English Safety Data Sheet Database 中文版 MSDS

2-bromoethanol

CAS No. 540-51-2 | PubChem CID 10898
Section 1. Identification
Chemical Name2-bromoethanol CAS No.540-51-2
Synonyms2-bromoethylalcohol;eth-ylenebromohydrin Chinese Name2-溴乙醇
Molecular FormulaC2H5BrO Molecular Weight124.98
UN No.1987 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS05 · Corrosive GHS06 · Acute Toxic
Hazard Statements H301H311H314H331
Precautionary Statements P260P261P262P264P270P271P280P301+P316P301+P330+P331P302+P352P302+P361+P354P304+P340P305+P354+P338P316P321P330P361+P364P363P403+P233P405P501

Section 2. Hazards Identification

H301 (95.5%): Toxic if swallowed [Danger Acute toxicity, oral]

H311 (95.5%): Toxic in contact with skin [Danger Acute toxicity, dermal]

H314 (97.3%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H331 (91.9%): Toxic if inhaled [Danger Acute toxicity, inhalation]

P260, P261, P262, P264, P270, P271, P280, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P361+P364, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 111 reports by companies from 8 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 4. First-Aid Measures

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

Section 5. Fire-Fighting Measures

Fires involving this compound can be controlled using a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)

Section 6. Accidental Release Measures

Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.

LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Section 7. Handling and Storage

SMALL SPILLS AND LEAKAGE: If you spill this chemical, FIRST REMOVE ALL SOURCES OF IGNITION. Then, use absorbent paper to pick up all liquid spill material. Seal the absorbent paper, as well as any of your clothing which may be contaminated, in a vapor-tight plastic bag for eventual disposal. Wash any surfaces you may have contaminated with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

STORAGE PRECAUTIONS: You should store this chemical under refrigerated temperatures, and protect it from moisture. STORE AWAY FROM SOURCES OF IGNITION. (NTP, 1992)

Section 8. Exposure Controls / Personal Protection

0.35 [mg/m3]

3.8 [mg/m3]

23 [mg/m3]

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.

RECOMMENDED GLOVE MATERIALS: If this chemical makes direct contact with your gloves, or if a tear, puncture or hole develops, replace them at once.

Suggested Glove Type(s): Viton, Butyl rubber (NTP, 1992)

Section 9. Physical and Chemical Properties

2-bromoethanol is a colorless to dark brown liquid. Sweet burning taste. (NTP, 1992)

Colorless to dark brown liquid. Sweet burning taste; [CAMEO]

300 to 302 °F at 750 mmHg (Decomposes) (NTP, 1992)

150 °C @760 [mm Hg]

105 °F (NTP, 1992)

10 to 50 mg/mL at 66 °F (NTP, 1992)

1.7629 at 68 °F (NTP, 1992) - Denser than water; will sink

1.7629 @ 20°C

12 mmHg at 122 °F (NTP, 1992)

2.06 [mmHg]

Schoenflies notation

Chemical bond

Internuclear distance

Molecular structure

Nuclear quadrupole coupling

Nuclear quadrupole moment

Optical coefficient

Point group

Refractive index

Rotational excitation cross section

Vibrational mode frequency

Other Classes -> Halogenated Alcohols

Section 10. Stability and Reactivity

Hygroscopic. Water soluble.

Alcohols and Polyols

Halogenated Organic Compounds

2-BROMOETHANOL forms an azeotrope with water; hydrolysis of aqueous solutions is accelerated by heat, alkalis and acids. (NTP, 1992)

Section 11. Toxicological Information

Dermatotoxin - Skin burns.

Toxic Pneumonitis - Inflammation of the lungs induced by inhalation of metal fumes or toxic gases and vapors.

Section 14. Transport Information

Flammable Liquid

Source: PubChem CID 10898 (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 09:27:27.
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.