ＳＤＳＮｏ．

BeCu-160003

Safety Data Sheet
Company:Address:Department:
Contact:
Phone #:
Fax #:
Emergency Contact
Facility:
Address:

Yamato Gokin Co., Ltd.
〒354-0045
474 Kamitome, Miyoshi-machi, Iruma-gun, Saitama-ken, Japan
Sales
Head of Sales
049-273-6006
049-273-6016

Department:
Contact:
Phone #:
Fax #:

Miyoshi Gokin Kogyo Co., Ltd.
〒354-0045
508 Kamitome, Miyoshi-machi, Iruma-gun, Saitama-ken, Japan
Quality Assurance
Head of Quality Assurance
049-258-3381
049-258-5279

Document Creation: 2016.11.21
English Translation: 2017.09.08

1. Product Name
BeCu25 ， BeCu165 ，BeCu20C

2. GHS Classification
These alloys are unclassified; GHS classification information for constituent elements is listed below.

2.1 Copper (Cu)Physical Hazards

Not ClassifiedHealth Hazards

Skin Sensitization
STOT - Single Exposure

Environmental Hazards

Not Classified

Category 1ACategory 1 (digestive organs)Category 3 (respiratory irritation)

GHS Label Elements
Pictogram

Signal Word

Danger / Warning

Hazard Statements

H317: May cause an allergic skin reaction
H335: May cause respiratory irritation
H370: Causes damage to organs (digestive organs)

Precautionary Statements
Safety Measures

Minimize generation and build-up of dust particles.
Do not inhale dust / fumes.
Wash thoroughly after handling.
Do not eat, drink or smoke when using this product.
Contaminated work clothing must not be allowed out of the workplace.
Wear protective gloves/protective clothing/eye protection/face protection.
In case of inadequate ventilation wear respiratory protection.

Emergency
Measures

IF ON SKIN: Wash with plenty of water.
IF INHALED: Remove victim to fresh air and keep at rest in a position
comfortable for breathing.
IF exposed or concerned: Call a doctor.
If skin irritation or rash occurs: Get medical advice/attention.
If experiencing respiratory symptoms: Call a doctor.
Wash contaminated clothes before reusing.

Storage

Store locked up.

Risks not covered by GHS classification

None known

2.2 Beryllium (Be)Physical Hazards

Not ClassifiedHealth Hazards

Respiratory sensitization
Skin sensitization
Carcinogenicity
STOT - single exposure
STOT - repeat exposure

Category 1
Category 1
Category 1ACategory 1 (respiratory organs)Category 1 (respiratory organs)

Environmental HazardsAquatic environmental chronic
toxicity

Category 4

GHS Label Elements
PictogramSignal Word

Danger / Caution

Hazard Statements

H334: May cause allergy or asthma symptoms or breathing issues if inhaled
H317: May cause an allergic skin reaction
H350: May cause cancer
H370: Causes damage to organs (respiratory organs)H372: Causes damage to organs through prolonged or repeated exposure(respiratory organs)H413: May cause long-lasting harmful effects to aquatic life

Precautionary Statements
Safety Measures

Minimize generation and build-up of dust particles.
Do not inhale dust / fumes.
Wash thoroughly after handling.
Do not eat, drink or smoke when using this product.
Contaminated work clothing must not be allowed out of the workplace.
Wear protective gloves/protective clothing/eye protection/face protection.
In case of inadequate ventilation wear respiratory protection.

Emergency
Measures

IF ON SKIN: Wash with plenty of water.
IF INHALED: Remove victim to fresh air and keep at rest in a position
comfortable for breathing.
IF exposed or concerned: Call a doctor.
If skin irritation or rash occurs: Get medical advice/attention.
If experiencing respiratory symptoms: Call a doctor.
Wash contaminated clothes before reusing.

Storage

Store locked up.

Risks not covered by GHS classification

None known

2.3 Cobalt (Co)
Physical Hazards

Not ClassifiedHealth Hazards

Respiratory sensitization
Skin sensitization
Carcinogenicity
STOT - single exposure
STOT - repeat exposure

Environmental Hazards

Not Classified

Category 1
Category 1
Category 2
Category 3 (respiratory irritation)
Category 1 (respiratory organs)

GHS Label Elements
Pictogram

Signal Word

Danger / WarningHazard Statements

H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled
H317: May cause an allergic skin reaction
H351: Suspected of causing cancer
H335: May causing respiratory irritation
H372: Causes damage to organs through prolonged or repeated exposure(respiratory system, cardiovascular system, thyroid, blood)

Precautionary Statements
Safety Measures

Minimize generation and build-up of dust particles.
Do not inhale dust / fumes.
Wash thoroughly after handling.
Do not eat, drink or smoke when using this product.
Contaminated work clothing must not be allowed out of the workplace.
Wear protective gloves/protective clothing/eye protection/face protection.
In case of inadequate ventilation wear respiratory protection.

Emergency
Measures

IF ON SKIN: Wash with plenty of water.
IF INHALED: Remove victim to fresh air and keep at rest in a position
comfortable for breathing.
IF exposed or concerned: Call a doctor.
If skin irritation or rash occurs: Get medical advice/attention.
If experiencing respiratory symptoms: Call a doctor.
Wash contaminated clothes before reusing.

Storage

Store locked up.

Risks not covered by GHS classificationNone known

2.4 Silicon (Si)
Physical Hazards

Flammable solid

Category 2

Health Hazards

Eye irritantCategory 2B

Environmental Hazards

Not Classified

GHS Label Elements
Pictogram

Signal Word

Warning

Hazard Statement

H228: Flammable Solid
H320: Causes eye irritation

Precautionary Statements
Safety Measures

Wear protective gloves/protective clothing/eye protection/face protection.
Wash thoroughly after handling.

Emergency
Measures

IF ON SKIN: Wash with plenty of water.

Storage

Store locked up.

Risks not covered by GHS classification

None known

3. Composition / Information on IngredientsClassification： Mixture

Chemical Name

： BeCu25 & BeCu165 ： Copper-Beryllium-Cobalt Alloy： BeCu20C ： Copper-Beryllium-Cobalt-Silicon Alloy

Hazardous Ingredients :ItemNames and composition (mass%) of Class 1 Designated Chemical
Substances as per the "Law Concerning Reporting, etc. of Releases
to the Environment of Specific Chemical Substances and Promoting
Improvements in Their Management" (PRTR Law)
ＣｕＢｅ

ＣｏSi

CopperBeryllium

CobaltSilicon

BeCu25 Compositionbal.
1.80～2.0 0.2～0.35
BeCu165 Comp.
bal.
1.6～1.80 0.2～0.35
BeCu20C Comp.
bal.
1.9～2.2 0.35～0.65
Government No.
N/A394（1）132
CAS No.
7440-50-8 7440-41-7 7440-48-4（1） Specific Class 1 Designated Chemical Substance

0.2～0.35
N/A
7440-21-3

4. First-Aid Measures○ Damage from fumes or dust
・ Immediately remove victim to fresh air.
・ If victim has trouble breathing, assist with breathing and seek medical attention.
○ Eye contact
・ If foreign matter enters the eyes, do not rub. Wash out eyes with plenty of water.
・ If irritation persists, seek medical attention.
○ Skin contact
・ Brush off foreign matter with hands and wash the affected area well with water.
・ If irritation persists, seek medical attention.

5. Fire-Fighting Measures
Not applicable (non-combustible)

6. Accidental Release Measures
Product is a solid, so accidental release / spillage is not a concern under normal environmental conditions.

7. Handling and Storage・ No special handling needed, though wearing gloves is recommended when handling products withsharp corners and edges.
・ In high-humidity locations, store product indoors.

8. Exposure Controls / Personal Protection

Melting, casting, cutting, thermal cutting and grinding are classified as "dusty work" according tothe "Ordinance on Prevention of Hazards Due to Dust," and must be managed accordingly.
・ Keep source of dust sealed, or install local exhaust ventillation system
・ Wear respiratory protective equipment
・ Periodically clean up accumulated dust
・ If dust gets on work clothes, clean clothes by washing・ Wash hands and gargle after working
Permissible Exposure Limit
MaterialＣｕＢｅ
ＣｏSi

FormFumes
Dust and mist (as Cu)
Particles
Particles
Particles

Permissable Density （mg/m3）
Japan Society for Occupational
ＡＣＧＩＨ
Health－0.2－
10.0020.002
0.05
0.02－10

9. Physical and Chemical Properties
Appearance
Color
Relative Density
Boiling Point
Melting Point
Solubility
Odor

：：：
：
：
：
：

BeCu25
BeCu165
Metallic
Metallic
Copper-gold
Copper-gold
8.36
8.41
N/A
N/A
870℃
870℃
Not soluble in water Not soluble in water
Odorless
Odorless

BeCu20C
Metallic
Copper-gold
8.09
N/A
980℃
Not soluble in water
Odorless

10. Stability and Reactivity
・ Stable under normal handling conditions.
・ Contact with acid or similar chemical substance may produce hydrogen gas.

11. Toxicological Information○ Acute Toxicity
・ Inhaling dust particles from fumes, etc. may induce the following: cough, chest pain, fever.
○ Chronic Toxicity
・ Inhaling dust particles from fumes, etc. may induce the following: pneumoconiosis.
○ Carcinogenicity
Beryllium and Be compounds
Japan Society for Occupational Health
ＡＣＧＩＨ：：２Ａ
Ａ１

CobaltJapan Society for Occupational Health
ＡＣＧＩＨ：：

２Ｂ
Ａ３

12. Ecogological Information
・ No data on the ecological effects of this product is currently available.

13. Disposal Considerations

・ Dispose of product in an environmentally conscious and appropriate manner. Disposal must
be in accordance with all applicable industrial waste regulations, including prefectural andmunicipal requirements.

14. Transport Information

・ None in particlar. During sea transport, minimizing the product's exposure to sea water isrecommended.

15. Applicable Regulatory Laws
・ Law Concerning Reporting, etc. of Releases to the Environment of Specific Chemical
Substances and Promoting Improvements in Their Management
・ Industrial Safety and Health Law

16. Other Information

The information on this data sheet was compiled based on our current knowledge and available
documentation. It may be replaced in the event that new information becomes available.
Furthermore, the precautions presented herein apply only to normal handling of the product, and do
not constitute a guarantee of safety.
Cited References
Handbook of Industrial Poisoning (Ishiyaku Publishers Inc.)
Hazardous Materials Handbook (Maruzen Publishing Co., Ltd.)
Metals Data Book (Maruzen Publishing Co., Ltd.)NITE Chemical Information Risk Platform (CHRIP)