GPS Safety Summary Reference No. : JIPS_MSP_EM-4001_EN

GPS/JIPS Safety Summary
1. SUBSTANCE NAME
Silicon carbide (CAS No. 409-21-2)

2. GENERAL STATEMENT
Compared to Si (silicon)-based power semiconductors, which are currently mainstream, SiC(Silicon carbide)-based power semiconductors are superior in high temperature resistance, highvoltage resistance, and large current characteristics. As a result, demand is rapidly increasing for awide range of applications such as electric vehicles, railways, and industrial equipment, as it
contributes to energy saving, high efficiency, and miniaturization of power modules. Appropriate
protective equipment should be worn during use to protect eyes, skin and avoid inhalation.

3. CHEMICAL IDENTITY
Item
Chemical orname
Trade name
Other No.

Description
generic Silicon carbide

Chemical Formula
Source/References

4H-SiC epitaxial wafer
Japan: Chemical Substances Control Law (1)-174
Japan: Industrial Safety and Health Act, existing chemical substance
SiCSection 3 of the SDS issued by Resonac Corporation

4. USES AND APPLICATIONS
Main uses

DC/AC converter for solar power generation、High efficiency inverter
for EV、Power inverters for railways and industrial equipment, etc.

5. PHYSICAL/CHEMICAL PROPERTIESThe product is light green crystals. In normal conditions, this product is an extremely stable
substance and is stable against heating, water, air/oxygen, and many chemicals such as acids, but
it reacts when mixed with strong oxidizing agents. So, it should be stored away from contact withstrong oxidizing agents.
Appearance
ColourOdour
Melting point/Boilingpoint
Decomposition
temperatureDensity
Sources/references

SolidLite greenodourless
No data applicable/ No data applicable
2700℃
3.2 g/cm³Section 9 and 10 of the SDS issued by Resonac Corporation

6. HEALTH EFFECTS
Effect assessment
Acute toxicity (oral)

Results （GHS Hazard Classification）
Classification not possible
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Acute toxicity (dermal)
Acute toxicity (inhalation: gas)
Acute toxicity (inhalation: vapours)
Acute toxicity (inhalation: dust, mist)
Skin corrosion/irritation
Serious eye damage/eye irritation,
Respiratory sensitisation
Skin sensitisation
Germ cell mutagenicity
Carcinogenicity
Reproductive toxicity
Specific target organ toxicity — Single exposure,Specific target organ toxicity (repeatedexposure)
Aspiration hazard
Sources/references

Classification not possible
Not applicable
Classification not possible
Classification not possible
Classification not possible
Classification not possible
Classification not possible
Classification not possible
Classification not possible
Classification not possible
Classification not possible
Classification not possible
Classification not possible
Classification not possible
Section 2 and 11 of SDS issued by Resonac
Corporation• GHS (Globally Harmonized System of Classification and Labelling of Chemicals): A system that classifies chemicals
according to the type and degree of hazards, labels the information, and provides safety data sheets according toglobally harmonized rules.
• Not applicable: Since the priority of physical state, chemical structure, chemical property, and hazard items used inthe GHS classification procedures does not fall under the category, it is not subject to the classification for thecategory.
• Not classified: Sufficient information has been obtained to implement the GHS classification, and as a result of theclassification, it does not fall under any of the hazard categories specified in the GHS. It is considered to be a lowerhazard.
• Classification not possible: There is not enough information for GHS classification, and classification is not possible.

7. ENVIRONMENTAL EFFECTS
Effect assessment
Hazardous to the aquatic environment, shortterm (acute)Hazardous to the aquatic environment, longterm (chronic)
Hazardous to the ozone layer
Sources/references

Results （GHS Hazard Classification）
Classification not possible
Classification not possible
Classification not possible
Section 2 and 11 of SDS issued by Resonac
Corporation

Environmental fate/dynamics
Mobility in soil
No data available
Persistence/degradabili No data available
ty
Bioaccumulation
No data available
potential
Conclusion aboutThe criteria for persistent bioaccumulative and toxic (PBT; remaining
PBT/vPvB
persistently in the environment and possessing high bioaccumulation
potential and toxicity) and very persistent and very bioaccumulative(vPvB; remaining very persistently in the environment and possessing
very high bioaccumulation potential) chemicals are believed toinapplicable.
Sources/references
Sections 12 of the SDS issued by Resonac Corporation

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8. EXPOSURE
Details
Occupational exposures

Consumer exposures
Environmental exposuresPrecautions

Exposure potentials through main uses
During batch and other process operations, there is a potential fordermal and inhalation exposure to operators during maintenance,
sampling, filling, emptying, and equipment failure (PROC 4).
There is a potential for dermal or inhalation exposure in operators
due to dust generation, etc. in the manufacturing operation offormulation products or articles by tableting, compressing,squeezing, and pelletizing this product (PROC 14).
This product is not used directly by general consumers.
Although emission to the environment is limited because theproduct is typically manufactured and used in a closed process,the product can be released primarily into the atmospheric andwater environment during the manufacturing process (ERC 1).
If there is a possibility of exposure in other uses, take appropriate
measures with reference to recommended risk management
measures.

9. RISK MANAGEMENT RECOMMENDATIONS
Recommended risk management measures can minimize risks to workers, consumers, and theenvironment from Section 8 exposure scenarios.
Details
WorkerRisk management recommendations
Technical measures
To protect workers from dust, this product has been handled in aplace with forced general ventilation using a local exhaust system
and wear appropriate protective equipment. Install facilities for eyeand body washing near the handling place.
Local exhaust and general ventilation
In order to protect from dust generated by processing thisproduct, handle this product in an area where forced general
ventilation is possible and use local exhaust ventilation. Since
there is a possibility of exposure during transfer work to acontainer, etc., should be handled in a place with and forced
general ventilation and use local exhaust ventilation. When totransfer of this product to containers in dedicated equipment,
should be handled in a place with and forced general ventilation
and use local exhaust ventilation. For molding work that does not
generate dust, handle in a well-ventilated room with a local
exhaust system.
Permissible concentration
The American Conference of Governmental Industrial Hygienists(ACGIH) has published the time-weighted average (TLV-TWA) of
0.1 f/cc (F)、TLV-TWA 10 mg/m3 (I,E), 3 mg/m3 (R,E).
Manage and control the concentration below these values.
Protective equipment
For work that generates dust by processing this product, wear
respiratory protection (dust mask with a collection efficiency 90%
or higher) and chemical-resistant rubber gloves (APF5 [protectionefficiency 80%]) to avoid contact with the skin.
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Consumer
Environment

Special notes (emergencymeasures in case of leakage,etc.)

Precautions【Examples of protective equipment】
Respiratory protection : dust mask with a collection efficiency 90%
or higher
Skin protection : chemical-resistant rubber gloves (APF5[protection efficiency 80%])
Eye protection : safety eyewear/face protection
Otherskin and body protection : appropriate safety clothing
Precautions
The operation manager should educate operators about theselection of appropriate protective equipment, proper usage
method, and control method of the work site.
This product is not used directly by general consumers.
Install appropriate wastewater treatment facilities and exhaust gas
treatment facilities. In addition, take measures to prevent leakage,and pay attention to periodic confirmation of discharge volume,
daily control, and handling.
Precautions to human body, protective equipment, andemergency measures
In case of a leakage, wear appropriate protective equipment toprevent inhalation, eye and face contact, and skin contact of thisproduct.
Environmental precautions
Avoid release of leaked product into the environment.
For normal handling, emergency response, disposal, andtransportation control measures, refer to sections 4, 5, 6, 7, 8, 13,
and 14 of the SDS issued by Resonac Corporation.

10. STATE AGENCY REVIEW
Hazard assessment
International Chemical Safety
Cards

Situations of review
International Chemical Safety CardICSC: 1061
https://www.ilo.org/dyn/icsc/showcard.display?p_lang=en&p_car
d_id=1061&p_version=2

OECD HPV
NITE-CHRIP（NITE ChemicalRisk Information Platform）
GHS Classification Results by
the Japanese Government

None
https://www.nite.go.jp/en/chem/chrip/chrip_search/srhInput
https://www.nite.go.jp/chem/english/ghs/20-moe-2002e.html

11. REGULATORY INFORMATION／GHS CLASSIFICATION AND LABELLING INFORMATION
Regulatory information only in Japan
Applicable laws
Regulatory situations
Act on the Regulation of
Manufacture and Evaluationof Chemical Substances

Excluding priority assessment chemical substances（Article 2-5 ofthe Act）Industrial Safety andHealth Act

Dangerous Articles and Harmful Substances Whose Names, etc.
Should Be Notified（Article 57-2 of the Act, Article 18-2 item(ⅰ)
and item(ⅱ) appended Table No. 9 of the Enforcement Order）
Silicon carbide （Cabinet Order Number : 336）

Silicon carbide

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Exemption of Solids from the Obligation of Labelling （Out ofpreparations (mixtures) containing substances for which thelabelling is obligatory, those that do not take any form other thansolid and are not made into a powdery state while beingtransported or stored are exempted from the obligation oflabelling.）
Poisonous and Deleterious
Substances Control Act

Not applicable

Foreign Exchange andForeign Trade Act

Cabinet Order on Export Trade Control appended Table 1 item 7,10, 16

Act on the Assessment ofReleases of Specified
Chemical Substances in theEnvironment and thePromotion of Management
Improvement and Transfer
Register / PRTR)[After revision (after April 1, 2023)]
Class 1 Specified Chemical Substances （Article 2-1 of the Act,
Enforcement Ordinance Article 1 Appended Table 1）
Silicon carbide (Control number: 667) (100 %)Hazards
For all items, it does not fall under the GHS Classification criteria.
Labelling Information
Hazard pictograms (GHS): No labelling applicable
Signal word (GHS): No labelling applicable
Hazard statements (GHS): No labelling applicable

12. CONTACT INFORMATION
CompanyAddress
Departments
Tel. / Fax

Resonac Corporation
13-9, Shiba Daimon 1-Chome, Minato-ku, Tokyo 105-8518 Japan
Device Solutions Division+81-494-23-6127 / +81-494-25-0830

13. DATE OF ISSUE / REVISION, ADDITIONAL INFORMATION
Date of issue: December 27, 2022
Revisions:
Date of revision
Revised sectionJanuary 1, 2023
3, 6, 7, 10-13

Revised item
update to the latest information

VersionRev.2

The contents are based on the safety data sheet (SDS) revised on January 1, 2023.
Special instructions: none

14. DISCLAIMER
The safety summary is part of the effort for the voluntary management of chemical substance inthe chemical industry (GPS/JIPS: Japan Initiative of Product Stewardship). The purpose of thesafety summary is to provide information on the safe handling of the product as an overview andnot to provide professional information, such as the risk evaluation process and its impact onhuman health and the environment. This document is not meant to serve as an alternative to risk
evaluation, such as a Safety Data Sheet (SDS) or a Chemical Safety Report (CSR). This safetysummary is being written as accurately as possible based on data such as laws, materials, andinformation available at the time of publication, but it does not include all data. It does not
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guarantee anything.

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