Material Safety Data Sheet
Material Name: MAGNESIUM AND MAGNESIUM ALLOY INGOT
***Section 1 – Chemical product and Company Identification***
Chemical Formula:
Metallic Magnesium, Mg, with alloying
metals
Product Use:
Magnesium components, alloy and powder
chemical catalysts, re-agent production and remelt for new
alloys
Other
Designations: AM50A, AM60B, AS21F,
AS41B, ASTM B-93H393M-94A, GOST 804-93
Supplier:
Greenwich Metals
Inc.
22 West Putnam
Avenue
Greenwich, CT
06830
Phone:
203-622-4848
Emergency
Information:
Greenwich Metals, Inc.
203-622-4848
***Section 2 –
Composition/Information on Ingredients***
CAS#
Component
Percent
7439-95-4
Magnesium
89.6-99.8
7429-90-5
Aluminum
<9.6
7440-66-6
Zinc
<2.4
7440-21-3
Silicon
<1.5
7439-96-5
Manganese
<0.7
7439-92-1
Lead
<0.4
7440-41-7
Beryllium
<0.002
Component
Information
Additional compounds, which
may be formed during processing, are listed in Section 8.
Exact alloy compositions are
listed in Section 15.
***Section 3 –
Hazards Identification***
Emergency
Overview
Solid. Silvery-white.
Odorless. Large pieces are difficult to ignite but when heated to a temperature
near the melting point (1200 C), can ignite and burn with intense heat and
brilliant white flame. This sheets, chips, dust and fines are easily
ignited.
Explosion/fire hazards may be
present when (See Sections 5,7 and 10 for additional
information):
= Dust or fines are dispersed
in the air.
= Molten metal in contact
with water/moisture.
Dust and fume from processing
can cause irritation of eyes, skin and upper respiratory tract, and metal fume
fever. Direct viewing of magnesium fires may result in eye
injury.
Potential Health Effects
(If dusts or fumes are generated by processing)
Eyes
Can cause
irritation.
Skin
Can cause
irritation.
Inhalation
Can cause irritation of upper
respiratory tract, metal fume fever and other health effects listed below.
Cancer and reproductive hazard.
Health Effects of
Ingredients
Beryllium can cause lung sensitization in susceptible
individuals. Skin contact: Can cause irritant dermatitis, allergic
contact dermatitis and lumps on the skin (granulomas). Acute
overexposures: Can cause inflammation of the lung tissues (Acute Beryllium
Disease). Acute Beryllium Disease can be fatal but is unlikely to occur when
processing beryllium-containing aluminum alloys.
Chronic
exposures: Chronic inhalation of dust
and fumes by sensitized individuals can result in a serious progressive disease
called Chronic Beryllium Disease (CBD). This disease, often misdiagnosed as
sarcoidosis, is an allergic condition in which the lung tissues become inflamed.
This inflammation, sometimes accompanied with scarring of the lungs (pulmonary
fibrosis), restricts the uptake of oxygen into the blood stream. CBD can, over
time, be fatal.
Beryllium studies with
experimental animals by inhalation have found lung tumors. IARC/NTP
listed as “reasonably anticipated to be a human carcinogen” by the NTP. Listed
as carcinogenic by IARC (Group 1)*.
Lead dust or
fume can cause irritation of the eyes
and upper respiratory tract. Acute overexposures: Can cause nausea
and muscle cramps. Chronic overexposures: Can cause weakness in the
extremities (peripheral neuropathy), gastrointestinal tract effects, kidney
damage, liver damage, central nervous system damage, damage to blood forming
organs, blood cell damage and reproductive harm. Can cause reduced fertility and
fetal toxicity in pregnant women. Certain inorganic lean compounds
IARC/NTP: Listed as “reasonably anticipated to be a human carcinogen” by
the NTP. Listed as possibly carcinogenic to humans by IARC (Group
2B)*.
Manganese dust or
fumes Chronic overexposures: Can
cause central nervous system damage, secondary Parkinson’s disease, inflammation
of the lung tissue, scarring of the lungs (pulmonary fibrosis) and reproductive
harm in males.
Silicon inert
dusts Chronic overexposures: Can
cause chronic bronchitis and narrowing of the airways. Studies with experimental
animals by injection have found lesions on the lungs.
Aluminum dust, fines and
fumes Low health risk by inhalation.
ACGIH: Listed as nuisance dust (milling, cutting,
grinding).
Health Effects of
Additional Compounds Which May Be Formed During
Processing
Magnesium oxide
fumes Can cause irritation of eyes and
respiratory tract. Acute overexposures: Can cause nausea, fever,
chills, shortness of breath and malaise (metal fume
fever).
Zinc oxide
fumes Can cause irritation of upper
respiratory tract. Acute overexposures:.Can cause nausea, fever, chills,
shortness of breath and malaise (metal fume fever). Zinc oxide dust
Expected to be a low health risk by inhalation.
Manganese oxide
fumes Can cause irritation of
respiratory tract. Acute overexposures: Can cause nausea, fever, chills,
shortness of breath and malaise (metal fume fever).
Silica,
amorphous Acute overexposures:
Can cause dryness of eyes, nose and upper respiratory
tract.
Aluminia Low health risk by inhalation. ACGIH: Listed as
nuisance dust.
*IARC
Classifications
Group 1: The agent is
carcinogenic to humans. There is sufficient evidence that a causal relationship
existed between exposure to the agent and human cancer.
Group 2B: The agent is
possible carcinogenic to humans. Generally includes agents for which there is
limited evidence in the absence of sufficient evidence in experimental
animals.
Medical Conditions
Aggravated By Exposure to the Product
Asthma, chronic lung disease,
skin rashes and Parkinson’s disease.
***Section 4 – First Aid Measures***
First Aid:
Eyes
Flush eyes with plenty of
water or saline for at least 15 minutes. Consult a
physician.
First Aid:
Skin
Wash skin with soap and water
for at least 15 minutes. Consult a physician if irritation
persists.
First Aid:
Inhalation
Remove to fresh air. If
unconscious or severely injured, check for clean airway, breathing and presence
of pulse. Perform CPR if there is no pulse or respiration. Consult a
physician.
***Section 5 – Fire Fighting Measures***
Auto
Ignition: 1202 F (650
C)
Flammable
Properties
This product does not present
fire or explosion hazards as shipped. Large pieces can ignite but must be heated
to a temperature near the melting point (1200 F/650 C). Thin sheet, chips and
shavings can be ignited at temperatures near 950 F (510 C). Finely divided
powders can be ignited at temperatures below 900 F (482
C).
Fire/Explosion
May be a potential hazard
under the following conditions:
= Dust or fines dispersed in
the air can be explosive. Even a minor dust cloud can explode
violently.
= Molten metal in contact
with water/moisture. Moisture entrapped by molten metal can be explosive.
Contact with water can generate hydrogen gas. Hydrogen gas could present an
explosion hazard in confined or poorly ventilated spaces.
Extinguishing
Media
Smother fires with salt flux.
Manual application of water should be done with care to avoid contact with
burning or molten metal.
DO NOT USE: Foam. Halogenated
agents. Carbon Dioxide.
Fire Fighting
Equipment/Instructions
Fire fighters should wear
NIOSH approved, positive pressure, self-contained breathing apparatus and full
protective clothing when appropriate. Direct viewing of magnesium fires may
result in eye injury.
***Section 6 – Accidental release measures***
Small/Large
Spill
If molten: Contain the flow using dry sand or salt flux as a dam.
Do not use shovels or hand tools to halt the flow of molten metal. Allow the
spill to cool before remelting as scrap.
***Section 7 – Handling and Storage***
Handling/Storage
Product should be kept dry.
Avoid contact with sharp edges or heated metal.
Requirements for Processes
Which Generate Dusts or Fumes
Molten metal and water can be
an explosive combination. The risk is greatest when there is sufficient molten
metal to entrap or seal off the water. Water and other forms of contamination on
or contained in scrap or remelt ingot are known to have caused explosions in
melting operations. While the products may have minimal surface roughness and
internal voids, there remains the possibility of moisture contamination or
entrapment. If confined, even a few drops of water can lead to violent
explosions.
During melting operations,
the following minimum guidelines should be observed:
= Inspect all materials prior
to furnace charging and completely remove surface contamination such as water,
ice, snow, deposits of grease and oil or other surface contamination resulting
from weather exposure, shipment or storage.
= Store materials in dry,
heated areas with any cracks or cavities pointed
downwards.
= Preheat and dry large or
heavy items such as ingot adequately before charging into a furnace containing
molten metal. This is typically done by use of a drying oven or homogenizing
furnace. The drying cycle should bring the internal metal temperature of the
coldest item of the batch to 400 F and than hold at that temperature for 6
hours.
***Section 8 – Exposure Controls/Personal Protection***
Engineering
Controls
Use with adequate
explosion-proof ventilation to meet the limits listed in Section
8.
Personal Protective
Equipment
Respiratory
Protection
Use NIOSH-approved
respiratory protection as specified by an Industrial Hygienist or other
qualified professional if concentrations exceed the limits listed in Section 8.
Suggested respiratory protection: N95, N100 for lead or supplied air for
beryllium.
Eye
Protection
Wear safety glasses/goggles
to avoid eye contact.
Skin
Protection
Wear appropriate gloves to
avoid any skin injury.
General
Wear appropriate
fire-resistant clothing (e.g., gloves, coveralls) when exposing magnesium chips
and turnings to elevated temperatures (950 F/510 C), which cause
ignition.
Beryllium can concentrate up to 10-fold or higher in dross. This
can create a potential for over-exposes to beryllium during dross handling,
particularly when dust levels are not adequately controlled. Appropriate
exposure assessments should be conducted by a qualified Industrial Hygienist for
all tasks involving dross handling. Engineering controls or other measures
(e.g., approved respiratory protection) may be necessary to reduce dust and
beryllium concentrations depending on the exposure
potential.
Good industrial hygiene
practices, including reducing beryllium exposures to as low as reasonably
achievable, are recommended. Where employees are exposed to beryllium above the
occupational exposure limits or where excessive contamination of clothing with
beryllium is possible, adequate protective clothing should be provided to
prevent contamination of personal clothing. Personnel assigned to launder such
clothing should be advised of beryllium’s presence and potential health
effects.
Sampling to establish
lead exposures are advised where exposures to airborne particulate or
fumes are possible. Consult OSHA Lead Standard 29 CFR 1910.1025 for specific
health/industrial hygiene precautions and requirements to follow when handling
lead compounds.
Personnel who handle and work
with molten metal should utilize primary protective clothing like face
shields; fire resistant tapper’s jackets, leggings, spats and similar equipment
to prevent burn injuries. In addition to primary protection, secondary or
day-to-day work clothing that is fire resistant and sheds metal splash is
recommended for use with molten metal.
Exposure
Guidelines
A: General Product
Information
The ACGIH has proposed a new
Threshold Limit Value for Beryllium of 0.2 ug/m3 TWA. The U.S. Department of
Energy has proposed an Action Level for Beryllium of 0.5 ug/m3
TWA.
B: Component Exposure
Limits
Aluminum
(7429-90-5)
ACGIH metal dust, as Al: 19
mg/m3 TWA
OSHA total dust, as Al: 15
mg/me TWA; respirable fraction, as Al: 5 mg/m3 TWA
Silicon
(7440-21-3)
ACGIH 10 mg/m3
TWA
OSHA total dust: 15 mg/m3
TWA; respirable fraction: 5 mg/m3 TWA
Manganese
(7439-96-5)
ACGIH as Mn, 0.2 mg/m3
TWA
OSHA compounds, as Mn: C5
mg/m3; fume, as Mn: C 5 mg/m3
OSHA compounds, as Mn: C5
mg/m3; fume, as Mn: C 5 mg/m3
Lead
(7439-92-1)
ACGIH 0.05 mg/m3
TWA
OSHA as Pb: 50 ug/m3 TWA PEL:
30 ug/m3 action level: Poison (see 29 CFR 1910.1025)
Beryllium
(7440-41-7)
ACGIH 0.002 mg/m3
TWA
ACGIH 0.01 mg/m3
STEL
OSHA C 5
ug/m3
OSHA 2 ug/m3 TWA; 25 ug/m3 30
minute peak per 8-hour shift.
C: Additional Compounds
Which May be Formed During Processing
Magnesium oxide
(1309-48-4)
ACGIH 10 mg/m3
TWA
OSHA total particulate: 15
mg/m3 TWA
Alumina (non-fibrous)
(1344-28-1)
ACGIH as Al: 10 mg/m3 TWA
(The value is for total dust containing no asbestos and < 1% crystalline
silica)
OSHA total dust: 15 mg/m3
TWA; respirable fraction: 5 mg/m3 TWA
Zinc oxide
(1314-13-2)
ACGIH fume: 5 mg/m3 TWA;
dust: 10 mg/m3 TWA (The value for Zinc oxide ‘dust’ is total dust containing no
asbestos and < 1% crystalline silica)
ACGIH fume: 10 mg/m3
STEL
OSHA fume: 5 mg/m3 TWA; total
dust: 15 mg/m3 TWA; respirable fraction: 5 mg/m3 TWA
Silica fume (amorphous)
(69012-64-2)
ACGIH 2 mg/m3 TWA (This value
is for the respirable fraction of the silica dust)
***Section 9 – Physical & Chemical Properties***
Physical State
Solid metal
Appearance Silvery-white
Boiling
Point
2030 F (1110 C) Melting Point 1202 F(650 C)
Vapor
Pressure
Not applicable
Vapor Density Not applicable
Solubility
Water
None Specific Gravity See Density
Density
1.75 g/cm (0.063 lb/in pH Level Not
applicable
Odor
None
Odor Threshold Not applicable
Octanol-Water
Coefficient Not
Applicable
***Section 10 – Chemical Stability & Reactivity Information***
Stability
Stable under normal
conditions of use, storage and transportation as shipped.
Conditions to
Avoid
Chips, fines, dust and molten
metal are considerably more reactive with the following:
= Water: Slowly generates flammable/explosive hydrogen gas and
heat. Generation rate is greatly increased with smaller particles (e.g., fines
and dusts). Molten metal can react violently/explosively with water or moisture,
particularly when water is entrapped.
= Heat: Oxidizes at a rate dependent upon temperature and
particle size. Supports ignition above 950 F (510 C) and burns extremely
vigorously with white, hot flame.
= Strong
Oxidizers: Violent reaction with
considerable heat generation.
= Acids and alkalis:
Reacts to generate flammable/explosive
hydrogen gas. Generation rate is greatly increased with smaller particles (e.g.,
fines and dusts).
= Halogenated
compounds: Reacts with chlorine and
iodine.
***Section 11 – Toxicological Information***
Health Effects of
Ingredients
A: General Product
information
No information available for
product.
B: Component Analysis –
LD50/LC50
Silicon
(7440-21-3)
Oral LD50 Rat: 3160
mg/mk
Manganese
(7439-96-5)
Oral LD50 Rat: 9
gm/kg
Carcinogenicity
A: General Product
Information
No information available for
product.
B: Component
Carcinogenicity
Lead
(7439-92-1)
ACGIH elemental, as Pb; A3 –
animal carcinogen
IARC monograph 23, Supplement
7; 1987 (and lead compounds, evaluated as a group)
Beryllium
(7440-41-7)
ACGIH as Be: A1-confirmed
human carcinogen
IARC Monograph 58; 1993 (and
beryllium compounds; evaluated as a group)
NTP Suspect Carcinogen;
(under Beryllium and Certain Beryllium Compounds)
*** Section 12 – Ecological Information***
Ecotoxity
A: General Product
Information
No information available for
product.
B: Component Analysis –
Ecotoxicity – Aquatic Toxicity
No ecotoxicity data was found
for this product’s components.
Environmental
Fate
No information available for
product.
***Section 13 – Disposal Considerations***
Disposal
Instructions
Reuse or recycle material
whenever possible.
US EPA Waste Number &
Descriptions
A: General Product
Information
RCRA Status: Not federally
regulated in the U.S. Otherwise, characterize in accordance with applicable
regulations (40 CFR 261 or state equivalent in the U.S.)
B: Component Waste
Numbers
RCRA waste codes other than
described under Section A may apply depending on use of product. Refer to 40 CFR
261 or state equivalent in the U.S.
***Section 14 – Transportation Information***
Special
Transportation:
PSN #1
PSN #2
Footnotes:
(1)
(2)
US DOT Shipping
Not Regulated
Magnesium alloys
Name:
Hazard Class:
4.1
UN NA Number:
UN 1869
Packing Group:
III
RQ:
Other – Tech
Name:
Other – Marine
Pollutant
Footnotes:
(1) When “Not regulated”,
enter the proper freight classification, MSDS Number”, and “Product Name” on the
shipping paperwork.
(2) Regulated when containing
more than 50 percent magnesium in pellets, turnings or
ribbons.
Canadian TDG Hazard Class
& PIN: #1 Not regulated; #2 4.1, UN 1869
***Section 15 – Regulatory Information***
US Federal
Regulations
A: General Product
Information
All electrical equipment must
be suitable for use in hazardous atmospheres involving aluminum powder in
accordance with 29 CFR 1910.307. The National Electical Code, NFPA 70, contains
guidelines for determining the type and design of equipment and installation
which will meet this requirement.
B: Component
Analysis
This material contains one or
more of the following chemicals required to be identified under SARA Section 302
(40 CFR 355 Appendix A), SARA Section 313 (40 CFR 372.65) and/or CERCLA (40 CFR
302.4).
Aluminum
(7429-90-5)
SARA 313: form R reporting
required for 1.0% de minimis concentration (fume or dust
only).
Zinc
(7440-66-6)
SARA 313: form R reporting
required for 1.0% de minimis concentration (only fume or
dust).
CERCLA: final RQ = 1000
pounds (4.54 kg) (no reporting of releases of this hazardous substance is
required if the diameter of the solid metal released is equal to or exceeds
0.004 inches).
Manganese
(7439-96-5)
SARA 313: form R reporting
required for 1.0% de minimis concentration.
Lead
(7439-92-1)
SARA 313: form R reporting
required for 0.1% de minimis concentration.
CERCLA: final RQ = 10 pounds
(4.54 kg) (no reporting of releases of this hazardous substance is required if
the diameter of the pieces of the solid metal released is equal to or exceeds
0.004 inches).
Beryllium
(7440-41-7)
SARA 313: form R reporting
required for 0.1% de minimis concentration.
CERCLA: final RQ = 10 pounds
(4.45 kg) (no reporting of releases of this hazardous substance is required if
the diameter of the pieces of the solid metal released is equal to or exceeds
0.004 inches).
Sara 311/312 Physical and
Health Categories:
Immediate (acute) Health
Hazard: Yes, if particulates/fumes
generated during
processing.
Delayed (chronic) Health
Hazard: Yes, if particulates/fumes
generated during
processing.
Fire
Hazard: No
Sudden Release of
Pressure: No
Reactive: Yes, if molten
State
Regulations
A: General Product
Information
PENNSYLVANIA “Special
Hazardous Substance”: Beryllium
Chemical(s) known to the
State of California to cause cancer: Beryllium, Lead
Chemical(s) known to the
State of California to cause reproductive/developmental effects:
Lead
B: Component Analysis –
State
The following components
appear on one or more of the following state hazardous substances
lists:
Component CAS# CA FL MA MN
NJ PA
Magnesium 7439-95-4 Yes Yes
Yes No Yes Yes
Aluminum 7429-90-5 Yes Yes
Yes Yes Yes Yes
Zinc 7440-66-6 Yes Yes Yes No
Yes Yes
Silicon 7440-21-3 No No Yes
Yes Yes Yes
Manganese 7439-96-5 Yes Yes
Yes Yes Yes Yes
Lead 7439-92-1 Yes Yes Yes
Yes Yes Yes
Beryllium 7440-41-7 Yes Yes
Yes Yes Yes Yes
The following statement(s)
are provided under the California Safe Drinking Water and Toxic Enforcement Act
of 1986 (proposition 65):
WARNING! This product
contains a chemical known to the state of California to cause
cancer.
WARNING! This product
contains a chemical known to the state of California to cause
Reproductive/developmental
effects.
Other
Regulations
General Product
Information
In reference to Title VI of
the Clean Air Act of 1990, this material does not contain nor was it
manufactured using ozone-depleting chemicals.
Alloy Compositions
(Maximum)
Alloy Mg Al Zn Si Mn Pb Be
Fe Ti Ca Na Sn Cu Ni
AM50A 95.2 5.3 0.20 0.05
0.50 0.01 0.0015 <0.01 0.01 0.01 0.01 0.01 <0.01
<0.01
AM60B 94.1 6.4 0.20 0.05
0.50 0.01 0.0015 <0.01 0.01 0.01 0.01 0.01 <0.01
<0.01
AS21F 97.2 2.5 0.25 1.2 0.50
0.01 0.0015 <0.01 0.01 0.01 0.01 0.01 <0.01 <0.01
AS41B 95.3 4.8 0.10 1.4 0.60
0.01 0.0015 <0.01 0.01 0.01 0.01 0.01 0.02 <0.01
ASTM 99.8 0.05 0.05 -- 0.10
0.01 -- -- -- 0.05 0.05 0.01 0.02 <0.01
B93/B93A1-94A
AZ91D 90.9 9.5 0.90 0.05
0.40 0.01 0.0015 <0.01 0.01 0.01 0.01 0.01 0.03
<0.01
Key-Legend:
ACGIH
American Conference of Governmental Industrial
Hygienists
AICS
Australian Inventory of Chemical Substances
CAS
Chemical Abstract Service
CERCLA
Comprehensive Environmental Response, Compensation and Liability
Act
CFR
Code of Federal Regulations
CPR
Cardio-pulmonary Resuscitation
DOT
Department of Transportation
ECOIN
European Core Inventory
EPA
Environmental Protection Act
IARC
International Agency for Research on Cancer
LC
Lethal concentration (50 percent kill)
LC
Lowest published lethal concentration
LD
Lethal dose (50 percent kill)
LD
Lowest published lethal dose
LFL
Lower Flammable Limit
NFPA
National Fire Protection Association
NIOSH
National Institute for Occupational Safety and
Health
NTP
National Toxicology Program
OEL
Occupational Exposure Limit
OSHA
Occupational Safety and health Association
PEL
Permissible Exposure Limit
PIN
Product Identification Number
RCRA
Resource Conservation and Recovery Act
SARA
Superfund Amendments and Reauthorization Act
STEL
Short Term Exposure Limit
TCLP
Toxic Chemicals Leachate Program
TDG
Transportation of Dangerous Goods
TLV
Threshold Limit Value
TSCA
Toxic Substance Control Act
TWA
Time Weighted Average
UFL
Upper Flammable Limit
Atm
Atmosphere
Cm
Centimeter
g.gm
gram
in
inch
kg
kilogram
lb
pound
m
meter
mg
milligram
ml,ML
Milliliter
mm
millimeter
mppcf
million particles per cubic foot
n.o.s.
not otherwise specified
ppb
parts per billion
ppm
parts per million
psia
pounds per square inch absolute
u
micron
ug
microgram
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