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SAFETY DATA SHEETCreation: April 22, 2020

1. Chemical and Manufacture Information
1.1 Product NameSUMIDIA (sintered diamond) WD700/800/900
1.2 Company Information
Company Name:
Address:
Phone Number:
Fax Number:
Emergency Phone Number:

Sumitomo Electric Hardmetal Corp.
1-1-1, Koya-kita, Itami, Hyogo, 664-0016 Japan+81-72-771-0555+81-72-773-1723+81-72-771-0555 (Environmental administrator)

1.3 Recommend Use and Restrictions on Use of the Sintered Diamond
Wire-drawing diamond dies, etc.
1.4 Attention to the Phase/State of the Sintered Diamond Sintered diamonds in the solid state are not explosive, flammable, combustible, pyrophoric,
water-tight, or oxidizing and are chemically stable and safe under normal use conditions.
 This SDS provides information on the raw material of sintered diamond and the dust
generated during its processing.
 WD900 is a combination of the sintered diamond parts and the cemented carbide part or thetungsten alloy.
 The SDS of cemented carbide shows
https://www.sumitool.com/en/csr/assets/pdf/sds_carbide_en.pdf or the website of eachsuppliers The SDS of tungsten alloy shows the website of each suppliers

2. Hazard Identification
2.1 GHS Classification
No GHS classification was made for impurities in sintered diamonds and the dust, fumes, or vapor thatmight occur from the sintered diamond production process because data on the burning rate tests were
not available. The GHS classifications for the hazards of each of the metallic ingredients (cobalt, nickel,
manganese, and aluminum), which are the main ingredients and impurities of sintered diamonds, arelisted below. Other hazards and harmful effects (adverse health effects, environmental effects,
physical/chemical hazards) that are not listed are uncategorized, unclassified, or non-applicable by the
GHS.
 Cobalt
Health Hazards:

Environmental Hazards:
 Nickel
Health Hazards:

 Respiratory sensitization
 Skin sensitization
 Carcinogenicity
 Specific target organ toxicity (single
exposure) Specific target organ toxicity (repeatedexposure) Hazardous to the aquatic environmentChronic Respiratory sensitization
 Skin sensitization
 Carcinogenicity
 Specific target organ toxicity (single

Category 1
Category 1
Category 2
Category 3 (Respiratory
tract irritation)
Category 1 (Respiratory)Category 4

Category 1
Category 1
Category 2
Category 1 (Respiratory,

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Environmental Hazards:
 Manganese
Health Hazards:

Environmental Hazards:
 Aluminum
Health Hazards:

Environmental Hazards:

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exposure) Specific target organ toxicity (repeatedexposure) Hazardous to the aquatic environmentChronic

kidney)Category 1 (Respiratory)

 Skin corrosion/irritation
 Serious eye damage/eye irritation
 Reproductive toxicity
 Specific target organ toxicity (single
exposure) Specific target organ toxicity (repeatedexposure) Hazardous to the aquatic environmentChronic

Category 3
Category 2B
Category 1B
Category 1 (Respiratory)

 Specific target organ toxicity (single
exposure) Specific target organ toxicity (repeatedexposure) Hazardous to the aquatic environment

Category 1 (Respiratory)Category 4

Category 1 (Nervous
system, respiratory)Category 4

Category 1 (Respiratory)Category 4

2.2 GHS label elements
The GHS label elements for each of the main ingredients, cobalt and the metallic ingredients (nickel,
manganese, and aluminum), which are impurities of sintered diamonds, are listed below.
CobaltNickelManganese
Hazard Pictograms:

Signal Words:
HazardStatements:










Risk of causing anallergic skinreaction.
Risk of causing
allergies, asthma
or breathingdifficulties if
inhaled.
Risk of respiratory
irritation.
Suspected of
causing cancer.
Causes respiratory,
cardiovascular,
thyroidal, andhematological
failure due tolong-term or
repeated exposure.
May be harmful toaquatic life due tolong-lasting
effects.










DangerRisk of causing
allergies, asthma or
breathingdifficulties if
inhaled.
Risk of causing anallergic skinreaction.
Suspected of
causing cancer.
Causes respiratory
and renal failure.
Cause ofrespiratory failure
due to long-term or
repeated exposure.
May be harmful toaquatic life due tolong-lasting effects.









Causes mild skinirritation.
Causes eye
irritation.
May damage
fertility or unborn
child.
Causes respiratory
failure.
Cause of nervous
and respiratory
failure due to longterm or repeatedexposure.
May be harmful toaquatic life due tolong-lasting
effects.

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Recautionary
Statement:

3/9[Prevention]
 Do not handle until all safety precautions have been read and understood.
 Use appropriate personal protection and ventilation system keeping awayfrom exposure.
 Wear proper protective gloves When ventilation is insufficient, wear a respirator as required.
 Do not breathe dust, fumes, or vapor.
 Do not eat, drink, or smoke in the handling area.
 After handling, wash the hands and face well and rinse the mouth.
 Avoid release into the environment.
[First-aid Measures] If inhaled, move to fresh air and rest in a posture easy to breathe.
 If respiratory symptoms occur, contact a doctor.
 Seek medical advice/attention if you feel unwell.
 Take off contaminated clothing and wash before reuse.
 If on skin, rinse away immediately with a large amount of water and soap.
 If skin irritation occurs, contact a doctor and seek medical advice/attention.
 If exposed or concerned, seek medical advice/attention.
 If dust is in the eyes, immediately wash away with clean water (remove thecontact lenses if possible). If irritation persists, seek medical
advice/attention.
 If a large amount of dust is swallowed, seek medical advice/attention afteringesting plenty of water to dilute.
[Storage] Avoid drastic changes of temperature and high humidity.
[Disposal]
 Dispose of contents/container to an approved waste disposal plant incompliance with all laws.

Aluminum
Hazard Pictograms:

Signal Words:
HazardStatements:

Recautionary
Statement:

DangerContact with water releases combustible,inflammable gases.
Causes respiratory failure.
Cause of respiratory failure due to long-term or repeated exposure.
May be harmful to aquatic life due to long-lasting effects.
[Prevention]

Keep away from any possible contact with water.

Handle under inert gas. Protect from moisture.

Do not breathe dust/gas/mist/vapor/spray.

Wash hands thoroughly after handling.

Do not eat, drink or smoke when using this productWear protective gloves/protective clothing/eye protection/faceprotection.

Avoid release to the environment.
[First-aid Measures]
If exposed or concerned: Call a POISON CENTER or
doctor/physician.

Seek medical advice/attention if you feel unwell.
Specific treatment is required. (see … on this label)
Brush off loose particles from skin. Immerse in cool water/wrap in wet

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bandages.
In case of fire: Use appropriate extinguishing agent for extinction.
[Storage]Store in a dry place. Store in a closed container.
Store locked up.
[Disposal]Dispose of contents/container to an approved waste disposal plant incompliance with all laws.

3. Composition/Information on Ingredients
 Distinction of a single product or mixture: Mixture*Sintered diamonds are mainly composed of diamonds and cobalt and may contain nickel, manganese,and aluminum as impurities.
 Main ingredients and Contents and Scope of contents (WD700,900 series)
Composition
DiamondCobaltNickelManganese
Aluminum

Chemicalformula
C
Co
Ni
Mn
Al

CAS No.

Classification No.
of by PRTR Law

Enforcement
Serial No. byIndustrial Safety
and Health Laws

Formulamass%

7782-40-3
7440-48-4
7440-02-0
7439-96-5
7429-90-5

Class 1-No. 132 AttachedClass 1-No. 308 AttachedClass 1-No. 311 Attached-

No. 9-172 Table
No. 9-418 Table
No. 9-550 Table
No. 9-37 Table

75-85
15-25
0-15
0-15
0-5

Enforcement Serial
No. by Industrial
Safety and Health
Laws

Formulamass%

No. 9-172 Table
No. 9-418 Table
No. 9-550 Table
No. 9-37 Table

96-99
0-20
0-20
0-20
0-5

 Main ingredients and Contents and Scope of contents (WD800 series)
Composition
DiamondCobaltNickelManganese
Aluminum

Chemicalformula

CAS No.

Classification No.
of by PRTR Law

C
Co
Ni
Mn
Al

7782-40-3
7440-48-4
7440-02-0
7439-96-5
7429-90-5

Class 1-No. 132 AttachedClass 1-No. 308 AttachedClass 1-No. 311 Attached-4. Emergency and First Aid Procedures
4.1 Inhalation
 If dust is inhaled or the worker exhibits trouble breathing (coughing, panting, breathless etc.), moveto fresh air and allow to rest in a posture that permits easy breathing. If breathing is difficult,administer oxygen. If breathing has stopped, try artificial respiration. Seek immediate medical
attention.
 If irritation or a rash is continuous for a long period, seek medical attention.
4.2 Skin Contact
 When dust contacts the skin, remove the contaminated clothes and clean the skin with soap and water.
If irritation or a rash is continuous for a long period, seek medical attention.
4.3 Eye Contact
 When dust gets in the eyes, flush with running water (remove the contact lenses if possible). If
irritation persists, seek medical attention.
4.4 Ingestion When a large volume of dust is swallowed, drink plenty of water to dilute and seek immediate medical
attention.

5. Fire Procedures
5.1 Extinguishing media
 When ignition of dust occurs, use dry sand, expanded vermiculite, dilatable perlite, ABC type (forgeneral, oil and electricity fire) powder fire extinguisher, or water, but when the dust contains lightDocument number: SHM-WD0789-1

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metals, for example magnesium or aluminum, do not use water.
 In case of minor fire of aluminum: use powder fire extinguishing agent, soda ash, lime and sand; incase of major fire: use dry sand, powder fire extinguishing agent, soda ash, and lime.
5.2 Protection of firefighters
 Use protective clothing, a dust-proof mask, or a self-contained breathing apparatus.

6. Spill and Leak Procedures
6.1 Personal precautions
 Clean-up personnel should wear personal protective equipment, including respiratory protection thatis appropriate for minimizing the magnitude of exposure.
6.2 Environmental precautions
 Dust must be treated as an industrial waste and must not leak into the water system.
6.3 Methods and materials for containment and cleaning up
 For removal of dust, isolate the area and do not walk through else material will become scattered.
Remove dust using a vacuum equipped with a filter sufficient to remove metal dust and prevent theircirculation (a high efficiency particulate air [HEPA] filter is recommended). If an appropriate vacuum
is unavailable, use mist, a wet dust mop, or another wet clean-up method to remove the dust.

7. Handling and Storage
7.1 Handling Diamonds are stable thus there is almost no effect on human health, but long term or repeated contact
with the dust or grinding liquid that contains cobalt, nickel, and manganese may damage the skin.
 When grinding or machining sintered diamonds, the cobalt, nickel, manganese, and aluminum
contained in the dust may be dispersed; use extraction to minimize the dust exposed to workers.
 Do not handle until all safety precautions have been read and understood.
 Do not breathe dust, fumes, or vapor.
 Do not eat, drink, and smoke in the diamond handling area.
 After handling, wash hands well and rinse the mouth.
 Avoid release into the environment.
7.2 Storage
 Avoid drastic changes of temperature and high humidity.

8. Exposure Controls and Personal Protection
8.1 Exposure Control･Permissible exposure limit in working environments (reference value)
OSHA* PEL*ACGIH* TLV*
Chemical
mg/m3
mg/m3
Composition
formula(Concentration of metal dust (Concentration of metal dust
DiamondCobaltC
Co

NickelNi

Manganese

Mn

AluminumAl*OSHA:*PEL:*ACGIH:
*TLV:
*N/A:

particles)

particles)

N/A
0.1(as Co)1.0(as Ni)5.0(as Mn)15(as Al)N/A
0.02(as Co)1.5(as Ni)0.2(as Mn)1.0(as Al)Occupational Safety & Health Administration U.S. Department
Permissible Exposure Limit
American Conference of Governmental Industrial Hygienists Inc.
Threshold Limit Value
Not Applicable

8.2 Protective measures

JSOH
Acceptableconcentration:
mg/m3
N/A
0.05
(as Co)1.0(as Ni)0.3(as Mn)0.7(as Al)Document number: SHM-WD0789-1

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 Respiratory protection:

Wear respiratory protective equipment or dust masks forprotection against the dust.
Wear protective gloves for protection against the dust.
Wear protective glasses or chemical safety goggles forprotection against the dust.
Avoid direct contact of dust with skin.
In order to remove attached dust, do not shake off clothes orpieces of cloth, but be sure to remove dust by laundering or
absorbing with a vacuum cleaner with suitable filters. Change
contaminated clothes to clean clothes.

 Hand protection:
 Eye protection:
 Skin and body protection:

9. Physical and Chemical Properties
Appearance:
Odor:
pH:
Melting point:
Boiling point:
Flash point:
Vapor pressure:Specific gravity:
Solubility:

10.

Black solid
No odorNo data
No data
No data
No data
No data
3~7.0
Insoluble

Stability and Reactivity

Each of the metallic ingredients (cobalt, nickel, manganese, and aluminum), which are the main
ingredients and impurities of sintered diamonds, has the following information about stability and reactivity
under specific conditions.
 Cobalt
Stability:
Possibility
reactions:ofhazardous

Conditions to avoid:
Incompatible materials:
Hazardous decomposition
products:
 NickelStability:
Possibility
reactions:ofhazardous

Conditions to avoid:
Hazardous decomposition
products:
 Manganese
Stability:
Possibility of hazardous
reactions: Stable to heat and contact with water.
 Ignite spontaneously in air.
 It reacts with strong oxidizing agents.
 It reacts violently with oxygen, and it poses a risk of fire or explosion.
 It reacts violently with acid to generate hydrogen.
 Contact with incompatible materials.
 Strong oxidizing agents, acid.
 By combustion, cobalt oxide and fumes of cobalt oxide may occur.

 It is considered stable in storage and handling in accordance with thelaws and regulations.
 Metallic nickel is usually stabilized against oxidation by the oxidefilm, fresh metal surfaces without oxide film are rapidly oxidized byair. Thus with fresh metallic nickel powder, there is a risk of ignitionin air.
 No data No dataStable under normal handling conditions.
If heated, generate harmful fumes.
It reacts violently with many non-metals (chlorine, fluorine,
oxygen, etc.) at high temperatures, and it poses a risk of fire or
explosion.
It reacts violently with hydrogen peroxide, bromine pentafluoride,Document number: SHM-WD0789-1

Conditions to avoid:Incompatible materials:



Hazardous decomposition
products: Aluminum
Stability:
Possibility
reactions:ofhazardous










Conditions to avoid:
Incompatible materials:
Hazardous decomposition
products:

11.





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nitrogen dioxide, and aluminum dust, and it poses a risk of fire or
explosion.
It reacts with boron, carbon, silicon, phosphorus, sulfur, andoxidizing agents.
It reacts explosively with nitric acid or ammonium nitrate.
In case of powder, it reacts with water or vapor to generatehydrogen.
When the powder and granule form is mixed with air, a dust
explosion may occur.
Heat at high temperature. Mixture and contact with incompatible
materials.
Strong oxidizing agents, strong acid (hydrogen peroxide, bromine
pentafluoride, nitrogen dioxide, non-metals, aluminum dust, etc.)
If heated, generate irritative, corrosive or toxic gases or fumes.

Powders, foils, and ribbons burn when heated or exposed to flamesNon-flammable solid.
When mixed with an oxidizing agent, it may ignite due tooverheating, impact, or friction and may ignite spontaneously due
to moisture or water.
When the powder and granule form is mixed with air, a dust
explosion may occur.
It may spontaneously ignite on contact with halogens.
On contact with water, acid or alkali, hydrogen is generated andmay explode.
It reacts with (powder) water and alcohol; it reacts violently withoxidizing agents, strong acids, and chlorinated hydrocarbon; andit poses a risk of fire or explosion
When the powder and granule form is mixed with air, a dust
explosion may occur.
Avoid fire, friction or shock.
Water, alkali, acid, oxidizing agents, alcohol
No data

Toxicological Information
Acute toxicity:
Skin corrosion/irritation:
Serious damage/irritation for eyes:
Respiratory sensitization or skin sensitization:
Germ cell mutagenicity:
Carcinogenicity:

No data available on sintered diamonds.
No data available on sintered diamonds.
No data available on sintered diamonds.
No data available on sintered diamonds.
No data available on sintered diamonds.
Group 2A on IARC, as cobalt powder: Suspected to becarcinogenic in humans (References: 1)
Reproductive toxicity:
No data available on sintered diamonds.
Specific Target Organ/Systemic Toxicity (Single No data available on sintered diamonds.
Exposure)
Specific Target Organ/Systemic Toxicity No data available on sintered diamonds.
(Repeated Exposure)
Aspiration hazard:
No data available on sintered diamonds.

12.

Ecological Information

Hazardous to the aquatic environment-acute There has been no evidence of hazardous to the aquatic environment-acute for sintered diamonds.
Hazardous to the aquatic environment-Chronic There has been no evidence of hazardous to the aquatic environment-chronic for sintered diamonds.

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MOBILITY There has been no evidence of mobility for sintered diamonds.

13.

Disposal Consideration

Method for safe and environmental preferred disposal:
 In the case of disposal, it must be handled, based on the Waste Disposal and Public Cleaning Law.
(Domestic Law)

14.

Transport Information

International CodeUN No.:UN classification:
Marine pollutants:
National CodeLand regulations:
UN No.:UN classification:
Marine pollutants:

15.

Not applicableNot applicableNot applicableNot applicableNot applicableNot applicableNot applicable

Regulatory Information

Each of the metallic ingredients (cobalt, nickel, manganese, and aluminum), which are the main
ingredients and impurities of sintered diamonds, may require appropriate treatment in accordance with thefollowing and other relevant regulations.
 Law for Pollutant Release and Transfer Register (PRTR)
Cobalt“Class 1 designated chemical substances”, Cabinet Order No. 132
Nickel“Class 1 designated chemical substances”, Cabinet Order No. 308
Manganese“Class 1 designated chemical substances”, Cabinet Order No. 311
 Industrial Safety and Health Act
CobaltThe substances are defined in the Article 57-2 of the Act, and the cobalt islisted by No. 172 in the Appended Table 9 in Article 18-2 of the
Enforcement Order as “Dangerous or Harmful Substances to be reported
as to their names, etc.”
Article 2, Paragraph 1, Items 2 and 5, of the Ordinance on Prevention ofHazards due to Specified Chemical Substance, Specified chemical
substance class 2, Management class 2.
When the content of cobalt and cobalt oxide is less than 1%, the Ordinanceon Prevention of Hazards due to Specific Chemical Substance is notcovered.
NickelThe substances are defined in the Article 57-2 of the Act, and the nickel islisted by No. 418 in the Appended Table 9 in Article 18-2 of the
Enforcement Order as “Dangerous or Harmful Substances to be reported
as to their names, etc.”
Manganese
The substances are defined in the Article 57-2 of the Act, and themanganese is listed by No. 550 in the Appended Table 9 in Article 18-2 ofthe Enforcement Order as “Dangerous or Harmful Substances to bereported as to their names, etc.”
Aluminum
The substances are defined in the Article 57-2 of the Act, and thealuminum is listed by No. 37 in the Appended Table 9 in Article 18-2 ofthe Enforcement Order as “Dangerous or Harmful Substances to bereported as to their names, etc.”

16.

Other Information

16.1 Other hazard and toxicity information
 Ingestion of the dust containing high levels of cobalt may cause damage to the blood, heart, thyroid
gland, and spleen. (References: 2)

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 Recent studies indicate that repeated inhalation or long term contact with cobalt or nickel ormanganese metal may affect the skin, respiratory organs, heart, etc. (References: from 3 to 6)
Although there is no carcinogenic knowledge about Sintered Diamond, there is the following knowledge
about impurities.
CobaltACGIHGroup A3: carcinogenic in animals, but the relevance to humans
is unknown
IARC
Group 2B: possibly carcinogenic to humans
JSOH
Group 2B: possibly carcinogenic to humans (the substance whose
evidence is not comparatively enough)NickelACGIHGroup A5: not suspected as a human carcinogen
IARC
Group 2B: possibly carcinogenic to humans
JSOH
Group 2B: possibly carcinogenic to humans (the substance whose
evidence is not comparatively enough)Manganese
IARC
not classifiable as to its carcinogenicity to humans*ACGIH:*IARC:

American Conference of Governmental Industrial Hygienists Inc.
*
International Agency for Research on Cancer*

16.2 Handling of the descriptions in this document
The details in this SDS have been based on our best investigations and evidence. The information may
be revised according to new evidence, tests etc.; however, the figure of contents, physical, chemical
properties or others are not guaranteed. And cautions are set for normal usage, do not guarantee a safety.
16.3 Reference URLs
 Ministry of Economy, Trade and Industry: Homepage of Ministry of Environment (Pollutant
Release and Transfer Register): Homepage of Ministry of Health, Labor & Welfare(Industrial Safety and Health Act): Homepage of Japan Industrial Safety and Health
Association:
 IARC (International Agency for Research on Cancer): Supplier of ICSC Cards:
 National Institute of Technology and Evaluation:

http://www.meti.go.jp/
http://www.env.go.jp/
http://www.mhlw.go.jp/
http://www.jaish.gr.jp/
http://monographs.iarc.fr/
http://www.nihs.go.jp/ICSC/
http://www.safe.nite.go.jp/ghs/list.html

16.4 Reference Documents(1) IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, vol. 86 (2006).
(2) Food & Drug Research Laboratories, study No. 8005B (4.11.84).
(3) T. Shirakawa et al., Chest. 95, 29 (1989).
(4) International Chemical Safety Cards (cobalt, chromium, nickel, nickel oxide, magnesium oxide,
aluminium oxide).
(5) Danger and hazardous property handbook of a chemical substance (Japan Industrial Safety &Health Association).
(6) A. O. Bech et al., Brit. J. Ind., 19, 239 (1962).
16.5 Revision History
Establishment April 22, 2020

End of document