-MERCHEM LIMITED
SAFETY DATA SHEET
MSDS NO: 18
THIRAM
1. IDENTIFICATION OF THE SUBSTANCE OR PREPARATION AND THE COMPANY/UNDERTAKING
Tetramethylthiuram disulfide
Product name
Merchem Limited,2nd Floor, Malankara Centre,
Supplier
MG Road, Ernakulam,
Cochin ?682035, Kerala, India
Tel. + 91-484-2382285
Fax. + 91-484-2380199
+ 91-484-4089300, (Fax. + 91-484-4089310)
Merchem Limited, Cochin, India
Emergency telephone
Vulcanisation accelerator, biocide
Intended use
2. COMPOSITION/INFORMATION ON INGREDIENTS
Information on hazardous ingredients
Tetramethylthiuram disulfide
Chemical description
Composition / information on ingredients
Chemical name
Number % w/w CAS-number
1 > 98 137-26-8 Tetramethylthiuram disulfide
Number EC-number Annex-1 number Symbol(s) Risk-phrase(s)
1 205-286-2 006-005-00-4 Xi Xn N R20/22 R36/38 R48/22 R43
R50/53
Formula: C6H12N2S4.
Other information
Balance: non-hazardous ingredients.
3. HAZARDS IDENTIFICATION
Harmful by inhalation and if swallowed.
Irritating to eyes and skin.
May cause sensitization by skin contact.
Harmful: danger of serious damage to health by prolonged exposure if swallowed.
May cause alcohol intolerance.
Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
4. FIRST AID MEASURES
May cause alcohol intolerance. Harmful by inhalation and if swallowed. Irritating to eyes
Symptoms and effects
and skin. Repeated contact may cause skin sensitization.
First aid
Do not drink alcohol after exposure.
General
Move to fresh air. If symptoms persist, seek medical advice.
Inhalation
Remove al contaminated clothing immediately. Wash off with plenty of soap and water.
Skin
Seek medical advice if irritation develops. Launder clothes before reuse.
Eye Rinse immediately and as long as possible with plenty of water. Eyelids should be held
away from the eyebal to ensure thorough rinsing. Seek medical advice if irritation
persists.
Rinse mouth. Give water to drink. Induce vomiting. Never induce vomiting in
Ingestion
unconscious or confused persons. Seek medical advice.
Advice to physician No specific recommendations.
5. FIRE-FIGHTING MEASURES
waterspray, water mist, foam, dry chemical powder.
Extinguishing media
Unsuitable extinguishing media waterjet.
Special exposure hazards Emits toxic fumes under fire conditions.
Hazardous decomposition/ carbon monoxide (CO), Sulfur oxides (SOx), nitrous gases (NOx).
combustion products
Wear self contained breathing apparatus.
Protective equipment
Do not allow run-off from fire fighting to enter drains or water courses.
Other information
MERCHEM LIMITED
SAFETY DATA SHEET
MSDS NO: 18
THIRAM
6. ACCIDENTAL RELEASE MEASURES
For personal protection see Section 8. Avoid dust generation.
Personal precautions
Do not discharge into sewer.
Environmental precautions
Collect as much as possible in a clean container for (preferable) reuse or disposal.
Methods for cleaning up
7. HANDLING AND STORAGE
Do not breathe dust. Avoid contact with skin and eyes.
Handling
Dust/air mixtures may ignite violently upon exposure to sparks or sources of ignition.
Fire and explosion prevention
Dust explosion class (VDI 2263): St 2.
Kst: 239 bar.m/s.
Maximum rate of pressure rise: 1060 bar/s.
Maximum corrected explosion pressure: 7,4 bar.
Storage requirements Store in a dry and cool place.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Ensure good ventilation and local exhaustion of the working area. Avoid dust
Engineering controls
generation.
Exposure limits
Name
OES-TWA 5.0 mg/m?br>
Tetramethylthiuram disulfide
OES-STEL 10.0 mg/m?br>
Personal protection
In case of insufficient ventilation, wear suitable respiratory equipment.
Respiratory
Wear suitable gloves with long cuffs.
Hand
Wear eye/face protection.
Eye
Wear suitable protective clothing.
Skin and body
9. PHYSICAL AND CHEMICAL PROPERTIES
powder; powder
Appearance
white, light cream
Colour
slightly amine like
Odour
not relevant
Boiling point/range
min. 142 ?C
Melting point/range
approx. 150 ?(Cleveland, open cup)
C
Flash point
not determined
Flammability
> 400 癈
Autoignition temperature
dust explosion hazard
Explosive properties
Lower Explosion Limit (LEL): 10 g/m?
Explosion limits
Minimum ignition energy: =<10 mJ,
Limiting oxygene concentration (LOC) (V >=1 m?: 7.4 Vol % Oxygen.
not applicable
Oxidizing properties
negligible (20 癈)
Vapour pressure
1425 kg/m?(20 ? C)
Density
410-450 kg/m?(20 ? C)
Bulk density
30 ppm
Solubility in water
acetone, ether, chloroform
Solubility in other solvents
not determined
pH value
not determined
Partition coefficient
n-octanol/water
not applicable
Relative vapour density (air=1)
not applicable
Viscosity
MERCHEM LIMITED
SAFETY DATA SHEET
MSDS NO: 18
THIRAM
10. STABILITY AND REACTIVITY
Stable under recommended storage and handling conditions (see section 7).
Stability
No specific recommendations.
Conditions to avoid
Avoid exposure to: oxidizing agents, strong acid.
Materials to avoid
No hazardous decomposition products known.
Hazardous decomposition
products
During the vulcanization process, traces of carcinogenic N-nitrosamines may be formed
Other information
from decomposition products (amines) in the presence of nitrosating agents.
11. TOXICOLOGICAL INFORMATION
Tetramethylthiuram disulfide
Name
Acute toxicity
rat: 1080 mg/kg.
Oral LD50
rabbit: > 7940 mg/kg.
Dermal LD50
rat: 4.42 mg/l.
Inhalation LC50
Irritation
Practically non-irritating
Skin
Practically non-irritating
Eye
Sensitizing
Sensitization
Not mutagenic.
Genotoxicity
Not teratogenic,
Other toxicological information
not carcinogenic (rat),
Micronucleus test (mouse): NOEL (No Observable Effect Level) > 200 mg/kg (Lit.),
Neurotoxic.
Human experience:
Patch testing (skin): Sensitizing, irritating.
12. ECOLOGICAL INFORMATION
Name Tetramethylthiuram disulfide
Ecotoxicity 96h-LC50 (Oncorhynchus mykiss): 0.13 mg/l,
96h-LC50 (Lepomis macrochirus): 0.13 mg/l,
fish
96h-LC50 (Pimephales promelas): 0.27 mg/l.
daphnia
48h-EC50 (Daphnia magna): 0.24 mg/l.
algae
96h-IC50: 1.0 mg/l (Chlorel a pyrenoidosa) (Lit.).
bacteria
15min-EC50: 1.9 mg/l (Photobacterium phosphoreum) (Lit.)
13. DISPOSAL CONSIDERATIONS
Avoid discharge into the environment. This material and its container must be disposed
of as hazardous waste.
Product
Small quantities: According to local regulations.
Large quantities: Consult Merchem for special advice.
According to local regulations.
Waste code number: Please refer to your specific industry in the European Waste
Contaminated packaging
Catalogue.
Other information
14. TRANSPORT INFORMATION
Land transport (ADR/ RID)
9
ADR class
9 III
RID class ADR/RID packing group
90 3077
Hazard Identification No. Substance Identification No.
3077
UN number
Environmentally hazardous substance, solid, n.o.s. (Tetramethylthiuram disulfide)
Proper Shipping Name
ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.
(Tetramethylthiuram disulfide)
MERCHEM LIMITED
SAFETY DATA SHEET
MSDS NO: 18
THIRAM
9
Class
Sea transport (IMDG-code/ IMO)
IMO/IMDG code
III UN number 3077
Packing group
F-A, S-F
EMS Subsidiary Risk
yes
Marine pollutant
Environmentally hazardous substance, solid, n.o.s. (Tetramethylthiuram disulfide)
Proper Shipping Name
USA: Code of Federal Regulations, Title 49, part 172.101 App. A: Thiram Reportable
Other information
quantity (RQ) 10 lbs (4.54 kgs).
Air transport (ICAO-TI/ IATA-DGR)
3077
ICAO-TI/IATA-DGR UN number
9 III
Class Packing group
Environmentally hazardous substance, solid, n.o.s. (Tetramethylthiuram disulfide)
Proper Shipping Name
USA: Code of Federal Regulations, Title 49, part 172.101 App. A: Thiram Reportable
Other information
quantity (RQ) 10 lbs (4.54 kgs).
15. REGULATORY INFORMATION
Tetramethylthiuram disulfide
Chemical description
Label ing according to EC See section 2
directives Annex-1 to directive 67/548/EEC
EC-number
Classification based on
HARMFUL (Xn) DANGEROUS FOR THE
Symbol(s)
ENVIRONMENT (N)
R 20/22 Harmful by inhalation and if swal owed
R(isk) phrase(s)
R 36/38 Irritating to eyes and skin
R 43 May cause sensitization by skin contact
R 48/22 Harmful: danger of serious damage to health by prolonged exposure if
swallowed
R 50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in the
aquatic environment
S(afety) phrase(s) S 26 In case of contact with eyes, rinse immediately with plenty of water and seek
medical advice
S 36/37 Wear suitable protective clothing and gloves
S 60 This material and its container must be disposed of as hazardous waste
S 61 Avoid release to the environment. Refer to special instructions/Safety data sheets
Other information
None
16. OTHER INFORMATION
This information only concerns the above mentioned product and does not need to be valid if used with other product(s) or
in any process. The information is to our best present knowledge correct and complete and is given in good faith but without
warranty. It remains the user's own responsibility to make sure that the information is appropriate and complete for his
special use of this product.
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