure limit reported for Lead Chromate is 5 µg/m³ [2.5 µg/m³ Action Level] (as CrVI) (Occupational Safety and Health Administration (OSHA)). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the boiling point of Lead Chromate?
The boiling point reported for Lead Chromate is 250 °C (482 °F), decomposes (OSHA).
What is the melting point of Lead Chromate?
The melting point reported for Lead Chromate is 844 °C (1551.2 °F) (HSDB).
How should Lead Chromate be stored?
Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place. Storage class (TRGS 510): Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Lead Chromate
Keep going: substances starting with L, or search the whole database by name, CAS number, pictogram or signal word.