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Sodium tetraborate decahydrate,
JUNSEI CHEMICAL CO., LTD.,35360jis_J_E1-3,22/Mar/2022
Date of issue for the 1st edition : 22/Dec/2017
Date of revision : 22/Mar/2022

Safety Data Sheet

1. Identification of the substance/mixture and of the company/undertaking
Product identifier:Product name: Sodium tetraborate decahydrate
Reference number(SDS):35360jis_J_E1-3
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
HEALTH HAZARDSSkin corrosion/irritation: Category 2
Serious eye damage/eye irritation: Category 2
Reproductive toxicity: Category 1BSpecific target organ toxicity - single exposure: Category 1(central nervous system, gastrointestinal tract)
Specific target organ toxicity - single exposure: Category 3 (Respiratory tract irritation)
Specific target organ toxicity - repeated exposure: Category 1(respiratory organs, nervous system)
ENVIRONMENT HAZARDS
Hazardous to the aquatic environment (Long-term): Category 4(Note) GHS classification without description: Not classified/Classification not possible
Label elements

Signal word: Danger
HAZARD STATEMENT
H315-Causes skin irritation
H319-Causes serious eye irritation
H360-May damage fertility or the unborn child
H370-Causes damage to organs
H335-May cause respiratory irritation
H372-Causes damage to organs through prolonged or repeated exposure
H413-May cause long lasting harmful effects to aquatic life
PRECAUTIONARY STATEMENT
Prevention
Obtain special instructions before use.
Do not handle until all safety precautions have been read and understood.
Avoid release to the environment.
Do not breathe dust/fume/gas/mist/vapors/spray.
Use only outdoors or in a well-ventilated area.

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Sodium tetraborate decahydrate,
JUNSEI CHEMICAL CO., LTD.,35360jis_J_E1-3,22/Mar/2022
Wash contaminated parts thoroughly after handling.
Wear protective gloves.
Wear eye protection/face protection.
Use personal protective equipment as required.
Do not eat, drink or smoke when using this product.
Response
Get medical advice/attention if you feel unwell.
IF exposed or concerned: Get medical advice/attention.
Call a POISON CENTER/doctor/physician if you feel unwell.
IF exposed or concerned: Call a POISON CENTER/doctor/physician.
IF INHALED: Remove person to fresh air and keep comfortable for breathing.
IF ON SKIN: Wash with plenty of soap and water.
If skin irritation occurs: Get medical advice/attention.
Take off contaminated clothing and wash it before reuse.
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.
Storage
Store in a well-ventilated place. Keep container tightly closed.
Store locked up.
Disposal
Dispose of contents/container in accordance with local/national regulation.

3. Composition/information on ingredients
Mixture/Substance selection:
Substance
Common name, synonyms: Borax, Sodium borate
Ingredient name:Sodium tetraborate decahydrate
Content (%):99.0 <Chemical formula:B4Na2O7・10H2O
Chemicals No, Japan:1-69
CAS No.:1303-96-4[1330-43-4(anh)]
MW:381.37
ECNO:215-540-4(anh)Note : The figures shown above are not the specifications of the product.

4. First-aid measures
Descriptions of first-aid measures
General measures
Get medical advice/attention if you feel unwell.
IF INHALED
Remove person to fresh air and keep comfortable for breathing.
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.
Wash with plenty of soap and water.
If skin irritation or rash occurs: Get medical advice/attention.
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.

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Sodium tetraborate decahydrate,
JUNSEI CHEMICAL CO., LTD.,35360jis_J_E1-3,22/Mar/2022
IF SWALLOWED
Rinse mouth. Do NOT induce vomiting.
Call a POISON CENTER/doctor/physician if you feel unwell.
Most important symptoms and effects, both acute and delayed(Symptoms when inhalation or ingestion)
Cough. Sore throat. Nausea. Vomiting. Diarrhoea. Headache. Weakness. Drowsiness. Convulsions.
(Symptoms when skin and/or eye contact)
Conjunctival redness of the eyes. Pain of the eyes. Redness of the skin.

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.

6. Accidental release measures
Personnel precautions, protective equipment and emergency procedures
Ventilate area until material pick up is complete.
Wear proper protective equipment.
Environmental precautions
Avoid release to headsprings, rivers, lakes, ocean and groundwater.
Methods and materials for containment and cleaning up
Sweep up, place in a bag and hold for waste disposal.
If appropriate, moisten first to prevent dusting.
Preventive measures for secondary accident
Collect spillage.

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.

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Sodium tetraborate decahydrate,
JUNSEI CHEMICAL CO., LTD.,35360jis_J_E1-3,22/Mar/2022(Safety treatments)
Avoid contact with skin.
Avoid contact with eyes.
Safety Measures
Obtain special instructions before use.
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.
Wear eye protection/face protection.
Use personal protective equipment as required.
When using do not eat, drink or smoke.
Any incompatibilities
Acids, Strong oxidizing agents 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.
Take off contaminated clothing and wash it 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.

8. Exposure controls/personal protection
Control parameters
Control value in MHLW is not available.
Adopted value
Adopted value in JSOH is not available.
ACGIH(2005) TWA: 2mg/m3(I);
STEL: 6mg/m3(I) (URT 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.
Hand protection
Wear protective gloves.
Consult with your glove and/or personnel equipment manufacturer for selection ofappropriate compatible materials.
Eye protection
Wear safety glasses with side-shields.
Wear eye/face protection.
Skin and body protection
Wear impervious clothing and boots in case of repeated or prolonged treatment.

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Sodium tetraborate decahydrate,JUNSEI CHEMICAL CO., LTD.,35360jis_J_E1-3,22/Mar/2022
9. Physical and Chemical Properties
Information on basic physical and chemical properties
Physical state: Crystals or crystalline powder
Color: White
Odor: None
Odor threshold data is not available.
Melting point/Freezing point: 75℃(loss of crystal water); 742℃(anhydrous form)
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: 1575℃
Self-Accelerating Decomposition Temperature/SADT data is not available.
pH: 9.2 (47g/L, 20℃)
Dynamic viscosity data is not available.
Kinematic viscosity data is not available.
Solubility:
Solubility in water: 5.1 g/100 ml (20℃)
Solubility in solvent: Practically insoluble in ethanol.
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: 1.72 g/cm3 (20℃)
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.
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
The solution in water is a weak base.
Conditions to avoid
Contact with incompatible materials.
Heat. Moisture.
Incompatible materials
Acids, Strong oxidizing agents
Hazardous decomposition products
Boron oxides, Sodium oxides.

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Sodium tetraborate decahydrate,
JUNSEI CHEMICAL CO., LTD.,35360jis_J_E1-3,22/Mar/2022
11. Toxicological Information
Information on toxicological effects
Acute toxicity
Acute toxicity (Oral)[GHS Cat. Japan, base data]
rat LD50=3493～4980mg/kg (EHC 204, 1998)
Acute toxicity (Dermal)[GHS Cat. Japan, base data]
rabbit LD50>10000mg/kg (HSDB, Access on Aug. 2017)
Acute toxicity (Inhalation)[GHS Cat. Japan, base data]
dust: rat LC50=>2mg/L/4hr (PATTY 6th, 2012)
Irritant properties
Skin corrosion/irritation[GHS Cat. Japan, base data]
human : dermatitis (ACGIH, 7th, 2001);
rabbit/guinea pig : irritation (ECETOC TR63, 1995; NITE Initial Risk Assessment Report, 2008)
Serious eye damage/irritation[GHS Cat. Japan, base data]
human : eyes irritating (ATSDR, 2010; EHC 204, 1998);
rabbit : irritation (PATTY 6th, 2012);
rabbit : conjunctival discoloration, blister formation, thickening, corneal irritation recovered on 8～21 days(ECETOC TR63, 1995)
Allergenic and sensitizing effects data is not available.
Mutagenic effects data is not available.
Carcinogenicity[ACGIH]
A4(2005) : Not Classifiable as a Human Carcinogen
Reproductive toxicity[GHS Cat. Japan, base data]
cat. 1B; NITE Initial Risk Assessment Report, 2008; ATSDR, 2010;
STOT
STOT-single exposure[cat.1][GHS Cat. Japan, base data]
gastrointestinal tract; central nervous system (Boric acid; ATSDR, 2010; NITE primary assessment, 2008;
ACGIH 7th, 2005; ECETOC TR63, 1995)[cat.3 (resp. irrit.)][GHS Cat. Japan, base data]
respiratory tract irritation (Boric acid or Tetraboron disodium heptaoxide pentahydrate; ACGIH 7th, 2005;
ATSDR, 2010; DFGOT, 2013; Access on May 2017)
STOT-repeated exposure[cat.1][GHS Cat. Japan, base data]
nervous system; respiratory system (MOE risk assessment, 2016; EHC 204, 1998; NITE primary risk
assessment, 2008; ATSDR, 2010)
Aspiration hazard data is not available.

12. Ecological Information
Ecotoxicity
Aquatic toxicity
H413-May cause long lasting harmful effects to aquatic life

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Hazardous to the aquatic environment (Acute)[GHS Cat. Japan, base data]
Fish (Danio rerio) LC50=125 mg/L/96hr [converted value 14.2 mg-B/L/96hr] (EHC204, 1998);
Crustacea (Daphnia magna) LC50 =644 mg/L/96hr [converted value 73 mg-B/L/96hr] (EHC204, 1998)
Water solubility
5.1 g/100 ml (20℃) (ICSC, 2014)
Persistence and degradability[GHS Cat. Japan, base data]
Not degrade rapidly (metal element)
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.

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
Avoid release to the environment.
Dispose of contents/container in accordance with local/national regulation.

14. Transport Information
UN No., UN CLASSUN No. or ID No.: Not applicable
UN Proper Shipping Name : Not applicable
Class or division (Transport hazard class) : Not applicablePacking group : Not applicableNot applicable to IMDG CodeNot applicable to IATA Dangerous Goods Regulations
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
Reproductive toxicity: cat.1, 1A, 1B
Sodium tetraborate decahydrate
Specific target organ toxicity - repeated exposure: cat.1
Sodium tetraborate decahydrate
Maritime transport in bulk according to IMO instruments
Not applicable to Maritime transport in bulk according to IMO instruments15. Regulatory Information
Safety, health and environmental regulations/legislation specific for the substance or mixture
Chemicals listed in TSCA Inventory
Sodium tetraborate decahydrate
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 your responsibility.
Regulatory information with regard to this substance in your country or in your region
should be examined by your own responsibility.

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Sodium tetraborate decahydrate,
JUNSEI CHEMICAL CO., LTD.,35360jis_J_E1-3,22/Mar/2022
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 labelling
H315-Skin Irrit. 2: H315 Causes skin irritation
H319-Eye Irrit. 2: H319 Causes serious eye irritation
H360-Repr. 1B: H360 May damage fertility or the unborn child
H370-STOT SE 1: H370 Causes damage to organs
H335-STOT SE 3: H335 May cause respiratory irritation
H372-STOT RE 1: H372 Causes damage to organs through prolonged or repeated exposure
H413-Aquatic Chronic 4: H413 May cause long lasting harmful effects to aquatic life
Reference Book
Globally Harmonized System of classification and labelling of chemicals, UN
Recommendations on the TRANSPORT OF DANGEROUS GOODS 21th edit., 2019 UN
IMDG Code, 2018 Edition (Incorporating Amendment 39-18)
IATA Dangerous Goods Regulations (62nd Edition) 2021
2020 EMERGENCY RESPONSE GUIDEBOOK (US DOT)
2021 TLVs and BEIs. (ACGIH)
JIS Z 7252 : 2019
JIS Z 7253 : 20192021 Recommendation on TLVs (JSOH)
Supplier's data/information
Chemicals safety data management system "GHS Assistant" Version 4.16 (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)
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

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Sodium tetraborate decahydrate,
JUNSEI CHEMICAL CO., LTD.,35360jis_J_E1-3,22/Mar/2022
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 2020).