1/10
0.1mol/L Sodium hydroxide solution,
JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023
Date of issue for the 1st edition : 20/Sep/2017
Date of revision : 20/Mar/2023

Safety Data Sheet

Section 1. Identification of the substance/mixture and of the company/undertaking
Product identifier:Product name: 0.1mol/L Sodium hydroxide solution
Reference number(SDS):95562jis_E2-3
Product type：
Reagent
Relevant identified uses of the substance or mixture and uses advised against
Relevant identified uses of the product: Volumetric analysis
Uses advised against: Do not use for other purposes.
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

Section 2. Hazards identification
GHS classification and label elements of the product
Classification of the substance or mixture
HEALTH HAZARDSSkin corrosion/irritation: Category 1
Serious eye damage/eye irritation: Category 1(Note) GHS classification without description: Not classified/Classification not possible
Label elements

Signal word: Danger
HAZARD STATEMENT
H314-Causes severe skin burns and eye damage
H318-Causes serious eye damage
PRECAUTIONARY STATEMENT
Prevention
Do not breathe dust/fume/gas/mist/vapors/spray.
Wash contaminated parts thoroughly after handling.
Wear protective gloves, protective clothing or face protection.
Wear eye protection/face protection.
Response
Immediately call a POISON CENTER/doctor/physician.
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 or shower.
Wash contaminated clothing before reuse.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if
present and easy to do. Continue rinsing.
IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

2/10
0.1mol/L Sodium hydroxide solution,
JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023
Storage
Store locked up.
Disposal
Dispose of contents/container in accordance with local/national regulation.

Section 3. Composition/information on ingredients
Mixture/Substance selection:MixtureIngredient name:Sodium hydroxide
Content (%):0.4
Chemical formula:HNaO
Chemicals No, Japan:1-410
CAS No.:1310-73-2
MW:40.00
ECNO:215-185-5
Ingredient name:Water
Content (%):Residual quantity of the ingredient mentioned above.
Chemical formula:H2O
CAS No.:7732-18-5
MW:18.02
ECNO:231-791-2
Note : The figures shown above are not the specifications of the product.

Section 4. First-aid measures
Descriptions of first-aid measures
General measures
Immediately call a POISON CENTER/doctor/physician.
Keep victim warm and quiet.
Call emergency medical service.
Do not use mouth-to-mouth method if victim ingested or inhaled the substance; giveartificial respiration with the aid of a pocket mask equipped with a one-way valve or otherproper respiratory medical device.
Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed.
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/doctor/physician if you feel unwell.
IF ON SKIN (or hair）
Take off immediately all contaminated clothing. Rinse skin with water or shower.
If skin irritation or rash occurs: Get medical advice/attention.
Remove and isolate contaminated clothing and shoes.
For minor skin contact, avoid spreading material on unaffected skin.
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/doctor/physician if you feel unwell.

3/100.1mol/L Sodium hydroxide solution,
JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023
Indication of any immediate medical attention and special treatment needed
Ensure that medical personnel are aware of the material(s) involved, and take precautions
to protect themselves.

Section 5. Fire-fighting measures
Extinguishing media
Suitable extinguishing media
Use appropriate extinguishing media suitable for surrounding facilities.
The product is non-flammable.
Unsuitable extinguishing media
Unsuitable extinguishing media data is not available.
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.
Advice for firefighters
Specific fire-fighting measures
Evacuate non-essential personnel to safe area.
Special protective equipment and precautions for fire-fighters
Wear fire resistant or flame 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.

Section 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.
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.
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.
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.
Preventive measures for secondary accident
Collect spillage.
Stop leak if you can do it without risk.
ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area).
Prevent entry into waterways, sewers, basements or confined areas.
Do not get water inside containers.
Keep out of low areas.

4/10
0.1mol/L Sodium hydroxide solution,
JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023
Section 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, hot surfaces, sparks, open flames and other ignition sources. No smoking.
(Exhaust/ventilator)
Exhaust/ventilator should be available.
(Safety treatments)
Avoid contact with skin.
Avoid contact with eyes.
Safety Measures
Wear protective gloves/protective clothing/eye protection/face protection.
Use personal protective equipment as required.
When using do not eat, drink or smoke.
Any incompatibilities
Acids should not be mixed with the chemicals.
Advice on general occupational hygiene
Wash contaminated parts thoroughly after handling.
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 in accordance with local/national regulation.
Store locked up.
Container and packaging materials for safe handling data is not available.
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.

Section 8. Exposure controls/personal protection
Control parameters
Control value in MHLW is not available.
Adopted value(Sodium hydroxide)
JSOH(1978) (ceiling) 2mg/m3
ACGIH(1992) STEL: C 2mg/m3 (URT, eye & skin irr)
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, nitrile, butyl rubber, viton, PVC,
impermeable or chemical resistant rubber
Inspect before use and replace worn or damaged gloves.

5/10
0.1mol/L Sodium hydroxide solution,
JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023
Contact the glove manufacturer for specific advice on glove selection and breakthroughtimes for your use conditions.
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.

Section 9. Physical and Chemical Properties
Information on basic physical and chemical properties
Physical state: Liquid
Color: Colorless
Odor data is not available.
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): Non-flammable
Lower and upper explosion limit/flammability limit data is not available.
Flash point: Non-flammableAuto-ignition temperature data is not available.
Decomposition temperature data is not available.
Self-Accelerating Decomposition Temperature/SADT data is not available.
pH: Strong basic
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.
Density and/or relative density data is not available.
Relative vapor density (Air=1) data is not available.
Relative density of the Vapor/air - mixture at 20℃ (Air = 1) data is not available.
Particle characteristics data is not available.
Other information
Critical temperature data is not available.
Evaporation rate data is not available.
VOC data is not available.
Other information is not available.

Section 10. Stability and Reactivity
Reactivity
Runaway polymerization will not occur.
Chemical stability
Stable under normal storage/handling conditions.
Possibility of hazardous reactions
Reacts with acids.
Conditions to avoid
Contact with incompatible materials.
Heating.

6/10
0.1mol/L Sodium hydroxide solution,
JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023
Incompatible materials
Acids
Hazardous decomposition products
Sodium oxides.

Section 11. Toxicological Information
The product has not been subjected to toxicological testing. Refer to the available data on
the constituents.
Information on toxicological effects
Acute toxicity
Acute toxicity (Oral)[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.
Acute toxicity (Dermal)[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.
Acute toxicity (Inhalation)[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.
Labor standard law, Japan; Toxic
Sodium hydroxide
Irritant properties
Skin corrosion/irritation[Product]Category 1, Causes severe skin burns and eye damage[Product data][GHS Cat. based on pH]
11.5 <= pH, accordingly Skin corrosion/irritation: Category 1[Data for components of the product][GHS Cat. Japan, base data](Sodium hydroxide)
pig/rabbit : severe necrosis (ACGIH 7th, 2001 et al)
Serious eye damage/irritation[Product]Category 1, Causes serious eye damage[Product data][GHS Cat. based on pH]
11.5 <= pH, accordingly Serious eye damage/eye irritation: Category 1[Data for components of the product][GHS Cat. Japan, base data](Sodium hydroxide)
rabbit : corrosive (SIDS, 2009)
SensitizationRespiratory sensitization[Product]Classification not possible (Insufficient data available or no data available).

7/10
0.1mol/L Sodium hydroxide solution,
JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023[Data for components of the product]
No data available.
Skin sensitization[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.
Germ cell mutagenicity[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.
Carcinogenicity[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.
Reproductive toxicity[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.
Specific target organ toxicity (STOT)
STOT-single exposure[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.
STOT-repeated exposure[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.
Aspiration hazard[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
No data available.

Section 12. Ecological Information
The product has not been subjected to ecotoxicological testing. Refer to the available dataon the constituents.
Toxicity
Aquatic toxicity[Product]Classification not possible (Insufficient data available or no data available).
[Data for components of the product]
Hazardous to the aquatic environment, short-term (acute)[GHS Cat. Japan, base data](Sodium hydroxide)
Crustacea (Ceriodaphnia reticulata) LC50=40.4mg/L/48hr (SIDS, 2004)

8/10
0.1mol/L Sodium hydroxide solution,JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023
Water solubility[Data for components of the product](Sodium hydroxide)
109 g/100 ml (20℃) (ICSC, 2010)
Persistence and degradability
Persistence and degradability data is not available.
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.

Section 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.

Section 14. Transport Information
UN No., UN CLASS
UN Number or ID Number : 1824
UN Proper Shipping Name : SODIUM HYDROXIDE SOLUTIONClass or division (Transport hazard class) : 8Packing group : III
ERG GUIDE No.: 154
IMDG Code (International Maritime Dangerous Goods Regulations)
UN Number or ID Number : 1824
UN Proper Shipping Name : SODIUM HYDROXIDE SOLUTIONClass or division (Transport hazard class) : 8Packing group : III
IATA (Dangerous Goods Regulations)
UN Number or ID Number : 1824
UN Proper Shipping Name : SODIUM HYDROXIDE SOLUTIONClass or division (Transport hazard class) : 8Hazard labels : CorrosivePacking group : III
Environmental hazards
Marine pollutants (yes/no) : noTransport in bulk according to Annex II of MARPOL 73/78 and the IBC Code
Noxious Liquid Substances ; Cat. Y
Sodium hydroxide
Non Noxious Liquid Substances ; Cat. OS
WaterSection 15. Regulatory Information
Safety, health and environmental regulations/legislation specific for the substance or mixture
U.S. Toxic Substances Control Act (TSCA) Inventory
Chemicals listed in TSCA Inventory1310-73-2; 7732-18-5
All components are listed or exempted.

9/10
0.1mol/L Sodium hydroxide solution,JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023
Other regulatory information
We are not able to check up the regulatory information with regard to the substances inyour country or region, therefore, we request this matter would be filled by yourresponsibility.
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 informedby supplier(s).
Chemical safety assessment
Advice on safe handling for this product can be found in sections 7 and 8 of this SDS.

Section 16. Other information
GHS classification and labellingH314-Skin corrosion/irritation, Category 1: H314 Causes severe skin burns and eye damage
H318-Serious eye damage/eye irritation, Category 1: H318 Causes serious eye damage
References and sources for data
Globally Harmonized System of classification and labelling of chemicals, UN
Recommendations on the TRANSPORT OF DANGEROUS GOODS 22nd edit., 2021 UN
IMDG Code, 2020 Edition (Incorporating Amendment 40-20)
IATA Dangerous Goods Regulations (64th Edition) 2023
2020 EMERGENCY RESPONSE GUIDEBOOK (US DOT)
2022 TLVs and BEIs. (ACGIH)
JIS Z 7252 : 2019
JIS Z 7253 : 20192022 Recommendation on TLVs (JSOH)
Notification No. 0111-1 (January 11, 2022), Chemical Hazards Control Division, Industrial
Safety and Health Department, Labour Standards Bureau, MHLW in Japan
Supplier's data/information
Chemicals safety data management system "GHS Assistant" Version 4.21(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)
Abbreviations and acronyms
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)10/100.1mol/L Sodium hydroxide solution,
JUNSEI CHEMICAL CO., LTD.,95562jis_E2-3,20/Mar/2023
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 thisSafety 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 2021).