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Beryllium acetate

CAS No. 543-81-7 | PubChem CID 10981
Section 1. Identification
Chemical NameBeryllium acetate CAS No.543-81-7
Synonymsdiaceticacid berylliumsalt; berylliumacetate Chinese Name乙酸铍
Molecular FormulaCH6BeO Molecular Weight127.1
UN No.1566 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS06 · Acute Toxic GHS07 · Irritant GHS08 · Health Hazard GHS09 · Environmental Hazard
Hazard Statements H301H315H317H319H330H335H350H372H411
Precautionary Statements P203P260P261P264P264+P265P270P271P272P273P280P284P301+P316P302+P352P304+P340P305+P351+P338P316P318P319P320P321P330P332+P317P333+P317P337+P317P362+P364P391P403+P233P405P501

Section 2. Hazards Identification

H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]

H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]

H317 (100%): May cause an allergic skin reaction [Warning Sensitization, Skin]

H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H330 (100%): Fatal if inhaled [Danger Acute toxicity, inhalation]

H335 (97.6%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

H350 (97.6%): May cause cancer [Danger Carcinogenicity]

H372 (100%): Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

H411 (100%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

P203, P260, P261, P264, P264+P265, P270, P271, P272, P273, P280, P284, P301+P316, P302+P352, P304+P340, P305+P351+P338, P316, P318, P319, P320, P321, P330, P332+P317, P333+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 42 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Section 8. Exposure Controls / Personal Protection

0.002 [mg/m3], as Be, Ceiling(OSHA) = 0.005 mg/m3, as Be(0.025 mg/m3,as Be,for 30 min.peak per 8-hr shift)

4.0 [mg/m3], as Be

0.00005 [mg/m3], as Be, inhalable fraction

Chronic Oral: 0.002 mg/kg/day (L134)

Section 9. Physical and Chemical Properties

White solid; [Hawley]

Metals -> Beryllium Compounds, Inorganic

Section 11. Toxicological Information

Once in the body, beryllium acts as a hapten and interacts with human leucocyte antigen (HLA) DP presenting cells in the lungs, becoming physically associated with a major histocompatability (MHC) class II molecule. This MHC class II-beryllium-peptide complex is recognized by the T lymphocyte receptor, triggering CD4+ T lymphocyte activation and proliferation. The resulting inflammatory response is a cell-mediated process orchestrated by cytokines and results in the formation of (usually pulmonary) granulomas. Beryllium's toxicity may be controlled by the iron-storage protein ferritin, which sequesters beryllium by binding it and preventing it from interacting with other enzymes. (L25, A37, A91)

1, carcinogenic to humans. (L135)

Acute inhalation of a high level of beryllium can result in a pneumonia-like condition called acute beryllium disease. Chronic inhalation of beryllium can cause an inflammatory reaction in the respiratory system called chronic beryllium disease. Chronic beryllium disease may result in anorexia and weight loss, as well as right side heart enlargement and heart disease in advanced cases. Chronic exposure can also increase the risk of lung cancer. Skin contact with beryllium results in contact dermatitus. (L24, L25)

Inhalation (L24, L25) ; dermal (L24, L25).

Chronic beryllium disease causes fatigue, weakness, difficulty breathing, and a persistent dry cough. (L24, L25)

Fibrogenic - Inducing tissue injury and fibrosis (scarring).

Chronic beryllium disease is treated with immunosuppressive medicines, usually of the glucocorticoid class. (L24)

Source: PubChem CID 10981 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 10:06:42.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.