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Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021
Date of issue for the 1st edition : 24/03/2014
Date of revision : 18/03/2021

Safety Data Sheet

1. Identification of the substance/mixture and of the company/undertaking
Product identifier:Product name: Perchloric acid（60%）
Reference number(SDS):23025jis_E1-4
Product type：
Reagent
Details of the supplier of the safety data sheet
Manufacturer/Supplier: JUNSEI CHEMICAL CO., LTD.
Address: 1-6, Ohmano-cho, Koshigaya-shi, Saitama 343-0844, Japan
Division: Quality Assurance Department
Telephone number: +81-48-986-6161
FAX: +81-48-989-2787
e-mail address: shiyaku-t@junsei.co.jp

2. Hazards identification
GHS classification and label elements of the product
Classification of the substance or mixture
PHYSICAL AND CHEMICAL HAZARDS
Oxidizing liquids: Category 1
Corrosive to metals: Category 1
HEALTH HAZARDS
Acute toxicity (Oral): Category 4
Skin corrosion/irritation: Category 1
Serious eye damage/eye irritation: Category 1
Carcinogenicity: Category 2
Reproductive toxicity: Category 2
Specific target organ toxicity - single exposure: Category 3 (Respiratory tract irritation)
Specific target organ toxicity - repeated exposure: Category 1(thyroid)(Note) GHS classification without description: Not classified/Classification not possible
Label elements

Signal word: Danger
HAZARD STATEMENT
H271-May cause fire or explosion; strong oxidizer
H290-May be corrosive to metals
H302-Harmful if swallowed
H314-Causes severe skin burns and eye damage
H318-Causes serious eye damage
H351-Suspected of causing cancer
H361-Suspected of damaging fertility or the unborn child
H335-May cause respiratory irritation
H372-Causes damage to organs through prolonged or repeated exposure
PRECAUTIONARY STATEMENT
Prevention
Obtain special instructions before use.

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Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021
Do not handle until all safety precautions have been read and understood.
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Keep/Store away from clothing/combustible materials.
Wear fire/flame resistant/retardant clothing.
Keep only in original container.
Do not breathe dust/fume/gas/mist/vapors/spray.
Use only outdoors or in a well-ventilated area.
Wash contaminated parts thoroughly after handling.
Wear protective gloves/protective clothing/eye protection/face protection.
Use personal protective equipment as required.
Do not eat, drink or smoke when using this product.
Response
In case of fire: Use appropriate media other than water for extinction.
In case of major fire and large quantities: Evacuate area. Fight fire remotely due to therisk of explosion.
Absorb spillage to prevent material damage.
Get medical advice/attention if you feel unwell.
IF exposed or concerned: Get medical advice/attention.
Immediately call a POISON CENTER or doctor/physician.
Call a POISON CENTER or doctor/physician if you feel unwell.
IF INHALED: Remove person to fresh air and keep comfortable for breathing.
IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
Wash contaminated clothing before reuse.
IF ON CLOTHING: Rinse immediately contaminated clothing and skin with plenty of water
before removing clothes.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if
present and easy to do. Continue rinsing.
IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
Storage
Store in a well-ventilated place. Keep container tightly closed.
Store locked up.
Store away from other materials.
Disposal
Dispose of contents/container in accordance with local/national regulation.
Specific Physical and Chemical hazards
Oxidizing material. Organic or combustible material may catch fire in contact with it.

3. Composition/information on ingredients
Mixture/Substance selection:
MixtureIngredient name:Perchloric acidContent (%):60.0～62.0
Chemical formula:ClHO4
Chemicals No, Japan:1-221
CAS No.:7601-90-3
MW:100.46
ECNO:231-512-4
Ingredient name:Water
Content (%):Residual quantity of the ingredient mentioned above
Chemical formula:H2O
CAS No.:7732-18-5

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Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021
MW:18.02
ECNO:231-791-2

4. First-aid measures
Descriptions of first-aid measures
General measures
Get medical attention/advice if you feel unwell.
Immediately call a POISON CENTER or doctor/physician.
Keep victim warm and quiet.
Call emergency medical service.
IF INHALED
Remove person to fresh air and keep comfortable for breathing.
Give artificial respiration if victim is not breathing.
Administer oxygen if breathing is difficult.
Call a POISON CENTER or doctor/physician if you feel unwell.
IF ON SKIN (or hair）
Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF ON CLOTHING: Rinse immediately contaminated clothing and skin with plenty of water
before removing clothes.
If skin irritation or rash 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
Rinse mouth. Do NOT induce vomiting.
Call a POISON CENTER or doctor/physician if you feel unwell.
Most important symptoms and effects, both acute and delayed(Symptoms when inhalation or ingestion)
Sore throat. Burning sensation. Cough. Laboured breathing. Abdominal pain. Diarrhoea. Shock or
collapse. Vomiting.
※Inhalation of the vapor or mist may cause lung edema.
(Symptoms when skin and/or eye contact)
Conjunctival redness of the eyes
Redness of the skin. Pain. Serious burns. Loss of vision.
Indication of any immediate medical attention and special treatment needed
The symptoms of lung oedema often do not become manifest until a few hours have passed andthey are aggravated by physical effort.
Rest and medical observation are therefore essential.

5. Fire-fighting measures
Extinguishing media
Suitable extinguishing media
In case of fire, use water in large amounts to extinguish.
Not combustible but enhances combustion of other substances.
Unsuitable extinguishing media
Dry chemicals. Foams.
Specific hazards arising from the substance or mixture
Containers may explode when heated.
Fire may produce irritating, corrosive and/or toxic gases.
Runoff from fire control or dilution water may cause pollution.

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Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021
Advice for firefighters
Specific fire-fighting measures
Evacuate non-essential personnel to safe area.
In case of major fire and large quantities: Evacuate area. Fight fire remotely due to therisk of explosion.
Keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.
Special protective equipment and precautions for fire-fighters
Wear fire/flame resistant/retardant clothing.
Wear protective gloves/protective clothing/eye protection/face protection.
Firefighters should wear self-contained breathing apparatus with full face peace operated
positive pressure mode.

6. Accidental release measures
Personnel precautions, protective equipment and emergency procedures
Keep unauthorized personnel away.
In case of contact with substance, immediately flush skin or eyes with running water for atleast 20 minutes.
Ventilate area until material pick up is complete.
Wear proper protective equipment.
PUBLIC SAFTY: Ventilate closed spaces before entering.
EVACUATION : Spill: See the Table of Initial Isolation and Protective Action Distances forhighlighted substances. For non-highlighted substances, increase, in the downwind
direction, as necessary, the isolation distance shown under “PUBLIC SAFETY”.
Environmental precautions
Avoid release to headsprings, rivers, lakes, ocean and groundwater.
Runoff may create fire or explosion hazard.
Methods and materials for containment and cleaning up
Absorb spill with inert material (dry sand, earth, et al), then place in a chemical waste container.
Do NOT absorb in saw-dust or other combustible absorbents.
Preventive measures for secondary accident
Absorb spillage to prevent material damage.
Collect spillage.
Prevent entry into waterways, sewers, basements or confined areas.
Keep combustibles (wood, paper, oil, etc.) away from spilled material.
Prevent entry into waterways, sewers, basements or confined areas.
Keep out of low areas.

7. Handling and storage
Precautions for safe handling
Preventive measures(Exposure Control for handling personnel)
Do not breathe dust/fume/gas/mist/vapors/spray.
(Protective measures against fire and explosion)
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Keep/Store away from clothing/combustible materials.
(Exhaust/ventilator)
Exhaust/ventilator should be available.
(Safety treatments)
Avoid contact with skin.
Avoid contact with eyes.
Safety Measures
Obtain special instructions before use.

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Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021
Do not handle until all safety precautions have been read and understood.
Use only outdoors or in a well-ventilated area.
Wear protective gloves/protective clothing/eye protection/face protection.
Wear protective gloves, protective clothing or face protection.
Use personal protective equipment as required.
When using do not eat, drink or smoke.
Any incompatibilities
Strong bases, Reducing agents, Combustible substances, Organic compounds, Metals should not
be mixed with the chemicals.
Advice on general occupational hygiene
Wash contaminated parts thoroughly after handling.
Do not eat, drink or smoke when using this product.
Wash contaminated clothing before reuse.
Storage
Conditions for safe storage
Store in a well-ventilated place. Keep container tightly closed.
Keep cool. Protect from sunlight.
Store locked up.
(Incompatible storage condition)
Store away from other materials.
The product may corrode metal. Do not keep in a metal container.
Container and packaging materials for safe handling
Keep only in original container.
Store in corrosion resistant/specified container with a resistant inner liner.
Specific end use(s)See information in Section 7.1 and 7.2 for handling and storage recommendations. See
Section 8 for exposure controls and personal protection recommendations.

8. Exposure controls/personal protection
Control parameters
Control value in MHLW is not available.
Adopted value
Adopted value in JSOH is not available.
Adopted value in ACGIH is not available.
Exposure controls
Appropriate engineering controls
Do not use in areas without adequate ventilation.
Eye wash station should be available.
Washing facilities should be available.
Individual protection measures
Respiratory protection
Wear respiratory protection.
Wear positive pressure self-contained breathing apparatus (SCBA).
Hand protection
Wear protective gloves. Recommended material(s): neoprene, butyl rubber, viton, PVC
Consult with your glove and/or personnel equipment manufacturer for selection of
appropriate compatible materials.
Eye protection
Wear chemical safety goggle.
Wear eye/face protection.
Skin and body protection
Wear impervious clothing and boots in case of repeated or prolonged treatment.

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Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021
9. Physical and Chemical Properties
Information on basic physical and chemical properties
Physical state: Liquid
Color: Colorless
Odor: Irritant odor
Odor threshold data is not available.
Melting point/Freezing point data is not available.
Boiling point or initial boiling point data is not available.
Boiling range data is not available.
Flammability (gases, liquids and solids) data is not available.
Lower and upper explosion limit/flammability limit data is not available.
Flash point data is not available.
Auto-ignition temperature data is not available.
Decomposition temperature data is not available.
Self-Accelerating Decomposition Temperature/SADT data is not available.
pH: Strong acidic.
Dynamic viscosity data is not available.
Kinematic viscosity data is not available.
Solubility:
Solubility in water: Miscible
Solubility in solvent data is not available.
n-Octanol/water partition coefficient data is not available.
Vapor pressure data is not available.
Vapor density data is not available.
VOC data is not available.
Evaporation rate data is not available.
Density and/or relative density: 1.5389(15℃)
Relative vapor density (Air=1) data is not available.
Relative density of the Vapor/air - mixture at 20℃ (Air = 1) data is not available.
Critical temperature data is not available.
No Particle characteristics data is not available.

10. Stability and Reactivity
Reactivity
Reactivity data is not available.
Chemical stability
Stable under normal storage/handling conditions.
Possibility of hazardous reactions
May explode on heating.
Decomposes on heating. This produces toxic and corrosive fumes.
The solution is a strong oxidant. It reacts violently with combustible and reducing
materials, organic materials and strong bases. This generates fire and explosion hazard.
Attacks many metals. This produces flammable/explosive gas.
May explode by shock or concussion when dry or drying.
Mixtures with combustible material (such as paper) may ignite spontaneously at room temperature.
Conditions to avoid
Contact with incompatible materials.
Heat. Friction. Shock.
Incompatible materials
Strong bases, Reducing agents, Metals, Combustible substances, Organic compounds
Hazardous decomposition products
Hydrogen chloride, Chlorine, Hydrogen gas.

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Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021

11. Toxicological Information
Information on toxicological effects
Acute toxicity
Acute toxicity (Oral)[GHS Cat. Japan, base data](Perchloric acid) rat LD50=1100mg/kg (MOE assessment vol.9, 2011)
Irritant properties
Skin corrosion/irritation[GHS Cat. Japan, base data](Perchloric acid) human : corrosive (MOE risk assessment vol.9, 2011; NICNAS IMAP, Accessed Oct. 2018)
Serious eye damage/irritation[GHS Cat. Japan, base data](Perchloric acid) skin corrosive/irritation class 1
Allergenic and sensitizing effects data is not available.
Mutagenic effects data is not available.
Carcinogenicity[GHS Cat. Japan, base data](Perchloric acid) cat.2; MOE risk assessment vol.9, 2011
Reproductive toxicity[GHS Cat. Japan, base data](Perchloric acid) cat. 2; rat : MOE risk assessment vol.9, 2011
STOT
STOT-single exposure[cat.3 (resp. irrit.)][GHS Cat. Japan, base data](Perchloric acid) respiratory tract irritation (MOE risk assessment vol.9, 2011)
STOT-repeated exposure[cat.1][GHS Cat. Japan, base data](Perchloric acid) thyroid gland (MOE risk assessment vol.9, 2011)
Aspiration hazard data is not available.
Information on other hazards
Data on the preparation itself is not available.

12. Ecological Information
Ecotoxicity
Aquatic toxicity
Hazardous to the aquatic environment (Acute)[GHS Cat. Japan, base data](Perchloric acid)
Crustacea (Daphnia magna) LC50 = 495mg/L/48hr [converted value 490mg ClO4-/L/48hr](MOE risk assessment vol.9, 2011)
Hazardous to the aquatic environment (Long-term)[GHS Cat. Japan, base data](Perchloric acid)
Fish (fat head minnow) NOEC≧495 mg/L/35days [converted value ≧490mg ClO4-/L/35days](MOE risk assessment vol.9, 2011)
Water solubility(Perchloric acid) miscible (ICSC, 2000)
Persistence and degradability
Persistence and degradability data is not available.

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Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021
Bioaccumulative potential
Bioaccumulative potential data is not available.
Mobility in soil
Mobility in soil data is not available.
Other adverse effects
Ozone depleting chemical data is not available.
Additional data
Data on the preparation itself is not available.

13. Disposal considerations
Description of waste residues and information on their safe handling and methods of disposal,
including the disposal of any contaminated packaging
Waste treatment methods
Dispose of contents/container in accordance with local/national regulation.

14. Transport Information
UN No. or ID No.: 1873
UN Proper Shipping Name : PERCHLORIC ACID with more than 50% but not more than 72% acid, by massClass or division (Transport hazard class) : 5.1
Subsidiary hazard(s) : 8
Packing group : I
ERG GUIDE No.: 143
IMDG Code (International Maritime Dangerous Goods Regulations)
UN No.: 1873
Proper Shipping Name : PERCHLORIC ACID with more than 50% but not more than 72% acid, by massClass or division : 5.1
Subsidiary hazard(s) : 8
Packing group : I
IATA Dangerous Goods Regulations
UN No.: 1873
Proper Shipping Name : PERCHLORIC ACID with more than 50% but not more than 72% acid, by massClass or division : 5.1
Subsidiary hazard(s) : 8
Hazard labels : Oxidizer & Corrosive
Packing group : I
Environmental hazards
MARPOL Annex III - Prevention of pollution by harmful substances
Marine pollutants (yes/no) : no
MARPOL Annex V - Prevention of pollution by garbage discharge
Specific target organ toxicity - repeated exposure: cat.1
Perchloric acid
Maritime transport in bulk according to IMO instruments
Non Noxious Liquid ; Cat. OS
Water(OS-018)

15. Regulatory Information
Safety, health and environmental regulations/legislation specific for the substance or mixture
Chemicals listed in TSCA Inventory
Perchloric acid; Water
Other regulatory information
We are not able to check up the regulatory information with regard to the substances in9/10
Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021
your country or region, therefore, we request this matter would be filled by your responsibility.
Regulatory information with regard to this substance in your country or in your region
should be examined by your own responsibility.
Ensure this material in compliance with federal requirements and ensure conformity to local regulations.
Regulatory information in this section are limited to intentional ingredient(s), but does
not contain information on non-intentional ingredients or impurities which are not informed by supplier(s).
Chemical safety assessment
Advice on safe handling for this product can be found in sections 7 and 8 of this SDS.

16. Other information
GHS classification and labellingH271-Ox. Liq. 1: H271 May cause fire or explosion; strong oxidizer
H290-Corr. Met. 1: H290 May be corrosive to metals
H302-Acute Tox. 4: H302 Harmful if swallowed
H314-Skin Corr. 1: H314 Causes severe skin burns and eye damage
H318-Eye Dam. 1: H318 Causes serious eye damage
H351-Carc. 2: H351 Suspected of causing cancer
H361-Repr. 2: H361 Suspected of damaging fertility or the unborn child
H335-STOT SE 3: H335 May cause respiratory irritation
H372-STOT RE 1: H372 Causes damage to organs through prolonged or repeated exposure
Reference Book
Globally Harmonized System of classification and labelling of chemicals, (7th revised edition, 2017), UN
Recommendations on the TRANSPORT OF DANGEROUS GOODS 20th edit., 2017 UN
IMDG Code, 2018 Edition (Incorporating Amendment 39-18)
IATA Dangerous Goods Regulations (61th Edition) 2020
Classification, labelling and packaging of substances and mixtures (Table 3 ECNO6182012)2016 EMERGENCY RESPONSE GUIDEBOOK (US DOT)
2020 TLVs and BEIs. (ACGIH)
http://monographs.iarc.fr/ENG/Classification/index.php
JIS Z 7252 : 2019
JIS Z 7253 : 20192019 Recommendation on TLVs (JSOH)
Supplier's data/information
Chemicals safety data management system "GHS Assistant" Version 4.10 (https://www.asahi-ghs.com/)
NITE Chemical Risk Information Platform "NITE-CHRIP"(https://www.nite.go.jp/en/chem/chrip/chrip_search/systemTop)
GHS Classification Guidance for Enterprises 2019 Revised Edition (Ver. 2.0) （Mar. 2020, METI)
Definitions and Abbreviations
SDS (Safety Data Sheet)
LD50 (Lethal Dose, 50％)
LC50 (Lethal Concentration, 50％)
IARC (International Agency for Research on Cancer)
ACGIH (American Conference of Governmental Industrial Hygienists)
EPA (US Environmental Protection Agency)
NTP (US National Toxicology Program)
JSOH (Japan Society for Occupational Health)EU (European Union)
EC50 (Effective Concentration, 50％)
NOEC (No Observed Effect Concentration)
BOD (Biochemical Oxygen Demand)
COD (Chemical Oxygen Demand)
BCF (Bioconcentration Factor)anh (anhydride)10/10Perchloric acid（60%）,JUNSEI CHEMICAL CO., LTD.,23025jis_E1-4,18/03/2021
General Disclaimer
This data sheet was created based on the information we currently have and may be revised
according to new information. In addition, the precautions apply only to normal handling,
and in the case of special handling, please make adequate countermeasure to maintain yoursafety.
The data given here is based on current knowledge and experience. The purpose of this
Safety Data Sheet is to describe the products in terms of their safety requirements. The
data does not signify any warranty with regard to the products' properties.
The GHS classification data given here is based on current Japan official data (NITE
published in 2019).