Substance profile
Lead hydrogen arsenate
Lead hydrogen arsenate is white monoclinic crystals and is odorless.
01 · Identification
What Lead hydrogen arsenate is
Lead hydrogen arsenate is white monoclinic crystals and is odorless. Its molecular formula is AsHO4Pb and its molecular weight is 347 g/mol. It melts at 280 °C, is practically insoluble in water.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
02 · Identifiers
Lead hydrogen arsenate identifiers and molecular data
Lead hydrogen arsenate CAS number and EC number
Lead hydrogen arsenate molecular formula and molecular weight
03 · GHS classification
Lead hydrogen arsenate hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Lead hydrogen arsenate pictograms and signal word
Lead hydrogen arsenate hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 3 | H301 | GHS06 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 3 | H331 | GHS06 |
| 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 hydrogen arsenate 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. |
| H331 | Toxic if inhaled. |
| H301 | Toxic if swallowed. |
| 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 hydrogen arsenate. 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 hydrogen arsenate
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 hydrogen arsenate 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 hydrogen arsenate precautionary statements
CLP Annex VI assigns 15 precautionary statements to Lead hydrogen arsenate. 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 hydrogen arsenate 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 хидрогенарсенат |
| Spanish español | Hidrogenoarseniato de plomo |
| Czech čeština | hydrogenarseničnan olovnatý |
| Danish dansk | blyhydrogenarsenat |
| German Deutsch | Bleihydrogenarsenat |
| Estonian eesti | pliivesinikarsenaat |
| Greek ελληνικά | όξινος αρσενικικός μόλυβδος |
| English English | lead hydrogen arsenate |
| French français | hydrogénoarsénate de plomb |
| Croatian hrvatski | olovov hidrogen arsenat |
| Italian italiano | idrogenoarsenato di piombo |
| Latvian latviešu | svina hidrogēnarsenāts |
| Lithuanian lietuvių | švino vandenilio arsenatas |
| Hungarian magyar | ólom-hidrogén-arzenát |
| Maltese Malti | arsenat tal-idroġenu taċ-ċomb |
| Dutch Nederlands | lood(II)waterstofarsenaat |
| Polish polski | wodoroarsenian(V) ołowiu(II) |
| Portuguese português | hidrogenoarseniato de chumbo |
| Romanian română | arsenat acid de plumb |
| Slovak slovenčina | hydrogenarzeničnan olovnatý |
| Slovenian slovenščina | svinčev hidrogen arzenat |
| Finnish suomi | lyijyvetyarsenaatti |
| Swedish svenska | blyvätearsenat |
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 hydrogen arsenate GHS label elements
Everything CLP Annex VI fixes for Lead hydrogen arsenate, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Lead hydrogen arsenate
- 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.
- Toxic if inhaled.
- Toxic if swallowed.
- 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.
- Use only outdoors or in a well-ventilated area.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF INHALED:
- IF exposed or concerned:
- Immediately call a POISON CENTER/doctor/…
- Get medical advice/attention.
- Get medical advice/attention if you feel unwell.
- 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 Lead hydrogen arsenate in the GHS label constructor →
07 · Health hazards
Lead hydrogen arsenate health hazards and exposure limits
Lead hydrogen arsenate carcinogenicity classification
Classification of carcinogenicity: 1) evidence in humans: sufficient; 2) evidence in animals: limited. Overall summary evaluation of carcinogenic risk to humans is Group 1: Carcinogenic to humans. NOTE: This evaluation applies to the group of chemicals as a whole and not necessarily to all individual chemicals within the group. /Arsenic and arsenic compounds/
Source: Hazardous Substances Data Bank (HSDB)
Classification-: A; human carcinogen. Basis-Based on sufficient evidence from human data. An increased lung cancer mortality was observed in multiple human populations exposed primarily through inhalation. Also, increased mortality from multiple internal organ cancers (liver, kidney, lung, and bladder) and an increased incidence of skin cancer were observed in populations consuming drinking water high in inorganic arsenic. /Inorganic Arsenic/ /Based on former classification system/
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 hydrogen arsenate occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 0.01 [mg/m3], as As (0.05 mg/m3, as Pb) | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 5.0 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 5 mg/cu m (as As); NIOSH considers arsenic (inorganic compounds, as As) to be a potential occupational carcinogen. /Arsenic (inorganic compounds, as As)/ | 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 hydrogen arsenate 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 hydrogen arsenate melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 280 °C (536 °F) | decomposes, decomposes | HSDB |
Lead hydrogen arsenate density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 5.943 g/cm³ | HSDB | |
| 5.8 g/cm³ | ICSC | ||
| 5.943 g/cm³ | at 25 °C | DOE PAC |
Lead hydrogen arsenate solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Insoluble in water | HSDB | |
| Soluble in nitric acid, alkalies | HSDB | ||
| Solubility in water, g/100ml: 0.0003 (none) | ICSC |
Lead hydrogen arsenate autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | Not flammable (USCG, 1999) | CAMEO |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Lead hydrogen arsenate 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.
Lead hydrogen arsenate fire potential
Not flammable.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Lead hydrogen arsenate storage and handling
Lead hydrogen arsenate safe storage
Store only in original container. Cool. Dry. Well closed. Keep in a well-ventilated room. Separated from strong oxidants, strong acids and food and feedstuffs. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Lead hydrogen arsenate storage conditions
Store in a secure poison location. ... Lead arsenate must be stored to avoid contact with oxidizers (such as perchlorates, peroxides, permanganates, chlorates and nitrates) and chemically active metals (such as potassium, sodium, magnesium, and zinc), since violent reactions occur. Avoid the presence of acids since arsine, a very deadly gas, is released in the presence of acid or acid mist. A regulated, marked area should be established where this chemical is handled, used, or stored in compliance with OSHA Standard 1910.1045.
Source: Hazardous Substances Data Bank (HSDB)
Lead hydrogen arsenate incompatible materials
Violent reactions occur from contact with oxidizers, chemically active metals, strong acids. Acids and acid mists cause the release of arsine, a deadly gas.
Source: Hazardous Substances Data Bank (HSDB)
Lead hydrogen arsenate reactivity
LEAD ARSENATE has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Lead hydrogen arsenate in the storage compatibility matrix →
11 · Questions
Lead hydrogen arsenate — frequently asked questions
What is the CAS number of Lead hydrogen arsenate?
The CAS number of Lead hydrogen arsenate is 7784-40-9. Its EC number is 232-064-2.
What is the chemical formula of Lead hydrogen arsenate?
The molecular formula of Lead hydrogen arsenate is AsHO4Pb and its molecular weight is 347 g/mol.
What does a Lead hydrogen arsenate label have to show?
Under CLP Annex VI the label for Lead hydrogen arsenate carries the pictograms Skull and crossbones, Health hazard and Environment and the signal word is Danger.
Is Lead hydrogen arsenate flammable?
CLP Annex VI assigns Lead hydrogen arsenate 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 hydrogen arsenate a carcinogen?
Yes. CLP Annex VI classifies Lead hydrogen arsenate as a category 1A or 1B carcinogen and assigns it H350: may cause cancer.
What is the exposure limit for Lead hydrogen arsenate?
The US occupational exposure limit reported for Lead hydrogen arsenate is 0.01 [mg/m3], as As (0.05 mg/m3, as Pb) (Haz-Map, Information on Hazardous Chemicals and Occupational Diseases). 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 melting point of Lead hydrogen arsenate?
The melting point reported for Lead hydrogen arsenate is 280 °C (536 °F), decomposes, decomposes (HSDB).
How should Lead hydrogen arsenate be stored?
Store in a secure poison location. ... Lead arsenate must be stored to avoid contact with oxidizers (such as perchlorates, peroxides, permanganates, chlorates and nitrates) and chemically active metals (such as potassium, sodium, magnesium, and zinc), since violent reactions occur. Avoid the presence of acids since arsine, a very deadly gas, is released in the presence of acid or acid mist. A regulated, marked area should be established where this chemical is handled, used, or stored in compliance with OSHA Standard 1910.1045. (Hazardous Substances Data Bank (HSDB))
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