7439-95-4 structure, H2Mg

magnesium atom

CAS No.

7439-95-4

Formula:

H2Mg

Basic Info

Magnesium is a transition metal compound used to synthesis Grignard reagents in organic reactions in the synthesis of complex chemical compounds.

Formula
H2Mg
Molecular Weight
26.3209
Exact Mass
26.0007
LogP
0.225
PSA
0
Synonyms

Magnesium powdered

magnesio

UNII-I38ZP9992A

Magnesium

Magnesio [Italian]

magnesium powder

Rieke magnesium

Rieke's active magnesium

anhydrous magnesium

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Properties

Appearance & Physical State
silver or grey rod, turnings or ribbon
Density
1.74
Boiling Point
1107ºC
Melting Point
651ºC
Flash Point
500ºC
Stability
Stable under normal temperatures and pressures.
Storage Condition
water-free area

Safety Info

RTECS
OM3756000
Safety Statements
S43-S7/8
WGK Germany
1
Risk Statements
R11; R15
HS Code
8104300010
RIDADR
UN 1418/1869/2950/3264
Hazard Class
4.1
Packing Group
III
Caution Statement
P210; P231 + P232; P235 + P410; P422
Hazard Codes
Hazard Declaration

MSDS

SDS 1.0
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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name magnesium atom

1.2 Other means of identification

Product number -
Other names UNII-I38ZP9992A

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Intermediates
Uses advised against no data available

1.4 Supplier's details

Company MOLBASE (Shanghai) Biotechnology Co., Ltd.
Address Floor 4 & 5, Building 12, No. 1001 North Qinzhou Road,
Xuhui District, Shanghai, China
Telephone +86(21)64956998
Fax +86(21)54365166

1.5 Emergency phone number

Emergency phone number +86-400-6021-666
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

no data available

2.2 GHS label elements, including precautionary statements

Pictogram(s) no data available
Signal word

no data available

Hazard statement(s)

no data available

Precautionary statement(s)
Prevention

no data available

Response

no data available

Storage

no data available

Disposal

no data available

2.3 Other hazards which do not result in classification

no data available

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
magnesium atom magnesium atom 7439-95-4 none 100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

Fresh air, rest.

In case of skin contact

Remove contaminated clothes. Rinse skin with plenty of water or shower.

In case of eye contact

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

If swallowed

Rinse mouth.

4.2 Most important symptoms/effects, acute and delayed

Dust irritates eyes in same way as any foreign material. Penetration of skin by fragments of metal is likely to produce local irritation, blisters, and ulcers which may become infected. (USCG, 1999)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

Magnesium toxicity can be counteracted with calcium infusion.

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Burning of magnesium cannot be extinguished with water, carbon dioxide, halons or nitrogen ..., and more important, if these agents are used in fire-fighting, the hazardous situation will become even more severe. The only agents that can be applied successfully are the noble gases or in some cases boron trifluoride.

5.2 Specific hazards arising from the chemical

Behavior in Fire: Forms dense white smoke. Flame is very bright. (USCG, 1999)

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Remove all ignition sources. Consult an expert! Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered dry containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT wash away into sewer.

6.3 Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Fireproof. Dry. Well closed. Separated from other incompatible materials.Detached storage must be used for finely divided materials. Must be stored in a dry location. Isolate from halogens, acids, and oxidizing materials.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state silver or grey rod, turnings or ribbon
Colour Silvery-white metal
Odour none
Melting point/ freezing point 651ºC
Boiling point or initial boiling point and boiling range 1090°C(lit.)
Flammability Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire.
Lower and upper explosion limit / flammability limit no data available
Flash point 500ºC
Auto-ignition temperature 510°C
Decomposition temperature no data available
pH no data available
Kinematic viscosity 1.25 cP @ melting point
Solubility INSOL IN COLD WATER, CHROMIUM TRIOXIDES; SOLUBLE IN MINERAL ACIDS
Partition coefficient n-octanol/water (log value) no data available
Vapour pressure 1 Pa @ 428°C
Density and/or relative density 1.74g/mLat 25°C(lit.)
Relative vapour density 0.84
Particle characteristics no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

SLOWLY OXIDIZES IN MOIST AIR.

10.3 Possibility of hazardous reactions

MAGNESIUM FIRE: DO NOT FLARE UP VIOLENTLY UNLESS...MOISTURE PRESENT. DANGEROUS IN FORM OF DUST OR FLAKES, WHEN EXPOSED TO FLAME OR BY VIOLENT CHEM REACTION WITH OXIDIZING AGENTS. ...SOLID FORM IS DIFFICULT TO IGNITE...IT MUST BE HEATED ABOVE ITS MELTING POINT... FINELY DIVIDED FORM...MAY BE IGNITED BY SPARK OR FLAME...OR EVEN SPONTANEOUSLY WHEN...DAMP, PARTICULARLY WITH WATER-OIL EMULSION. DURING MACHINING, MAGNESIUM FIRES RESULT FROM USE OF DULL CUTTING TOOLS, MACHINING WITH LIGHT CUT AT HIGH SPEEDS OR RUBBING OF TOOL ON WORK AFTER CUTTING OPERATION IS FINISHED.Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.MAGNESIUM slowly oxidizes in moist air. Reacts very slowly with water at ordinary temperatures, less slowly at 100°C. Reacts with aqueous solutions of dilute acids with liberation of hydrogen [Merck 11th ed. 1989]. In the presence of carbon, the combination of chlorine trifluoride with aluminum, copper, lead, magnesium, silver, tin, or zinc results in a violent reaction [Mellor 2, Supp. 1. 1956]. A mixture of powdered magnesium with trichloroethylene or with carbon tetrachloride will flash or spark under heavy impact [ASESB Pot. Incid, 39. 1968]. Stannic oxide, heated with magnesium explodes [Mellor 7:401. 1946-47]. When carbon dioxide gas is passed over a mixture of powdered magnesium and sodium peroxide, the mixture exploded [Mellor 2:490. 1946-47]. Powdered magnesium plus potassium (or sodium) perchlorate is a friction-sensitive mixture [Safety Eng. Reports. 1947]. An explosion occurred during heating of a mixture of potassium chlorate and magnesium [Chem. Eng. News 14:451. 1936]. Powdered magnesium can decompose performic acid violently [Berichte 48:1139. 1915]. A mixture of finely divided magnesium and nitric acid is explosive [Pieters 1957. p. 28]. Magnesium exposed to moist fluorine or chlorine is spontaneously flammable [Mellor 4:267. 1946-47].

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

Incompatible with ethylene oxide, metal oxosalts, oxidants, and potassium carbonate.

10.6 Hazardous decomposition products

Violent decomposition with evolution of hydrogen chloride can occur when 1,1,1-trichloroethane comes into contact with magnesium or its alloys with aluminum.

11.Toxicological information

Acute toxicity

  • Oral: no data available
  • Inhalation: no data available
  • Dermal: no data available

Skin corrosion/irritation

no data available

Serious eye damage/irritation

no data available

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

no data available

Reproductive toxicity

no data available

STOT-single exposure

no data available

STOT-repeated exposure

no data available

Aspiration hazard

no data available

12.Ecological information

12.1 Toxicity

  • Toxicity to fish: no data available
  • Toxicity to daphnia and other aquatic invertebrates: no data available
  • Toxicity to algae: no data available
  • Toxicity to microorganisms: no 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 Other adverse effects

no data available

13.Disposal considerations

13.1 Disposal methods

Product

The material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.

Contaminated packaging

Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.

14.Transport information

14.1 UN Number

ADR/RID: UN1869 IMDG: UN1869 IATA: UN1869

14.2 UN Proper Shipping Name

ADR/RID: MAGNESIUM or MAGNESIUM ALLOYS with more than 50% magnesium in pellets, turnings or ribbons
IMDG: MAGNESIUM or MAGNESIUM ALLOYS with more than 50% magnesium in pellets, turnings or ribbons
IATA: MAGNESIUM or MAGNESIUM ALLOYS with more than 50% magnesium in pellets, turnings or ribbons

14.3 Transport hazard class(es)

ADR/RID: Not dangerous goods. IMDG: Not dangerous goods. IATA: Not dangerous goods.

14.4 Packing group, if applicable

ADR/RID: Not dangerous goods. IMDG: Not dangerous goods. IATA: Not dangerous goods.

14.5 Environmental hazards

ADR/RID: no IMDG: no IATA: no

14.6 Special precautions for user

no data available

14.7 Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code

no data available

15.Regulatory information

15.1 Safety, health and environmental regulations specific for the product in question

Chemical name Common names and synonyms CAS number EC number
magnesium atom magnesium atom 7439-95-4 none
European Inventory of Existing Commercial Chemical Substances (EINECS) Listed.
EC Inventory Listed.
United States Toxic Substances Control Act (TSCA) Inventory Listed.
China Catalog of Hazardous chemicals 2015 Listed.
New Zealand Inventory of Chemicals (NZIoC) Listed.
Philippines Inventory of Chemicals and Chemical Substances (PICCS) Listed.
Vietnam National Chemical Inventory Listed.
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) Listed.

16.Other information

Information on revision

Creation Date Aug 16, 2017
Revision Date Aug 16, 2017

Abbreviations and acronyms

  • CAS: Chemical Abstracts Service
  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • IMDG: International Maritime Dangerous Goods
  • IATA: International Air Transportation Association
  • TWA: Time Weighted Average
  • STEL: Short term exposure limit
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • EC50: Effective Concentration 50%

References

  • IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
  • HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
  • IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
  • eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
  • CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
  • ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
  • ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
  • Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
  • ECHA - European Chemicals Agency, website: https://echa.europa.eu/

Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. We as supplier shall not be held liable for any damage resulting from handling or from contact with the above product.
MSDS
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Section 1: Product Identification
   Chemical Name:       Magnesium chips (99+%)    
   CAS Registry Number:       7439-95-4    
   Formula:       Mg    
   EINECS Number:       231-104-6    
   Chemical Family:       metal or element    
   Synonym:       Alkaline earth metal    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       7439-95-4       100%       no data       no data    

Section 3: Hazards Identification
   Emergency Overview:       Irritating to skin, eyes and respiratory tract.    
   Primary Routes of Exposure:       Ingestion, inhalation (of dust or fume).    
   Eye Contact:       Causes slight to mild irritation of the eyes.    
   Skin Contact:       Causes slight to mild irritation of the skin.    
   Inhalation:       Inhalation of fine dust is irritating to the nasal cavity, mucous membranes and respiratory tract.    
   Ingestion:       No specific information on the physiological effects of ingestion.    
   Acute Health Affects:       Irritating to skin, eyes and respiratory tract.    
   Chronic Health Affects:       No information available on long-term exposure to this material.    
   NTP:       No    
   IARC:       No    
   OSHA:       No    

SECTION 4: First Aid Measures
   (For dust) Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may
   Eye Exposure:
   need assistance in keeping their eye lids open. Get immediate medical attention.
   (For dust) Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical
   Skin Exposure:
   assistance if irritation persists.
   (For dust) Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as
   Inhalation:
   difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
   (For dust) Seek medical attention immediately. Keep the victim calm. Give the victim water (only if
   Ingestion:
   conscious). Induce vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
   Flash Point:       not applicable    
   Autoignition Temperature:       no data    
   Explosion Limits:       not applicable    
   Extinguishing Medium:       Dry chemical or Class D metal fire agent.    
   If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
   Special Fire Fighting Procedures:
   self-contained breathing apparatus.
   Hazardous Combustion and       If involved in a fire, burning metal may produce mildly irritating fumes of magnesium oxide or carbonate.    
   Decomposion Products:
   Flammable solid. Burns with intense heat. Dust may form explosive mixtures with air. Evolves flammable
   Unusual Fire or Explosion Hazards:
   hydrogen with water.

SECTION 6: Accidental Release Measures
   In the case of a spill, the material should be covered with dry soda ash, limestone, or sand. If wet, seek expert
   Spill and Leak Procedures:
   advice.

SECTION 7: Handling and Storage
   Handling and Storage:       Store in a tightly sealed container in a cool dry place. Handle in nitrogen, away from air and humidity.    

SECTION 8: Exposure Controls and Personal Protection
   Eye Protection:       Always wear approved safety glasses when handling a chemical substance in the laboratory.    
   Skin Protection:       Wear protective clothing and gloves.    
   Ventilation:       If in form of dust, handle the material in an efficient fume hood.    
   If material is in the form of a fine dust and ventilation is not available a respirator should be worn. The use of
   Respirator:
   respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
   Ventilation:       If in form of dust, handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       -4 + 18 mesh    
   Molecular Weight:       24.32    
   Melting Point:       657°    
   Boiling Point:       1107°C    
   Vapor Pressure:       1mm (621 °C)    
   Specific Gravity:       1.74    
   Odor:       none    
   Solubility in Water:       May react with hot water    

SECTION 10: Stability and Reactivity
   Stability:       air and moisture stable    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       Mixtures of fine dust with air. Contact with an ignition source.    
   Incompatibility:       Water, alcohols, oxidizers, oxygen, carbon dioxide, halogens, halocarbons, acids.    
   Decomposition Products:       none    

SECTION 11: Toxicological Information
   RTECS Data:       No information available in the RTECS files.    
   Carcinogenic Effects:       No data available    
   Mutagenic Effects:       No data available    
   Tetratogenic Effects:       No data available    

SECTION 12: Ecological Information
   Ecological Information:       No information available    

SECTION 13: Disposal Considerations
   Disposal:       Dispose of according to local, state and federal regulations.    

SECTION 14: Transportation
   Shipping Name (CFR):       Magnesium    
   Hazard Class (CFR):       4.1    
   Additional Hazard Class (CFR):       NA    
   Packaging Group (CFR):       III    
   UN ID Number (CFR):       UN# 1869    
   Shipping Name (IATA):       Magnesium alloys    
   Hazard Class (IATA):       4.1    
   Additional Hazard Class (IATA):       NA    
   Packaging Group (IATA):       III    
   UN ID Number (IATA):       UN# 1869    

SECTION 15: Regulatory Information
   TSCA:       Listed in the TSCA inventory    
   SARA (Title 313):       Title compound not listed    
   Second Ingredient:       none    


SECTION 16 - ADDITIONAL INFORMATION
N/A

Synthesis Route