<< GE00172 HYDROFLUORIC ACID (50%) >>

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Revision date: 3/7/2024

Safety Data Sheet
1. Chemical product and company identification
Product name

: HYDROFLUORIC ACID (50%)

Company information
Name of manufacturer
Address
Name of section
Telephone number
Facsimile number
Mail address
Reference No： KANTO CHEMICAL CO., INC.
： 2-1, Nihonbashi, Muromachi 2-Chome, Chuo-Ku, Tokyo, 103-0022, Japan： Electronic materials division technical department： +81-3-6214-1080： +81-3-3241-1043： el-info@kanto.co.jp: GE00172 1.2Recommended uses andrestrictions: Electronic chemicals

2. Hazards identification
GHS classification
Physical hazards

Corrosive to metals

Category 1

Health hazards

Acute toxicity (oral)

Category 2

Acute toxicity (dermal)

Category 3

Acute toxicity(inhalation:dust/mist)

Category 1

Environmentalhazards

Skin corrosion/irritation

Category 1B

Serious eye damage/eye
irritation

Category 1

Specific target organ toxicity(single exposure)

Category 1 (respiratory organs, cardiovascular)

Specific target organ toxicity(repeated exposure)

Category 1 (teeth, bone)

Aquatic acuteCategory 3

Hazardpictograms

Signal word:

DangerHazard statements:

May be corrosive to metals
Fatal if swallowed or if inhaled
Toxic in contact with skin
Causes severe skin burns and eye damage
Causes damage to organs (respiratory organs, cardiovascular)
Causes damage to organs (teeth, bone) through prolonged orrepeated exposureHarmful to aquatic life

Precautionary statements

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Prevention:

Keep only in original container.
Do not breathe mist/vapors.
Wash hands, forearms and face thoroughly after handling.
Do not eat, drink or smoke when using this product.
Use only outdoors or in a well-ventilated area.
Avoid release to the environment.
Wear protective gloves/protective clothing/eye protection/faceprotection.
[In case of inadequate ventilation] wear respiratory protection.

Response:IF SWALLOWED: Immediately call a POISON CENTER or doctor.
IF SWALLOWED: Rinse mouth. Do not induce vomiting.
IF ON SKIN: Wash with plenty of water.
IF ON SKIN (or hair): Take off immediately all contaminatedclothing. Rinse skin with water .
IF INHALED: Remove person to fresh air and keep comfortable forbreathing.
IF IN EYES: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do. Continue
rinsing.
IF exposed or concerned: Call a POISON CENTER or doctor.
Immediately call a POISON CENTER or doctor.
Call a POISON CENTER or doctor if you feel unwell.
Get medical advice/attention if you feel unwell.
Take off immediately all contaminated clothing and wash it before
reuse.
Absorb spillage to prevent material-damage.

Storage:

Store in a well-ventilated place. Keep container tightly closed.
Store locked up.

Disposal:

Dispose of contents/container to hazardous or special waste
collection point, in accordance with local, regional, national
and/or international regulation.

3. Composition/information on ingredients
Distinction of substance or
mixtureChemical name
Hydrofluoric acid:

Substance

Concentration (%)

Formula50 (as F 48)

HF

TSCA
ListedEC-No.
231-634-8

CAS RN
7664-39-3

4. First aid measures
First aid measures
First-aid measures afterinhalation:

Remove victim to fresh air and keep at rest in a position
comfortable for breathing. Immediately get medical treatment.

First-aid measures after skincontact:

Remove contaminated clothing and shoes immediately. Flushaffected areas with plenty of water immediately. If possible,apply calcium gluconate jelly on affected areas. Get medicalattention.

First-aid measures after eye
contact:

Wash the affected areas under running water for at least 15
minutes. Get medical treatment.

First-aid measures afteringestion:

Give the victim milk or 5% calcium gluconate water solution. Get
medical attention.

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Personal Protection in FirstAid and Measures:

Rescuers should wear proper protective equipment like rubber
gloves, goggles.

:

The substance is very corrosive to the eyes, skin and respiratory
tract. Inhalation of the vapour may cause lung oedema.

Suitable extinguishing media:

This product is noncombustible.

Unsuitable extinguishing media

:

None

Firefighting instructions:

Move containers from fire area if it can be done without risk, if
not possible, apply water from a safe distance to cool andprotect surrounding area.

Personal protection (Emergencyresponse):

Firefighters should wear protective equipment.

Most Important Symptoms/Effects
Symptoms/effects

5. Fire fighting measures

6. Accidental release measures
Personal Precautions, Protective Equipment and Emergency Procedures
General measures:

Wear proper protective equipment and avoid contact with skin andinhalation of vapor. Conduct operations from upwind and evacuate
people downwind. Keep away personnel except for authorized ones
from spillage area by stretching ropes.

:Attention should be given to avoid discharge of spilled productinto rivers and resulting environmental damage. When diluting
spill with large amounts of water, discharge of untreatedwastewater into the environment must be avoided.

Environmental precautions
Environmental precautions

Methods and Equipment for Containment and Cleaning up:

Collect the spillage as much as possible to switable empty
container. Or else dilute with water gradually and neutralize
with calcium hydroxide solution or sodium carbonate solution thenwash thoroughly with water.

Technical measures:

Wear proper protective equipment to avoid contact with skin or
inhalation of vapor.

Precautions for safe handling:

Use with an enclosed system or a local exhaust ventilation. Use
in well-ventilated areas.

For containment

7. Handling and storage
Handling

Because this chemical corrodes many kinds of metal, glass andconcretes, choose appropriate materials.
The substance is acidic. Avoid contact with alkaline substances.
Storage
Storage conditions:

Store in a dark, cool place and tightly closed.

Material used inpackaging/containers:

Polyethylene, fluorine resin.
Do not use many kinds of metals like carbon steel, low-alloysteel, nickel, glass.

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8. Exposure controls / Personal protection equipment
ACGIH TWA

0.5 ppm (as F)

ACGIH Ceiling2 ppm (as F)

Remark (ACGIH)

Skin

Appropriate engineering
controls
Protective equipment: Use with an enclosed system or a local exhaust ventilation.

Respiratory protection: Chemical cartridge respirator with acids vapor cartage or airline
respirator

Hand protection: Impervious protective gloves

Eye protection: Safety goggles

Skin and body protection: Protective clothing, protective boots

9. Physical and chemical properties
Physical state: Liquid

Color: Colorless.

Odor: Pungent.

pH: Strong acidity

Melting point: -35 °C

Freezing point: No data available

Boiling point: 104 °C

Flash point: Non flammable.

Auto-ignition temperature: Non flammable.

Decomposition temperature: No data available

Flammability: Non flammable.

Vapor pressure: No data available

Relative density: No data available

Density: 1.18 g/cm³ (20℃)

Relative gas density: No data available

Solubility: Water: Miscible.

Partition coefficient noctanol/water (log Pow)

: No data available

Explosive limits (vol %): No data available

Viscosity, kinematic:: No data available

Particle characteristics: No data available

10. Stability and reactivity
Reactivity: This substance is a strong acid and reacts with alkaline substancesand many metals. Glass also corrodes.

Chemical stability: Stable under normal conditions.

Possibility of hazardous
reactions: Corrodes most metals except gold and platinum. At that time,
flammable hydrogen gas may be generated.

Conditions to avoid: Light, heat.

Incompatible materials: Alkaline substances, metals.

Hazardous decomposition: Hydrogen fluoride, fluorine.

Fuming in air.

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products

11. Toxicological information
Acute toxicity (oral)

Acute toxicity (dermal)

Acute toxicity (inhalation)

Acute toxicity (mist) Description

Skin corrosion/irritation

Serious eye damage/irritation

Respiratory sensitization
Skin sensitization
Germ cell mutagenicity

Carcinogenicity
Reproductive toxicity
STOT-single exposure: Fatal if swallowed
It has been reported that when hydrogen fluoride is taken orally,
the lethal dose in humans is 1.5 g or 20 mg / kg. Based on theabove, it was classified into category 2.
: Toxic in contact with skin
Chemical burns with a body surface area of 7% caused by 50-70%
hydrofluoric acid have been reported to be fatal. Based on theabove, it was classified into category 3.
: No classification (gas)Classification not possible (vapor)
Fatal if inhaled: It has been reported that the lethal concentration of hydrogenfluoride fume is 50-250 ppm (mist, 4-hour equivalent: 0.0008-0.004
mg / L) or higher. Based on the above, it was classified into
category 1.
: Causes severe skin burns
When hydrofluoric acid adheres to the skin and mucous membranes, itcauses strong painful corrosion locally, causing systemic effects
and death in some cases. It is said that if hydrofluoric acidadheres to 50-100 cm2 of the skin, it is necessary to behospitalized, and if it is 100 cm2 or more, it should be treatedwith ICU. In addition, in a skin irritation test in rabbits (OECDTG404), significant crusting with destruction of skin tissue
occurred and did not recover within 14 days. Based on the above, it
was classified into category 1B.
: Causes serious eye damage
The skin corrosion / irritatation section of this substance iscategory 1B. Based on the above, it was classified into category 1.
: Classification not possible: Classification not possible: No classification
It could not be concluded from the results of in vivo tests withhydrofluoric acid (a mouse dominant lethal test, a mutualtranslocation tests with mouse testes, a chromosomal aberration
test with rat bone marrow cells). It was described that evaluation
was possible by tests with sodium fluoride, which showed nochromosomal aberration. However, although abnormality was observedin anaphase cells, since fluoride ions do not bind to DNA
covalently, and do not form DNA adducts, it is thought to be asecondary effect. Therefore, it is concluded that inorganic
fluoride does not induce chromosomal damage in vivo. As for invitro, a bacterial reverse mutation test was negative.
: Classification not possible: Classification not possible: Causes damage to organs (respiratory organs, cardiovascular)
As a result of percutaneous exposure to 80% hydrofluoric acid,cases of death due to "dyspnea with chest pain" and "severe
hypocalcemia" have been reported.Thus, it was classified into
category 1 (respiratory organs, cardiovascular).

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STOT-repeated exposure:

Causes damage to organs (teeth, bone) through prolonged or repeatedexposureIn humans, it has been reported that fluoride accumulates in bone
and tooth buds, and chronic exposure to high levels of fluoride andhydrogen fluoride causes skeletal fluorosis. Based on the above, it
was classified into category 1 (teeth, bone).

Aspiration hazard:

Classification not possible

12. Ecological information
Ecotoxicity
Aquatic acute
Aquatic chronic: Harmful to aquatic life
Chaetogammarus marinus EC50=38.28mg F/L/96h (as sodium fluoride): No classification
Oryzias latipes NOEC≥9.9mg F/L/28-day (as sodium fluoride)

Persistence and degradability
No additional information available
Bioaccumulative potential
No additional information available
Mobility in soil
No additional information available
Hazardous to the ozone layerOzone: Classification not possible

13. Disposal considerations
Ecological waste information: Add the chemical in a large amount of calcium hydroxide
solution gradually to precipitate calcium fluoride. Filter theprecipitation and bury in a landfill site approved forhazardous waste disposal. Or entrust approved waste disposal
companies with the disposal.
<Note>＊The pH of the neutralization should be above 8.5. The
precipitation does not form completely below pH 8.5.
＊If added rapidly calcium hydroxide solution in the chemical,
generate heat and the chemical may fly in all directions.
＊As unreacted toxic gas may be emitted at the disposal work,
wear appropriate protective equipment. Even a small amount of
the gas has the toxicity.

Contaminated container andpackaging: In case of disposal of empty bottles, dispose bottles after
removing the content thoroughly.

14. Transport information
International Regulations
Transport by sea(IMDG)
UN-No. (IMDG)
Proper Shipping Name (IMDG)
Packing group (IMDG)

:::

1790
HYDROFLUORIC ACIDII

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Transport hazard class(es)(IMDG)Air transport(IATA)
UN-No. (IATA)
Proper Shipping Name (IATA)
Packing group (IATA)
Transport hazard class(es)(IATA):

8 (6.1)

::
:
:

1790
Hydrofluoric acidII
8 (6.1)Marine pollutant:

Not applicable:157

MFAG-No

15. Regulatory information
Regulatory information with regard to this substance in your country or region should be examined byyour own responsibility.

16. Other information
Data sources: Handbook of dangeroous and hazardous chemicals, Japan
Industrial Safety & Health Association.（2000-2001）.
Dangerous Properties of Industrial Materials,6th ed.
N.I.Sax Van Nostrand Reinhold Company（1984）.
Handbook of Dangerous Substances Springer-Verlag Tokyo（1991）.
Handbook of 17322 Chemical Products, The Chemical Daily Co.
（2022）.
Handbook of Poisonous and Deleterious substances, revised andenlarged edition, Yakumu Kohosa（2000）.
NITE Chemical Risk Information Platform (NITE-CHRIP), National
Institute of Technology and Evaluation.

The information contained herein is based on several references and the present state of ourknowledge. However the SDS does not always cover all information about the product, handle theproduct carefully.The information is intended to ordinary usage, in case of particular handlings,
conduct appropriate safety measurements.The information herein is only provision of information, andit does not represent a guarantee the properties of the product.The Safety Data Sheet(SDS) isprepared based on JIS Z7253.