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Potassium hydrogen phthalate,
JUNSEI CHEMICAL CO., LTD.,63260jis_J_E1-2,23/12/2019
Date of issue for the 1st edition : 22/06/2015
Date of revision : 23/12/2019

Safety Data Sheet

1. Identification of the substance/mixture and of the company/undertaking
Product identifier:Product name: Potassium hydrogen phthalate
Product code (SDS NO): 63260jis_J_E1-2
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(Note) GHS classification without description: Not classified/Classification not possible
Label elements
No GHS label element
No Signal word

3. Composition/information on ingredients
Mixture/Substance selection:
Substance
Ingredient name:Potassium hydrogen phthalate
Content (%):99.0～100.2
Chemical formula:C8H5KO4
Chemicals No, Japan:3-1272;3-1342
CAS No.:877-24-7
MW:204.22
ECNO:212-889-4

4. First-aid measures
Descriptions of first-aid measures
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.
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.

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JUNSEI CHEMICAL CO., LTD.,63260jis_J_E1-2,23/12/2019
Call a POISON CENTER or doctor/physician if you feel unwell.

5. Fire-fighting measures
Extinguishing media
Suitable extinguishing media
Use appropriate extinguishing media suitable for surrounding facilities.
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.
Advice for firefighters
Specific fire-fighting measures
Evacuate non-essential personnel to safe area.
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
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.
Preventive measures for secondary accident
Collect spillage.

7. Handling and storage
Precautions for safe handling
Preventive measures(Exposure Control for handling personnel)
Avoid breathing dust/fume/gas/mist/vapors/spray.
(Protective measures against fire and explosion)
Keep away from heat/sparks/open flames/hot surfaces. - 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 or face protection.
Use personal protective equipment as required.
When using do not eat, drink or smoke.
Any incompatibilities
Strong oxidizing agents should not be mixed with the chemicals.

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Potassium hydrogen phthalate,
JUNSEI CHEMICAL CO., LTD.,63260jis_J_E1-2,23/12/2019
Storage
Conditions for safe storage
Store in a well-ventilated place. Keep container tightly closed.
Keep cool. Protect from sunlight.
Container and packaging materials for safe handling data is not available.

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.
OSHA-PEL value is not available.
NIOSH-REL value 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.
Consult with your glove and/or personnel equipment manufacturer for selection ofappropriate compatible materials.
Eye protection
Wear eye/face protection.
Skin and body protection
Wear impervious clothing and boots in case of repeated or prolonged treatment.

9. Physical and Chemical Properties
Information on basic physical and chemical properties
Physical state: Crystals or crystalline powder
Color: White
Odor: NoneOdor threshold data is not available.
pH: 4.0 (0.05M aq soln., 25℃)
Boiling point or initial boiling point data is not available.
Boiling range data is not available.
Evaporation rate data is not available.
Melting point/Freezing point: 295～300℃
Decomposition temperature: 295～300℃
Self-Accelerating Decomposition Temperature/SADT data is not available.
Flammability (gases, liquids and solids) data is not available.
Flash point data is not available.
Auto-ignition temperature data is not available.
Critical temperature data is not available.
Lower and upper explosion limit/flammability limit data is not available.
Vapor pressure data is not available.
VOC data is not available.

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Potassium hydrogen phthalate,JUNSEI CHEMICAL CO., LTD.,63260jis_J_E1-2,23/12/2019
Relative vapor density (Air=1) data is not available.
Relative density of the Vapor/air - mixture at 20℃ (Air = 1) data is not available.
Density and/or relative density: 1.636(25 / 4℃)
Dynamic viscosity data is not available.
Kinematic viscosity data is not available.
Solubility:
Solubility in water: 83g/liter(20℃)
Solubility in solvent: Slightly soluble in ethanol, diethyl ether.
n-Octanol/water partition coefficient data is not available.
No Particle characteristics data is not available.

10. Stability and Reactivity
Reactivity data is not available.
Chemical stability
Stable under normal storage/handling conditions.
Possibility of hazardous reactions data is not available.
Conditions to avoid
Contact with incompatible materials.
Open flames. Heat.
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Carbon oxides, Potassium oxides

11. Toxicological Information
Information on toxicological effects
Acute toxicity
Acute toxicity (Oral), Productrat LD50 >3200 mg/kg (RTECS)
Acute toxicity (Dermal), Productguinea pig LD50 >1g/kg (RTECS)
Irritant properties
Skin corrosion/irritation data is not available.
Serious eye damage/irritation data is not available.
Allergenic and sensitizing effects data is not available.
Mutagenic effects data is not available.
Carcinogenic effects data is not available.
Reproductive toxicity data is not available.
STOT
STOT-single exposure data is not available.
STOT-repeated exposure data is not available.
Aspiration hazard data is not available.

12. Ecological Information
Ecotoxicity data is not available.
Persistence and degradability data is not available.
Bioaccumulative potential data is not available.
Mobility in soil data is not available.
Ozone depleting chemical data is not available.

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Potassium hydrogen phthalate,
JUNSEI CHEMICAL CO., LTD.,63260jis_J_E1-2,23/12/2019
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
Not applicable to UN No., UN CLASS
Environmental hazards
MARPOL Annex III - Prevention of pollution by harmful substances
Marine pollutants (yes/no) : no15. Regulatory Information
Safety, health and environmental regulations/legislation specific for the substance or mixture
Environmental hazards
US major regulations
TSCAPotassium hydrogen phthalate
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).

16. Other information
Reference Book
Globally Harmonized System of classification and labelling of chemicals, (6th ed., 2015), 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)
2019 TLVs and BEIs. (ACGIH)
http://monographs.iarc.fr/ENG/Classification/index.php
JIS Z 7253 : 2019
JIS Z 7252 : 20192019 Recommendation on TLVs (JSOH)
Supplier's data/information
Chemicals safety data management system "GHS Assistant" (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 2013 Revised Edition （Aug. 2013, METI)
General Disclaimer
This data sheet was created based on the information we currently have and may be revised

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Potassium hydrogen phthalate,
JUNSEI CHEMICAL CO., LTD.,63260jis_J_E1-2,23/12/2019
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 in2018).