What is the NOAEL for Mercuric oxide?
Mercuric oxide has 4 NOAEL studies in the database. The lowest reported value is IY191986AO UNII. Source: openFDA substances.
NOAEL Data
Cosmetic Ingredient
Mercuric oxide
Also known as: Mercury(II) oxide, Mercury oxide (HgO), Caswell No. 544A, EPA Pesticide Chemical Code 052102, Gelbes quecksilberoxyd (+10 more)
CAS 21908-53-2
Mercuric oxide (CAS 21908-53-2) is a chemical substance. Key regulatory status: 1 regulatory/inventory list, cosmetic ingredient cross-reference; source data from EPA ToxValDB, EPA CPDat, AICIS, ILO ICSC.
Cross-Vertical Regulatory Divergence
Mercuric oxide is prohibited in EU cosmetics but has active industrial GHS classifications (H315, H317, H319, H335, H360, H370, H300, H311).
SOURCE
Cross-vertical comparison
Cosmetics: ingredients.eu_status; Chemicals: ghs_classifications.signal_word/hazard_statement_code
SOURCE
noael studies public
NOAEL studies
4
SOURCE
chemical inventory jurisdictions
Regulatory lists
1
SOURCE
eu clp annex vi
GHS signal
Not classified
Chemical Identity
CAS, identifiers, formula, and alternate names for the matched substance record.
SOURCE
DSSTox identifiers
21 fields
Name
Mercuric oxide
CAS Number
21908-53-2
DTXSID
DTXSID4042125
Molecular Formula
Hg.O
InChI Key
UKWHYYKOEPRTIC-UHFFFAOYSA-N
Monoisotopic Mass
217.965558
Synonyms
Mercury(II) oxideMercury oxide (HgO)Caswell No. 544AEPA Pesticide Chemical Code 052102Gelbes quecksilberoxydHydrargyrum oxid flavNatural montroyditeOxide mercurique jauneOxido amarillo de mercurioRed oxide of mercuryRed PrecipitateYellow oxide of mercury
ICSC Chemical Safety
International Chemical Safety Card hazard and exposure summary.
SOURCE
ILO/WHO International Chemical Safety Cards
1 records
| Field | Value |
|---|---|
| GHS Signal Word | DANGER |
| GHS Hazard Statements | Fatal if swallowed Toxic in contact with skin May cause damage to kidneys May cause damage to nervous system and kidneys through prolonged or repeated exposure Very toxic to aquatic life with long lasting effects |
| Short-term Effects | The substance is mildly irritating to the eyes, skin and respiratory tract. The substance may cause effects on the kidneys. Medical observation is indicated. |
| Long-term Effects | The substance may have effects on the kidneys, central nervous system and peripheral nervous system. This may result in ataxia, sensory and memory disturbances, tremors, muscle weakness and kidney impairment. |
| Routes of Exposure | The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. |
Functional Uses
Industrial and product-use categories associated with this substance.
SOURCE
EPA CPDat
1 records
Biocide
Regulatory Lists
Inventory, screening, and regulatory list matches from public chemical databases.
SOURCE
EPA CPDat
1 records
| List | Keyword | Source |
|---|---|---|
| active_ingredient; Europe; Pesticides | European Commission | CPCat |
NOAEL Studies
Toxicology endpoints rendered from public NOAEL study rows.
SOURCE
NOAEL studies
Showing 4 of 4 studies
| Value | Unit | Endpoint | Route | Species | Source |
|---|---|---|---|---|---|
| IY191986AO | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| IY191986AO | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| IY191986AO | UNII | FDA UNII substance identifier | - | - | openFDA substances |
| IY191986AO | UNII | FDA UNII substance identifier | - | - | openFDA substances |
Showing 4 of 4 studies
Australian Status (AICIS)
Australian industrial chemicals inventory status and applicable conditions.
SOURCE
AICIS inventory
1 records
Inventory Status
listed
Cosmetic Safety Profile
Same-CAS cosmetic ingredient record for cross-vertical context.
SOURCE
CosIng / Ingredients DB
EU Status
prohibited
Max
-
Category
Preservative
Frequently Asked Questions
What regulatory lists include Mercuric oxide?
Mercuric oxide appears on 1 regulatory/inventory list including active_ingredient; Europe; Pesticides. Source: EPA CPDat.
Is Mercuric oxide used in cosmetics?
Yes, Mercuric oxide is also indexed as a cosmetic ingredient under the name Mercuric Oxide. View the full cosmetic safety profile on the ingredient page for detailed safety data, SCCS opinions, and regulatory status.
Where does the safety data for Mercuric oxide come from?
Safety data is sourced from EPA ToxValDB, EPA CPDat, AICIS (Australian Industrial Chemicals Introduction Scheme), EPA DSSTox, ILO/WHO ICSC, CosIng / Ingredients DB. All data traces to primary regulatory sources and is updated from official government databases.
Does Mercuric oxide have different safety status in cosmetics vs industrial chemicals?
Mercuric oxide is prohibited in EU cosmetics but has active industrial GHS classifications (H315, H317, H319, H335, H360, H370, H300, H311).
Is Mercuric oxide used outside industrial chemicals?
Mercuric oxide also appears in cosmetics databases.