1 / 9 Page
CANON OPTRON INC.
SDS Number：
Product Name：

EM04
ＭｇＯ

SAFETY DATA SHEET
rev. 8.0

SECTION 1

2013/10/16
2024/3/15

Chemicals and company identification

Product nameＭｇＯ

Product code

EM04

Company nameCANON OPTRON INC.

Address

1744-1, Kanakubo, Yuki-shi, Ibaraki-ken, 307-0015 Japan

Section nameSales Department

Telephone number+81-296-21-3700

Fax number+81-296-21-3770

Emergency telephone tumber+81-296-21-3700

Use

Vacuum deposition material

SECTION 2

Date of Issue
Revised Date

Hazards identification

GHS Classification （A classification by JIS Z 7252 "classification methods such as chemical substances based on GHS"）
Physical hazards

Explosives

Classification not possible

Flammable gases

Not applicable

Aerosols

Not applicable

Oxidizing gases

Not applicableGas under pressure

Not applicable

Flammable liquids

Not applicable

Flammable solids

Classification not possible

Self-reactive substances and mixtures

Classification not possible

Pyrophoric liquids

Not applicable

Pyrophoric solids

Classification not possible

Self-heating substances and mixtures

Classification not possible

Substances and mixtures which,inClassification not possible
contact with water,emit flammable gases

Health hazards

Oxidizing liquids

Not applicable

Oxidizing solids

Classification not possible

Organic peroxides

Classification not possible

Corrosive to metals

Classification not possible

Desensitize explosives

Classification not possible

Acute toxicity(oral)

Not classified

Acute toxicity(dermal)

Classification not possible

Acute toxicity (Inhalation: Gases)

Not applicable

Acute toxicity (Inhalation: Vapors)

Classification not possible

Acute toxicity (Inhalation: Dusts andmists)

Classification not possible

2 / 9 Page
CANON OPTRON INC.
SDS Number：
Product Name：EM04
ＭｇＯ

SAFETY DATA SHEET
rev. 8.0Environmental hazards

Date of Issue
Revised Date

Skin corrosion/irritation

Classification not possible

Serious eye damage/eye irritation

Category 2A

Respiratory sensitization

Classification not possible

Skin sensitization

Classification not possible

Germ cell mutagenicity

Classification not possible

Carcinogenicity

Classification not possible

Reproductive toxicity

Classification not possible

Reproductive toxicity, effects on or via
lactation

Classification not possible

Specific target organ toxicity(singleexposure)

Category 3

Specific target organ toxicity(repeatedexposure)Classification not possible

Aspiration hazard

Classification not possibleHazardous to the aquatic environment
Short-term(acute)Classification not possible

Hazardous to the aquatic environmentLong-term(chronic)

Classification not possible

Hazardous to the ozone layer

Classification not possible

Label elements
hazard Pictograms

Exclamation
Exclamation

Signal word

Warning

Dangerous goods hazard
information

Causes serious eye irritation.
May cause respiratory irritation.

Precautionary statements【Safety measures】

Avoid breathing dust/fume/gas/mist/vapours/spray.
Wash hands thoroughly after handling.
Use only outdoors or in a well-ventilated area.
Wear Protective glovess/protective clothing/eye protection/face protection.

【First-aid measures】

IF INHALED：Remove person to fresh air and keep comfortable for breathing.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contactlenses, if present and easy to do. Continue rinsing.
Call poison center or doctor/physician if you feel unwell.
If eye irritation persists: Get medical advice/attention.

2013/10/16
2024/3/15

3 / 9 Page
CANON OPTRON INC.
SDS Number：
Product Name：

EM04
ＭｇＯ

SAFETY DATA SHEET
rev. 8.0

SECTION 3

Date of Issue
Revised Date

【Storage】

Store in a well-ventilated place. Keep container tightly closed.
Store locked up.

【Disposal】

Dispose of contents/container in accordance with national regulations.

【Other hazards】-Composition/information on ingredients

Substance/Mixture

Substance

Chemical name

Magnesium oxide

Chemical formula

MgO

Concentration or concentration
range

99.9<CAS No.

1309-48-4

TSCA Inventry

Magnesium oxide (MgO)

EINECS number

215-171-9

Radioactive information

Radioactive substances are not used as the material. Therefore, there is no
reason that ionizing radiation would be generated.

SECTION 4

2013/10/16
2024/3/15

First aid measuresInhalation

Remove person to fresh air and keep comfortable for breathing.
Get medical advice/attention if you feel unwell.

Skin contact

Take off immediately all contaminated clothing. Rinse affected areas withwater/shower.
IF ON SKIN：Wash with plenty of soap and water.
If skin irritation or rash occurs: ：Get medical advice/attention.

Eye contact

Rinse cautiously with water for several minutes.Remove contact lenses, if presentand easy to do. Continue rising.
If eye irritation persists：Get medical advice/attention.

Ingestion

Rinse mouth.
Get medical advice/attention.

Most important symptoms andeffects, both acute and delayed

No data available

Protection of first aiders

Rescuers, wear suitable protective equipment as the situation demands.

Special precautions for physicians

No data available4 / 9 Page
CANON OPTRON INC.
SDS Number：
Product Name：

EM04
ＭｇＯ

SAFETY DATA SHEET
rev. 8.0

SECTION 5

Date of Issue
Revised Date

2013/10/16
2024/3/15

Firefighting measures

Suitable extinguishing media

It uses a water mist, dry chemicals, fire foam, carbon dioxide depending onneighboring fires.

Unsuitable extinguishing media

Because a fire might spread through the outskirts, It avoid direct stick irrigation.

Specific hazards

In the case of fires, a toxic decomposition product may occur.

Specific extinguishing methods

It performs the fire fighting from windward.
Restrict access to the area around the fire location to persons other than those
involved with the fire.
It moves a container from the fire area if not dangerous.

Special protective equipment for
firefighters

On the occasion of fire extinguishing work, it wears appropriate personal
protective equipment and rescue suit.

SECTION 6Accidental release measures

Personal precautions, protective
equipment, and emergency
procedures

It prohibits the entrance except the person concerned.
The worker wears appropriate personal protective equipment (in item of"8.revelation prevention and protection measures" reference) and avoids eyes,
contact and inhalation to skin.
Personal protective equipment for the individual, A mask with filter for theparticle depending on density out of the air.

Environmental precautions

It avoids an outflow to the environmental average of the product to havepossibilities to influence neighboring environment.

Methods and material forcontainment and cleaning up

The prohibition of handling and eating and drinking in neighboring of the storagearea.
It prevents the inflow to a drainage, a sewer, a basement or the closedown place.
It sweeps it and puts the material which it shed in a container. When you may
moisten it, it sweeps it after moistening it in order to avoid dust and puts it.
No data available

Secondary disaster prevention
measures

SECTION 7

Handling and storage

Precautions for safe handlingTechnical measures

Take measures for equipment as described in “8. Exposure controls/personalprotection” and wear protective equipment.

Safety handling precautions

Use it only at the outdoors or a good place of the ventilation.
It prevents diffusion of the dust.

Avoidance of contact

No contact with halogen-containing substances and strong acid.

Hygiene measures

Wash hands thoroughly after handling.
Do not eat, drink or smoke when using this product.

Conditions for safe storage,
including any incompatibilities
Safe storage conditions

You lock it, and keep it
Keep it at a good place of the ventilation. Sealing up a container.
It establishes the facilities of illumination necessary it stores danger, detriment inthe storage area or to handle it and the ventilation.
It avoids direct rays of the sun and keeps it in the cool and dark space.
It separates it from strong acid.
Drying.

5 / 9 Page
CANON OPTRON INC.
SDS Number：
Product Name：

EM04
ＭｇＯ

SAFETY DATA SHEET
rev. 8.0

Safety packaging material

SECTION 8

Date of Issue
Revised Date

2013/10/16
2024/3/15

It uses the container which it can seal up without damage and the leak.

Exposure controls/personal protection
MgO

Permissible concentration
ＡＣＧＩＨ

Appropriate engineering controls

TLV-TWA: 10 mg/㎥ of (II) (magnesium oxide)(2015 version)
In the work shop which dust produces, It use a device, an apparatus sealed up by
all means or a local ventilator.

Individual protection measures,such as personal protective
equipment

SECTION 9Respiratory protection

Dustproof mask

Hand protection

Protective gloves

Eye/face protection

Dust-proof glasses

Skin protection

Protective clothing

Physical and chemical properties

Appearance
Physical stateSolidForm

Pellets, granules

ColourWhiteOdour

NoneMgO
Melting point/freezing point

2800℃

Boiling point or initial boiling point
and boiling range

3600℃

Flammability

No data available

Upper/lower flammability orexplosive limits

No data available

Flash point

Noninflammability (ICSC (2010))

Auto-ignition temperature

Noninflammability (ICSC (2010))

Decomposition temperature

No data available

pH

10.3 (20 degrees Celsius, saturated solution) (GESTIS (2015))

Kinematic viscosity

No data available

Solubility
Water

Slightly soluble in water. (ICSC (2010))

Other solvents

Soluble in acid and ammonium salt solutions. Insoluble in ethanol (HSDB (2015)).

6 / 9 Page
CANON OPTRON INC.
SDS Number：
Product Name：

EM04
ＭｇＯ

SAFETY DATA SHEET
rev. 8.0

Partition coefficient: noctanol/water

No data available

Vapour pressure

0 mmHg (20℃) (NITE (2015))

Density and/or relative density

MIN3.2 ,MAX3.75 (WebKis-Plus (2015))（Density）

2013/10/16
2024/3/15※ (granular product) 3.58 2.1-2.3 (pellet) as MgO

Relative vapor density

No data available

Particle characteristics

No data available

Other information

No data available

SECTION 10Date of Issue
Revised Date

Stability and reactivity
MgOReactivity

Noncombustibility

Chemical stability

No data available

Possibility of hazardous reactions

There is a risk of explosion due to contact with aluminum powder, aniline
perchlorate, magnesium powder, or sulfur during heating.
Produces dangerous reactions with ammonia, strong acid, bromine pentafluoride,chlorine trifluoride, and phosphorus pentachloride.
Reaction with phosphorus pentachloride is accompanied by incandescence.
Contact with halogen-containing substances produces dangerous reactions orignition.
No data available

Conditions to avoid
Incompatible materials

There is a risk of explosion due to contact with aluminum powder, anilineperchlorate, magnesium powder, or sulfur during heating.
Produces dangerous reactions with ammonia, strong acid, bromine pentafluoride,chlorine trifluoride, and phosphorus pentachloride.
Reaction with phosphorus pentachloride is accompanied by incandescence.
Contact with halogen-containing substances produces dangerous reactions orignition.
Hazardous decomposition products No data available

SECTION 11

Toxicological information
MgO

Acute toxicity(oral)

From reported LD50 values of 3,870 mg/kg (males) and 3,990 mg/kg (females) for
rats (HSDB (Access on June 2015))

Acute toxicity(dermal)

No data available

Acute toxicity （Inhalation: Gases）

Solid (GHS definition)

Acute toxicity （Inhalation:Vapours）

Solid (GHS definition)

Acute toxicity （Inhalation: Dustsand mists）

No data available

Skin corrosion/irritation

No data available

Serious eye damage/irritation

Based on the information that a slight irritation of the eye was observed in 95
workers exposed to the dust of this substance (an unknown concentration)(ACGIH (7th, 2003)), it was classified in Category 2.

7 / 9 Page
CANON OPTRON INC.
SDS Number：
Product Name：

EM04
ＭｇＯ

SAFETY DATA SHEET
rev. 8.0

Date of Issue
Revised Date

2013/10/16
2024/3/15

Respiratory or skin sensitization

No data available

Germ cell mutagenicity

The classification is not possible due to lack of data. There is no in vivo data. As
for in vitro, it is reported that a bacterial reverse mutation test was negative(ACGIH (7th, 2003), HSDB (Access on June 2015)).

Carcinogenicity

As for humans, it is reported that excess cancers occurred in multiple organs bycombined occupational exposure to this substance and others, and specifictumors formed in exposure to this substance were the lip, stomach, and lungcancers based on the standardized incidence ratio (SIR). However, it is describedthat the interpretation of this result is limited because the number of subjects
were small and the level and duration of exposure to magnesium oxide wereunknown (ACGIH (7th, 2003)). Besides, there is no evidence of carcinogenicity inhumans by an inhalation route of magnesium oxide dust or fumes. It is pointed outthat the increased frequency of lung cancer observed in welders in the past is
likely caused by exposure to hexavalent chromium, not magnesium oxide (DFGOT
vol. 2 (1991)).
As for experimental animals, it is described that the substance wasintratracheally applied in hamsters at a dose of 2mg/week for 30 weeks andobserved for up to 100 weeks and as a result, the number of histiocytic
lymphomas increased (ACGIH (7th, 2003)). However, there is no carcinogenicity
test report according to the standard guidelines.
From the above, ACGIH classified this substance in A4 in carcinogenicity. Alsoin this classification, the substance was classified as "Classification not possible"
in this hazard class due to lack of data.

Reproductive toxicity

No data available

Specific target organ toxicity(single It is reported that this substance is irritating to the respiratory tract (ACGIH (7th,exposure)2003), DFGOT vol. 2 (1991), HSDB (Access on June 2015)), but no other acuteeffects were reported.
From the above, the substance was classified in Category 3 (respiratory tract
irritation).

Specific target organtoxicity(repeated exposure)

As for humans, a fume fever by occupational exposure was reported. However,
it is described that the exposure assessment in this plant was insufficient forassessing it is due to the effects to this substance alone. (ACGIH (7th, 2003))
There is no useful information on experimental animals. Therefore, thesubstance was classified as "Classification not possible."

Aspiration hazard

No data available

Other information

No data available8 / 9 Page
CANON OPTRON INC.
SDS Number：
Product Name：

EM04
ＭｇＯ

SAFETY DATA SHEET
rev. 8.0

SECTION 12

Date of Issue
Revised Date

2013/10/16
2024/3/15

Ecological information
MgO

Toxicity
Hazardous to the aquatic
environment Shortterm(acute)Hazardous to the aquatic
environment Longterm(chronic)

No data available

Persistence and degradablility

No data available

Bioaccumulative potential

No data available

Mobility in soil

No data available

Hazard to the ozone layer

No data available

Other adverse effects

No data available

SECTION 13

No data available

Disposal considerations

Waste treatment methods

Process is contracted to industrial waste disposers who received approval of aprefectural governor.

Contaminated container andcontaminated packaging

The container is recycled after being cleaned, or is appropriately processedaccording to the standards of related laws and regulations.
When disposing of empty containers, the contents should be completely removed.

SECTION 14

Transport information
MgO

International regulation
UN number

Not applicable

UN proper shipping nameNot applicable

UN classification

Not applicable

Transport hazard class

Not applicable

Packing group

Not applicable

Hazardous to the aquaticenvironment

No data available

Maritime transport in bulk
according to IMO instruments

No data available

Japanese lows and regulations

No data available

Special precautions for users

Requires retention of yellow card when transporting. 。
Ensure that the container is not damaged or leaking.
Ensure that loads are prevented from collapsing.
Conduct packaging, labeling, and transportation in accordance with applicable laws
and regulations.
Avoid direct sunlight.
Refer to “Accidental release measures.”

Special Provisions-9 / 9 Page
CANON OPTRON INC.
SDS Number：
Product Name：

EM04
ＭｇＯ

SAFETY DATA SHEET
rev. 8.0

SECTION 15

Date of Issue
Revised Date

2013/10/16
2024/3/15

Regulatoly information（Japan）
MgO

Occupational Safety and Health
Law

No data available

PRTR Law

No data available

Poisonous and Deleterious
Substances control Law

No data available

Labor Standards Act

No data available

Chemical substances control Law

No data available

Fire fighting Law

No data available

Air Pollution Control Act

No data available

Water Pollution Prevention Act

No data available

Water Supply Act

No data available

Sewerage Act

No data available

Marine Pollution Prevention Law

No data available

Waste Management and Public
Cleansing Act

No data available

NoteEnsure this material in compliance with federal requirements and ensure
conformity to local regulations.

SECTION 16

Other information

The Safety Data Sheet (SDS) has been prepared based on currently available materials, information and data, and may berevised based on new information. Further, the important points in the SDS are made for the purpose of normal handling.
When handling the user product in a specialized manner, take the appropriate safety measures for the application or method.
Further, Canon Optron Inc. has paid sufficient attention to the described contents of the SDS, but does not guarantee theaccuracy of its contents.
The SDS prepared by our company includes all findings from our investigation for reference. Not applicable to all items listed.

Literature Reference[WEB site]
National Institute of Technology and Evaluation Homepage
Japan Advanced Information Center of Safety and Health Homepage
Ministry of Health, Labour and Welfare Homepage[Regulatory review Tools]
ezCRIC+ (Japan Chemical Database Ltd)