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Cyclohexane,JUNSEI CHEMICAL CO., LTD.,33805jis_E1-3,20/02/2019
Date of issue for the 1st edition : 18/12/2013
Date of revision : 20/02/2019

Safety Data Sheet

1. Identification of the substance/mixture and of the company/undertaking
Product identifier:Product name: Cyclohexane
Product code (SDS NO): 33805jis_E1-3
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+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
Flammable liquids: Category 2
HEALTH HAZARDSSkin corrosion/irritation: Category 2
Serious eye damage/eye irritation: Category 2
Specific target organ toxicity - single exposure: Category 2((cardiovascular system))Specific target organ toxicity - single exposure: Category 3 (Respiratory tract irritation)
Specific target organ toxicity - single exposure: Category 3(Narcosis)
ENVIRONMENT HAZARDS
Hazardous to the aquatic environment (Acute): Category 1
Hazardous to the aquatic environment (Long-term): Category 3(Note) GHS classification without description: Not applicable/Out of classification/Not classifiable
Label elements

Signal word: Danger
HAZARD STATEMENT
Highly flammable liquid and vapor
Causes skin irritation
Causes serious eye irritation
May cause damage to organs after single exposure
May cause respiratory irritation
May cause drowsiness or dizziness
Very toxic to aquatic life
Harmful to aquatic life with long lasting effects
PRECAUTIONARY STATEMENT
Prevention
Avoid release to the environment.
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
Keep container tightly closed.

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Cyclohexane,JUNSEI CHEMICAL CO., LTD.,33805jis_E1-3,20/02/2019
Ground/bond container and receiving equipment.
Use explosion-proof electrical/ventilating/lighting equipment.
Use only non-sparking tools.
Take precautionary measures against static discharge.
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/eye protection/face protection.
Wear eye protection/face protection.
Do not eat, drink or smoke when using this product.
Response
In case of fire: Use appropriate media for extinction.
Collect spillage.
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: Wash with plenty of soap and water.
IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
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. Keep cool.
Store locked up.
Disposal
Dispose of contents/container in accordance with local/national regulation.
Specific Physical and Chemical hazards
Highly flammable liquid. Vapor/air mixture may explode.

3. Composition/information on ingredients
Mixture/Substance selection:
Substance
Ingredient name:Cyclohexane
Content (%):99.0 <Chemical formula:C6H12
Chemicals No, Japan:3-2233
CAS No.:110-82-7
MW:84.16
ECNO:203-806-2

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

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Cyclohexane,JUNSEI CHEMICAL CO., LTD.,33805jis_E1-3,20/02/2019
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
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)
Cough. Nausea. Headache. Dizziness. Weakness. Drowsiness. Abdominal pain. Vomiting.
Aspiration hazard!
(Symptoms when skin and/or eye contact)
Redness. Dry skin.

5. Fire-fighting measures
Extinguishing media
Suitable extinguishing media
In case of fire, use water mist, foam, dry powder, CO2 to extinguish.
Unsuitable extinguishing media
Do not use direct water jet.
Water may be effective for cooling, but may not effect extinguishment.
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.
Cool container with water spray.
Water may be ineffective.
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.
Environmental precautions
Runoff to sewer may create fire or explosion hazard.
Vapor explosion hazard indoors, outdoors or in sewers.
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.
Use clean non-sparking tools to collect absorbed material.

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Cyclohexane,JUNSEI CHEMICAL CO., LTD.,33805jis_E1-3,20/02/2019
All equipment used when handling the product must be grounded.
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.

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.
Ground/bond container and receiving equipment.
Use explosion-proof electrical/ventilating/lighting equipment.
Use only non-sparking tools.
Take precautionary measures against static discharge.
Exhaust/ventilator
Exhaust/ventilator should be available.
Safety treatments
Avoid contact with skin.
Avoid contact with eyes.
Avoid breathing dust, fume, gas, mist or vapor.
Safety Measures/Incompatibility
Use only outdoors or in a well-ventilated area.
Wear protective gloves, protective clothing or face protection.
Wear protective gloves and face protection.
Wear eye protection/face protection.
Use personal protective equipment as required.
When using do not eat, drink or smoke.
Conditions for safe storage, including any incompatibilities
Recommendation for storage
Store in a well-ventilated place. Keep container tightly closed.
Keep cool. Protect from sunlight.
Store locked up.

8. Exposure controls/personal protection
Control parameters
No control value data available in MHLW
Adopted value
JSOH(1970) 150ppm; 520mg/m3
ACGIH(1964) TWA: 100ppm (CNS impair)
OSHA-PEL
TWA: 300ppm, 1050mg/m3
Exposure controls
Appropriate engineering controls
Do not use in areas without adequate ventilation.
Eye wash station should be available.
Washing facilities should be available.

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Cyclohexane,JUNSEI CHEMICAL CO., LTD.,33805jis_E1-3,20/02/2019
Individual protection measures
Respiratory protection
Wear respiratory protection.
Wear positive pressure self-contained breathing apparatus (SCBA).
Hand protection
Wear protective gloves. Recommended material(s): nitrile, viton
Consult with your glove and/or personnel equipment manufacturer for selection of
appropriate compatible materials.
Eye protection
Wear safety glasses with side-shields.
Wear eye/face protection.
Safety and Health measures
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.

9. Physical and Chemical Properties
Information on basic physical and chemical properties
Physical properties
Appearance: Liquid
Color: Colorless-Clear
Odor: Characteristic odor
pH data N.A.
Phase change temperature
Initial Boiling Point/Boiling point: 81℃
Melting point/Freezing point: 7℃
Decomposition temperature data N.A.
Flash point: (C.C.) -18℃
Auto-ignition temperature: 260℃
Explosive properties: Flammability or explosive limit
Lower limit: 1.3 vol %Upper limit: 8.4 vol %Vapor pressure: 10.3 kPa (20℃)
Relative Vapor Density (Air=1): 2.9
Relative density of the Vapor/air - mixture at 20℃ (Air = 1): 1.2
Specific gravity/Density: 0.7781 (20/4℃)
Solubility
Solubility in water: 0.0058 g/100 ml (25℃)
Solubility in solvent: Miscible in ethanol or diethyl ether.
n-Octanol /water partition coefficient: log Pow3.4

10. Stability and Reactivity
Reactivity
Runaway polymerization will not occur.
Chemical stability
Stable under normal storage/handling conditions.
Highly flammable.
Possibility of hazardous reactions
The vapour is heavier than air and may travel along the ground; distant ignition possible.
As a result of flow, agitation, etc., electrostatic charges can be generated.
Heating may cause violent combustion or explosion.
Reacts with strong oxidants.

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Cyclohexane,JUNSEI CHEMICAL CO., LTD.,33805jis_E1-3,20/02/2019
Conditions to avoid
Contact with incompatible materials.
Open flames. Heat. Sparks.
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Carbon oxides

11. Toxicological Information
Information on toxicological effects
Acute toxicity
Acute toxicity (Oral)[GHS Cat. Japan, base data]
rat LD50 >5000 mg/kg（EU-RAR, 2004）
Irritant properties
Skin corrosion/irritation[GHS Cat. Japan, base data]
rabbit/human : reversible disability (EU-RAR, 2004 et al.)Serious eye damage /irritation[GHS Cat. Japan, base data]animal/human : irritation (PATTY 6th, 2012 et al.)
No Allergenic and sensitizing effects data available
No Mutagenic effects data available
Carcinogenicity
EPA-I; "Inadequate Information to Assess Carcinogenic Potencial"(2005)
No reproductive toxicity data available
Delayed and immediate effects and also chronic effects from short- and long-term exposure
STOT
STOT-single exposure[cat.2][GHS Cat. Japan, base data]vascular system (ACGIH 7th, 2002)[cat.3 (resp. irrit.)][GHS Cat. Japan, base data]
respiratory tract irritation (ACGIH 7th, 2002)[cat.3 (drow./dizz.)][GHS Cat. Japan, base data]narcosis (ACGIH 7th, 2002)
No Aspiration hazard data available

12. Ecological Information
Ecotoxicity
Aquatic toxicity
Very toxic to aquatic life
Harmful to aquatic life with long lasting effects
Aquatic acute toxicity component(s) data
[GHS Cat. Japan, base data]
Crustacea (Daphnia magna) EC50=0.9mg/L/48hr (EU-RAR, 2004)
Aquatic chronic toxicity component(s) data
[GHS Cat. Japan, base data]
Algae (Pseudokircheneriella subcapitata) NOEC＝0.94mg/L/72hr (EU-RAR, 2004)

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Cyclohexane,JUNSEI CHEMICAL CO., LTD.,33805jis_E1-3,20/02/2019
Water solubility
0.0058 g/100 ml (25℃) (ICSC, 2011)
Persistence and degradability
OECD TG 301F_Degradation/28days : 77% (EU-RAR, 2004)
Bioaccumulative potential
log Pow=3.4 (ICSC, 2011)13. Disposal considerations
Waste treatment methods
Avoid release to the environment (- if this is not the intended use).
Dispose of contents/container in accordance with local/national regulation.

14. Transport Information
UN No, UN CLASSUN No.: 1145
Proper Shipping Name : CYCLOHEXANEClass or division : 3
Packing group : II
ERG GUIDE No.: 128
IMDG Code (International Maritime Dangerous Goods Regulations)
UN No.: 1145
Proper Shipping Name :CYCLOHEXANEClass or division : 3
Packing group : II
IATA Dangerous Goods Regulations
UN No.: 1145
Proper Shipping Name :CYCLOHEXANEClass or division : 3
Hazard labels : Flamm.liquid
Packing group : II
Environmental hazards
MARPOL Annex III - Prevention of pollution by harmful substances
Marine pollutants (yes/no) : yes

15. Regulatory Information
Safety, health and environmental regulations/legislation specific for the substance or mixture
Environmental hazards
Transport in bulk according to Annex II of MARPOL73/78 and IBC Code
Noxious Liquid ; Cat. Y
Cyclohexane
Flammable Liquid
Cyclohexane
US major regulations
TSCA
Cyclohexane
Other regulatory information
We are not able to check up the regulatory information in regard to the substances in yourcountry 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

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Cyclohexane,JUNSEI CHEMICAL CO., LTD.,33805jis_E1-3,20/02/2019
regulations.

16. Other information
GHS classification and labelling
Flam. Liq. 2: H225 Highly flammable liquid and vapor
Skin Irrit. 2: H315 Causes skin irritation
Eye Irrit. 2: H319 Causes serious eye irritation
STOT SE 2: H371 May cause damage to organs after single exposure
STOT SE 3: H335 May cause respiratory irritation
STOT SE 3: H336 May cause drowsiness or dizziness
Aquatic Acute 1: H400 Very toxic to aquatic life
Aquatic Chronic 3: H412 Harmful to aquatic life with long lasting effects
Reference Book
Globally Harmonized System of classification and labelling of chemicals, (5th ed., 2013), UN
Recommendations on the TRANSPORT OF DANGEROUS GOODS 20th edit., 2017 UN
IMDG Code, 2018 Edition (Incorporating Amendment 39-18)
IATA Dangerous Goods Regulations (60th Edition) 2019
Classification, labelling and packaging of substances and mixtures (table3-1 ECNO6182012)2016 EMERGENCY RESPONSE GUIDEBOOK (US DOT)
2018 TLVs and BEIs. (ACGIH)
http://monographs.iarc.fr/ENG/Classification/index.php
Supplier's data/information
NITE Chemical Risk Information Platform（NITE-CHRIP）
https://www.nite.go.jp/en/chem/chrip/chrip_search/systemTop
GHS Classification Guidance for Enterprises 2013 Revised Edition （Aug. 2013, METI)
General Disclaimer
This information contained in this data sheet represents the best information currently
available to us. However, no warranty is made with respect to its completeness and weassume no liability resulting from its use. It is advised to make their own tests todeterminate the safety and suitability of each such product or combination for their own
purposes.
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 in2017).