SDS No.17 Taimicron
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Revision date : 2023/11/01

1. PRODUCT AND COMPANY IDENTIFICATION
Product name : Taimicron (High purity alumina)
Company name : Taimei Chemicals Co., Ltd. Kitatono factory
Address: 3746, Minamiminowa-mura, Kamiina-gun, Nagano, Japan.
TEL : +81-265-78-8080
FAX : +81-265-73-2400
Tokyo Sales office
TEL : +81-3-3563-2491
FAX : +81-3-3563-2498
Recommended use and restrictions on use: high-strength/wear-resistant materials, electronic materials,
optical materials, catalysts.

2. HAZARDS IDENTIFICATIONIn the GHS classification it is as follows, but it is not dangerous goods.
However, please take safety measures.
１）
GHS Classification
Health hazards
Specific target organ toxicity (single exposure): Category 3
Specific target organ toxicity (repeated exposure) : Category 1※ Classification categories other than the above are "Not applicable" or"Classification not possible".
GHS Label elements
Pictograms or Symbols :Signal word
: Danger
Hazard statements : May cause respiratory irritation. (H335)
Causes damage to organs through prolonged orrepeated exposure.(H372)Precautionary statements【Prevention】: Do not eat, drink or smoke when using this. (P270)
Use only outdoors or in a well-ventilated area. (P271)
Do not breathe the dust. (P260)
Wash face and hands thoroughly after handling. (P264)
Wear protective gloves/dust mask/protective glasses.
【Response】: If inhaled; After rinsing the mouth, remove person to fresh air andkeep comfortable for breathing. (P304＋P340)
If you feel unwell, get medical advice/attention.(P314)【Storage】: Store in a well-ventilated place. Keep container tightlyclosed. (P403＋P233)
Store locked up. (P405)【Disposal】: Dispose of contents/container in accordance with local/regional/national/international regulations. (P501)

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3. COMPOSITION/INFORMATION ON INGREDIENTS
Substance or Mixture : Chemical substanceChemical name: Aluminium oxide (Another name : Alumina)
Chemical formula: Al2O3
Concentration: More than 90% (as Al2O3)
CAS RN: 1344-28-1

4. FIRST-AID MEASURES
If inhaled: After rinsing the mouth, remove person to fresh air andkeep comfortable for breathing.
If you feel unwell, get medical advice/attention.
If on skin
: Wash with soap and plenty water.
If skin irritation occurs, get medical advice/attention.
If in eyes
: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do. Continue rinsing.
If eye irritation persists, get medical advice/attention.
If swallowed : After rinsing the mouth, drink water.
If you feel unwell, get medical advice.

5. FIRE-FIGHTING MEASURES
Suitable extinguishing media: Use any means suitable for extinguishing surrounding fire.
Unsuitable extinguishing media: NoneSpecific hazards arising from the chemical: NoneSpecial protective actions for fire-fighters: Firefighters should wear suitable protective equipment.

6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures: Wear suitable protective equipment when handling leaks. (section 8).
Environmental precautions: Prevented from flowing into the rivers.
Please contact when impact on humans and aquatic life is a concern.
Methods and materials for containment and cleaning up: Sweep up spillage in an empty container that can be sealed.
Rinse the uncollectible portion with plenty of water.
Prevention of secondary disaster: Please covered with a sheet for shatterproof.

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7. HANDLING AND STORAGEHandlingTechnical measures: Wear suitable protective equipment (section 8).
Precautions for safe handling : Since dust is likely to be generated, local exhaust orgeneral ventilation should be performed.
Handle gently so as not to generate dust, and do notinhale dust.
Hygiene measure: Wash face and hands thoroughly after handling.
Do not eat, drink or smoke when using this.
Storage
Conditions for safe storage : Store the container tightly closed and locked in awell-ventilated place.
Safe packaging materials: Use a sealable container.

8. EXPOSURE CONTROLS/PERSONAL PROTECTION
２）
Limit value : Japan Society of Industrial Hygiene advisory value; Applicable the first-class dust as alumina
Inhalation dust = 0.5 mg/m３ ,Total dust = 2 mg/m３３）
ACGIH advisory value; As insoluble aluminium salts
TWA(Time Weighted Average) = 1 mg/m３
Equipment measures: Install the following equipment as necessary.
(local exhaust ventilation, general ventilation,safety shower, hand wash, eyewash equipment)
Protective equipment
Respiratory protection: Wear a general-type dust mask that has passed the model test.
Hand protection: Wear rubber gloves, etc.
Eye and face protection : Wear goggle-type protective glasses or a face shield.
Skin and body protection : Wear dust-proof clothing as necessary.

9. PHYSICAL AND CHEMICAL PROPERTIES
Physical state: PowderColor: WhiteOdor: NoneMelting point /freezing point: 2000～2100 ℃
Boiling Point or initial boiling point and boiling range : About 3000 ℃
Flammability: Non flammableLower and upper explosion limit/flammability limit : No data
Flash point: No data
Auto-ignition temperature: No data
Decomposition temperature: No data
pH: No data
Kinematic viscosity: No data
Solubility: Insoluble in water
Insoluble in acid/alkali at normal pressure
Partition coefficient n-octanol/water (log value) : No data

SDS No.17 Taimicron
Vapor pressure
Density and/or relative density
Relative vapor density
Particle characteristics

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: No data: 3.6～3.98: No data: Fine powder

10. STABILITY AND REACTIVITY
Reactivity: NoneChemical stability: Chemically stable
Possibility of hazardous reactions : NoneConditions to avoid: Generation and diffusion of dust
Incompatible materials: NoneHazardous decomposition products: None

11. TOXICOLOGICAL INFORMATION
Acute Toxicity: LCLo = 357 mg/m３ (mouse 60 days,inhalation)
LD50 > 5,000 mg/kg (oral-rat)
Skin corrosion/irritation: No data
Serious eye damage/irritation: No data
Respiratory or skin sensitization : No data
Germ cell mutagenicity: No data
Carcinogenicity: No data
Reproductive toxicity: No data
Specific target organ toxicity (single exposure): There is a description of upper respiratory１）
tract irritation (ICSC-2000)
Specific target organ toxicity (repeated exposure): There is a description that adenomyosis wasobserved in the lung (EHC-1997) １）
Aspiration hazard: No data

12. ECOLOGICAL INFORMATION
Ecotoxicity
Persistence and degradability
Bioaccumulative potential
Mobility in soil
Harmfulness to the Ozone layer

４）１）: No data: None: No data: None: No data

13. DISPOSAL CONSIDERATIONSDisposal methods: Avoid release to the environment.
When disposing, please follow all regulations in your country.
Contaminated containers and packaging: After washing with water, should be disposed of in accordancewith all regulations of your country.

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14. TRANSPORT INFORMATION
UN Number: NoneTransport hazard class : Not applicable
Packing group: Not applicable
IMDG code: Not applicable
IATA DGR／ICAO TI: Not applicable
Follow all regulations in your country.
Safety measures during transportation: Be careful not to break the packaging bag, get wet with water,or collapse the load.
See Section 7. HANDLING AND STORAGE.

15. REGULATORY INFORMATION
After referring to this SDS, please managing this product to conforms against all
regulations of your country or region.

16. OTHER INFORMATIONREFERENCES
・ Japanese Industrial Standards Z 7253 (2019)1) "GHS Classification Results" published by the National Institute ofTechnology and Evaluation of Japan.
2) Japanese Society of Industrial Hygiene"Advisory value for permissible concentrations, etc."(2022)
3) ACGIH "Threshold Limit Values for Chemical Substances and Physical Agentsand Biological Exposure Indices."(2018)
4) Internal documents
IMPORTANT NOTE:
Although the information in this SDS was obtained from sources which we believe tobe reliable, it cannot be guaranteed. In addition, this information may be used in amanner beyond our knowledge or control. The information is therefore provided foradvice purposes only, without any representation or warranty express or implied.