Chemical Safety Data Sheet MSDS / SDS
Ethylmagnesium bromide
Revision Date:2026-03-21Revision Number:1
Product identifier
- Product name: Ethylmagnesium bromide
- CBnumber: CB8696160
- CAS: 925-90-6
- EINECS Number: 213-127-3
- Synonyms: EtMgBr;ETHYLMAGNESIUM BROMIDE
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 010-86108875
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordDanger
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P405 Store locked up.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P403+P235 Store in a well-ventilated place. Keep cool.
P402+P404 Store in a dry place. Store in a closed container.
P310 Immediately call a POISON CENTER or doctor/physician.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P422 Store contents under …
P370+P378 In case of fire: Use … for extinction.
P231+P232 Handle under inert gas. Protect from moisture.
P223 Keep away from any possible contact with water, because of violent reaction and possible flash fire.
P222 Do not allow contact with air.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P335+P334 Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P271 Use only outdoors or in a well-ventilated area.
P270 Do not eat, drink or smoke when using this product.
P264 Wash skin thouroughly after handling.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P240 Ground/bond container and receiving equipment.
P233 Keep container tightly closed.
P202 Do not handle until all safety precautions have been read and understood.
P201 Obtain special instructions before use.
Hazard statements
H336 May cause drowsiness or dizziness
H351 Suspected of causing cancer
H335 May cause respiratory irritation
H302 Harmful if swallowed
H261 In contact with water releases flammable gas
H314 Causes severe skin burns and eye damage
H260 In contact with water releases flammable gases which may ignite spontaneously
H250 Catches fire spontaneously if exposed to air
H225 Highly Flammable liquid and vapour
H318 Causes serious eye damage
H303 May be harmfulif swallowed
H372 Causes damage to organs through prolonged or repeated exposure
H371 May cause damage to organs
H361 Suspected of damaging fertility or the unborn child
H224 Extremely flammable liquid and vapour
Substance
- Product name: Ethylmagnesium bromide
- Synonyms: EtMgBr;ETHYLMAGNESIUM BROMIDE
- CAS: 925-90-6
- EC number: 213-127-3
- MF: C2H5BrMg
- MW: 133.27
4.1 Description of first-aid measures
General adviceFirst aiders need to protect themselves. Show this material safety data sheet to the doctor in attendance.
If inhaled
After inhalation: fresh air. Call in physician.
In case of skin contact
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower. Call a physician immediately.
In case of eye contact
After eye contact: rinse out with plenty of water. Immediately call in ophthalmologist.
Remove contact lenses.
If swallowed
Remove contact lenses.
After swallowing: make victim drink water (two glasses at most), avoid vomiting (risk of perforation). Call a physician immediately. Do not attempt to neutralise.
4.2 Most important symptoms and effects, both acute and delayed
The most important known symptoms and effects are described in the labelling (see section 2) and/or in section 11
4.3 Indication of any immediate medical attention and special treatment needed
No data available
4.4 Notes to physician
No data available
5.1 Extinguishing media
Suitable extinguishing mediaCarbon dioxide (CO2) Dry powder
Unsuitable extinguishing media
Water Foam
5.2 Special hazards arising from the substance or mixture
Carbon oxides
Hydrogen bromide gas
Magnesium oxide
Combustible.
Pay attention to flashback.
Vapors are heavier than air and may spread along floors.
May not get in touch with: Water
Development of hazardous combustion gases or vapours possible in the event of fire.
Forms explosive mixtures with air at ambient temperatures.
Hydrogen bromide gas
Magnesium oxide
Combustible.
Pay attention to flashback.
Vapors are heavier than air and may spread along floors.
May not get in touch with: Water
Development of hazardous combustion gases or vapours possible in the event of fire.
Forms explosive mixtures with air at ambient temperatures.
5.3 Advice for firefighters
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.
Remove container from danger zone and cool with water. Suppress (knock down) gases/vapors/mists with a water spray jet. Prevent fire extinguishing water from contaminating surface water or the ground water system.
Remove container from danger zone and cool with water. Suppress (knock down) gases/vapors/mists with a water spray jet. Prevent fire extinguishing water from contaminating surface water or the ground water system.
NFPA 704
3
4
2
| HEALTH | 3 | Short exposure could cause serious temporary or moderate residual injury (e.g. liquid hydrogen, sulfuric acid, calcium hypochlorite, hexafluorosilicic acid) | |
| FIRE | 4 | Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Includes pyrophoric substances. Flash point below room temperature at 22.8 °C (73 °F). (e.g. acetylene, propane, hydrogen gas) | |
| REACT | 2 | Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water (e.g. white phosphorus, potassium, sodium) | |
| SPEC. HAZ. |
6.1 Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Do not breathe vapors, aerosols. Avoid substance contact. Ensure adequate ventilation. Keep away from heat and sources of ignition.
Evacuate the danger area, observe emergency procedures, consult an expert.
For personal protection see section 8.
Evacuate the danger area, observe emergency procedures, consult an expert.
For personal protection see section 8.
6.2 Environmental precautions
Do not let product enter drains. Risk of explosion.
6.3 Methods and materials for containment and cleaning up
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up with liquid-absorbent material (e.g. Chemizorb® ).
Dispose of properly. Clean up affected area.
Dispose of properly. Clean up affected area.
6.4 Reference to other sections
For disposal see section 13.
7.1 Precautions for safe handling
Advice on safe handlingWork under hood. Do not inhale substance/mixture. Avoid generation of vapours/aerosols.
Keep workplace dry. Do not allow product to come into contact with water.
Advice on protection against fire and explosion
Keep workplace dry. Do not allow product to come into contact with water.
Keep away from open flames, hot surfaces and sources of ignition.Take precautionary measures against static discharge.
Hygiene measures
Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.
For precautions see section 2.2.
For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditionsTightly closed. Keep away from heat and sources of ignition.
Never allow product to get in contact with water during storage.
Air and moisture sensitive. Store under inert gas.
Storage class
Never allow product to get in contact with water during storage.
Air and moisture sensitive. Store under inert gas.
Storage class (TRGS 510): 4.3: Hazardous materials, which set free flammable gases upon contact with water
8.1 Control parameters
Ingredients with workplace control parameters| ['Component', 'CAS-No.', 'Value', 'Control\nparameters', 'Basis'] | ['tert-butyl methyl\nether', '1634-04-4', 'PC-TWA', '180 mg/m3', 'Occupational exposure limits for\nhazardous agents in the\nworkplace - Chemical\nhazardous agents.'] | ['', '', 'PC-STEL', '270 mg/m3', 'Occupational exposure limits for\nhazardous agents in the\nworkplace - Chemical\nhazardous agents.'] |
|---|
8.2 Exposure controls
Appropriate engineering controlsImmediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.
Personal protective equipment
Eye/face protection
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Tightly fitting safety goggles
Skin protection
required
Body Protection
Flame retardant antistatic protective clothing.
Respiratory protection
required when vapours/aerosols are generated.
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
Control of environmental exposure
Do not let product enter drains. Risk of explosion.
Information on basic physicochemical properties
- a) Physical stateliquid
- b) ColorPale yellow to brown
- c) OdorNo data available
- d) Melting point/freezing pointNo data available
- e) Initial boiling point and boiling range34.6°C
- f) Flammability (solid, gas)No data available
- g) Upper/lower flammability or explosive limitsNo data available
- h) Flash point-34 °C - closed cup
- i) Autoignition temperatureNo data available
- j) Decomposition temperatureNo data available
- k) pHNo data available
- l) ViscosityViscosity, kinematic: No data available
Viscosity, dynamic: No data available - m) Water solubilityReacts with water.
- n) Partition coefficient n-octanol/waterNo data available
- o) Vapor pressureNo data available
- p) Density0.841 g/mL at 25 °C
- Relative density1.02 g/mL at 25 °C
- q) Relative vapor densityNo data available
- r) Particle characteristicsNo data available
- s) Explosive propertiesNot classified as explosive.
- t) Oxidizing propertiesnone
- SolubilityMiscible in alcohols, ketones, esters, ethers, hydrocarbons.
9.2 Other safety information
No data available
10.1 Chemical stability
Sensitive to air. sensitive to moisture
10.2 Possibility of hazardous reactions
No data available
10.3 Conditions to avoid
Exposure to air.
Warming.
Moisture.
Warming.
Moisture.
10.4 Incompatible materials
Oxygen, Oxidizing agents, Alcohols, Acids
10.5 Hazardous decomposition products
In the event of fire: see section 5
11.1 Information on toxicological effects
Mixture Acute toxicityOral: No data available
Symptoms: If ingested, severe burns of the mouth and throat, as well as a danger of perforation of the esophagus and the stomach.
Symptoms: mucosal irritations, Cough, Shortness of breath, Possible damages:, damage of respiratory tract
Dermal: No data available
Skin corrosion/irritation
Symptoms: If ingested, severe burns of the mouth and throat, as well as a danger of perforation of the esophagus and the stomach.
Symptoms: mucosal irritations, Cough, Shortness of breath, Possible damages:, damage of respiratory tract
Dermal: No data available
Remarks: Mixture causes burns.
Serious eye damage/eye irritation
Remarks: Mixture causes serious eye damage.
Risk of blindness!
Respiratory or skin sensitization
Risk of blindness!
Classified based on available data. For more details, see section 2
Germ cell mutagenicity
Classified based on available data. For more details, see section 2
Carcinogenicity
Classified based on available data. For more details, see section 2
Reproductive toxicity
Classified based on available data. For more details, see section 2
Specific target organ toxicity - single exposure
Classified based on available data. For more details, see section 2
Specific target organ toxicity - repeated exposure
Classified based on available data. For more details, see section 2
Aspiration hazard
Classified based on available data. For more details, see section 2
11.2 Additional Information
Other dangerous properties can not be excluded.
Handle in accordance with good industrial hygiene and safety practice.
Components tert-butyl methyl ether
Handle in accordance with good industrial hygiene and safety practice.
Acute toxicity
LD50 Oral - Rat - male and female - > 2,000 mg/kg (OECD Test Guideline 401)
Symptoms: Nausea, Vomiting, Pulmonary failure possible after aspiration of vomit.,
Aspiration may cause pulmonary edema and pneumonitis.
LC50 Inhalation - Rat - male and female - 4 h - 85 mg/l - vapor (OECD Test Guideline 403)
Symptoms: Possible damages:, mucosal irritations
LD50 Dermal - Rat - male and female - > 2,000 mg/kg (OECD Test Guideline 402)
Symptoms: Nausea, Vomiting, Pulmonary failure possible after aspiration of vomit.,
Aspiration may cause pulmonary edema and pneumonitis.
LC50 Inhalation - Rat - male and female - 4 h - 85 mg/l - vapor (OECD Test Guideline 403)
Symptoms: Possible damages:, mucosal irritations
LD50 Dermal - Rat - male and female - > 2,000 mg/kg (OECD Test Guideline 402)
Skin corrosion/irritation
Skin - Rabbit
Result: Skin irritation - 4 h (OECD Test Guideline 404)
Remarks: Drying-out effect resulting in rough and chapped skin.
Result: Skin irritation - 4 h (OECD Test Guideline 404)
Remarks: Drying-out effect resulting in rough and chapped skin.
Serious eye damage/eye irritation
Eyes - Rabbit
Result: No eye irritation (OECD Test Guideline 405)
Respiratory or skin sensitization
Result: No eye irritation (OECD Test Guideline 405)
Maximization Test - Guinea pig
Result: negative (OECD Test Guideline 406)
Germ cell mutagenicity
Result: negative (OECD Test Guideline 406)
Test Type: In vitro mammalian cell gene mutation test
Test system: Chinese hamster lung cells
Result: negative
Test Type: Ames test
Test system: Salmonella typhimurium
Result: negative
Test Type: Mutagenicity (mammal cell test): micronucleus.
Test system: mouse lymphoma cells
Result: negative
Method: OECD Test Guideline 486
Species: Mouse - male and female - Liver cells
Result: negative
Method: US-EPA
Species: Mouse - male and female - Bone marrow
Result: negative
Method: US-EPA
Species: Rat - male and female - Bone marrow
Result: negative
Method: OECD Test Guideline 488
Species: Rat - male - Bone marrow
Result: negative
Carcinogenicity
Test system: Chinese hamster lung cells
Result: negative
Test Type: Ames test
Test system: Salmonella typhimurium
Result: negative
Test Type: Mutagenicity (mammal cell test): micronucleus.
Test system: mouse lymphoma cells
Result: negative
Method: OECD Test Guideline 486
Species: Mouse - male and female - Liver cells
Result: negative
Method: US-EPA
Species: Mouse - male and female - Bone marrow
Result: negative
Method: US-EPA
Species: Rat - male and female - Bone marrow
Result: negative
Method: OECD Test Guideline 488
Species: Rat - male - Bone marrow
Result: negative
Classified based on available data. For more details, see section 2
Reproductive toxicity
Classified based on available data. For more details, see section 2
Specific target organ toxicity - single exposure
Acute oral toxicity - Nausea, Vomiting, Pulmonary failure possible after aspiration of vomit., Aspiration may cause pulmonary edema and pneumonitis.
Acute inhalation toxicity - Possible damages:, mucosal irritations
Specific target organ toxicity - repeated exposure Aspiration hazard
Acute inhalation toxicity - Possible damages:, mucosal irritations
Classified based on available data. For more details, see section 2
Bromoethylmagnesium Acute toxicity
Oral: No data available
Inhalation: No data available
Dermal: No data available
Skin corrosion/irritation
Inhalation: No data available
Dermal: No data available
Remarks: No data available
Serious eye damage/eye irritation
Remarks: No data available
Respiratory or skin sensitization
Classified based on available data. For more details, see section 2
Germ cell mutagenicity
Classified based on available data. For more details, see section 2
Carcinogenicity
Classified based on available data. For more details, see section 2
Reproductive toxicity
Classified based on available data. For more details, see section 2
Specific target organ toxicity - single exposure
Classified based on available data. For more details, see section 2
Specific target organ toxicity - repeated exposure
Classified based on available data. For more details, see section 2
Aspiration hazard
Classified based on available data. For more details, see section 2
12.1 Toxicity
MixtureNo data available
12.2 Persistence and degradability
No data available
12.3 Bioaccumulative potential
No data available
12.4 Mobility in soil
No data available
12.5 Results of PBT and vPvB assessment
PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
12.6 Endocrine disrupting properties
No data available
12.7 Other adverse effects
No data available
Components tert-butyl methyl ether
Toxicity to fish semi-static test LC50 - Menidia beryllina - 574 mg/l - 96 h (OECD Test Guideline 203)
Toxicity to daphnia flow-through test EC50 - Americamysis bahia (Mysid) - 187 and other aquatic mg/l - 96 h invertebrates (US-EPA OPPTS 850.1035)
Toxicity to algae static test IC50 - Pseudokirchneriella subcapitata (green algae) - 491 mg/l - 96 h
Toxicity to bacteria static test EC10 - Pseudomonas putida - 710 mg/l - 18 h
Remarks: (ECHA)
Toxicity to flow-through test NOEC - Pimephales promelas (fathead fish(Chronic toxicity) minnow) - 299 mg/l - 31 d
Remarks: (ECHA) flow-through test NOEC - Pimephales promelas (fathead minnow) - 450 mg/l - 31 d
Remarks: (ECHA)
Toxicity to daphnia flow-through test NOEC - Daphnia magna (Water flea) - 51 and other aquatic mg/l - 21 d invertebrates(Chronic (OPPTS 850.1300) toxicity)
Bromoethylmagnesium
Toxicity to daphnia flow-through test EC50 - Americamysis bahia (Mysid) - 187 and other aquatic mg/l - 96 h invertebrates (US-EPA OPPTS 850.1035)
Toxicity to algae static test IC50 - Pseudokirchneriella subcapitata (green algae) - 491 mg/l - 96 h
Toxicity to bacteria static test EC10 - Pseudomonas putida - 710 mg/l - 18 h
Remarks: (ECHA)
Toxicity to flow-through test NOEC - Pimephales promelas (fathead fish(Chronic toxicity) minnow) - 299 mg/l - 31 d
Remarks: (ECHA) flow-through test NOEC - Pimephales promelas (fathead minnow) - 450 mg/l - 31 d
Remarks: (ECHA)
Toxicity to daphnia flow-through test NOEC - Daphnia magna (Water flea) - 51 and other aquatic mg/l - 21 d invertebrates(Chronic (OPPTS 850.1300) toxicity)
No data available
13.1 Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company.
Offer surplus and non-recyclable solutions to a licensed disposal company.
14.1 UN number
ADR/RID: 3399
IMDG: 3399
IATA-DGR: 3399
IMDG: 3399
IATA-DGR: 3399
14.2 UN proper shipping name
ADR/RID: ORGANOMETALLIC SUBSTANCE, LIQUID, WATER-REACTIVE, FLAMMABLE (Bromoethylmagnesium, tert-butyl methyl ether)
IMDG: ORGANOMETALLIC SUBSTANCE, LIQUID, WATER-REACTIVE, FLAMMABLE (Bromoethylmagnesium, tert-butyl methyl ether)
IATA-DGR: Organometallic substance, liquid, water-reactive, flammable (Bromoethylmagnesium, tert-butyl methyl ether)
Passenger Aircraft: Not permitted for transport
IMDG: ORGANOMETALLIC SUBSTANCE, LIQUID, WATER-REACTIVE, FLAMMABLE (Bromoethylmagnesium, tert-butyl methyl ether)
IATA-DGR: Organometallic substance, liquid, water-reactive, flammable (Bromoethylmagnesium, tert-butyl methyl ether)
Passenger Aircraft: Not permitted for transport
14.3 Transport hazard class(es)
ADR/RID: 4.3 (3)
IMDG: 4.3 (3)
IATA-DGR: 4.3 (3)
IMDG: 4.3 (3)
IATA-DGR: 4.3 (3)
14.4 Packaging group
ADR/RID: I
IMDG: I
IATA-DGR: I
IMDG: I
IATA-DGR: I
14.5 Environmental hazards
ADR/RID: no
IMDG Marine pollutant: no
IATA-DGR: no
IMDG Marine pollutant: no
IATA-DGR: no
14.6 Special precautions for user
Based on chemical properties, choose appropriate tools and conditions of transport.
Transporting tools shall be equipped with appropriate and sufficient firefighting equipment and emergency leaking installations. If transporting by road, please go along the specified route.
Transporting tools shall be equipped with appropriate and sufficient firefighting equipment and emergency leaking installations. If transporting by road, please go along the specified route.
14.7 Incompatible materials
Oxygen, Oxidizing agents, Alcohols, Acids
15.1 Safety, health and environmental regulations/legislation specific for the substance or mixture
National regulatory information
Law on the Prevention and Control of Occupational Diseases
Regulations on Safety Management of Hazardous Chemicals
Catalogue of Hazardous Chemicals : Listed
Other regulations
Please pay attention on the waste treatment should also comply with local regulations requirement.
Law on the Prevention and Control of Occupational Diseases
Regulations on Safety Management of Hazardous Chemicals
Catalogue of Hazardous Chemicals : Listed
Other regulations
Please pay attention on the waste treatment should also comply with local regulations requirement.
Abbreviations and acronyms
CAS: Chemical Abstracts Service
TWA: Time-Weighted Average
STEL: Short-Term Exposure Limit
LD50: Lethal Dose 50%
LC50: Lethal Concentration 50%
EC50: Effective Concentration 50%
PEL: Permissible Exposure Limit
TLV: Threshold Limit Value
IMDG: International Maritime Dangerous Goods Code
IATA: International Air Transport Association
ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
DOT: US Department of Transportation
NFPA: National Fire Protection Association
NIOSH: National Institute for Occupational Safety and Health
OSHA: Occupational Safety and Health Administration
TWA: Time-Weighted Average
STEL: Short-Term Exposure Limit
LD50: Lethal Dose 50%
LC50: Lethal Concentration 50%
EC50: Effective Concentration 50%
PEL: Permissible Exposure Limit
TLV: Threshold Limit Value
IMDG: International Maritime Dangerous Goods Code
IATA: International Air Transport Association
ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
DOT: US Department of Transportation
NFPA: National Fire Protection Association
NIOSH: National Institute for Occupational Safety and Health
OSHA: Occupational Safety and Health Administration
Disclaimer:
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.
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