582-61-6

registration deadline.
Relevant identified uses of the substance or mixture and uses advised against
Identified uses: Laboratory chemicals, Manufacture of substances

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SECTION 2: Hazards identification
Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008
Flammable liquids (Category 2), H225
Skin irritation (Category 2), H315
Eye irritation (Category 2), H319
Specific target organ toxicity - repeated exposure (Category 1), H372
For the full text of the H-Statements mentioned in this Section, see Section 16.
Classification according to EU Directives 67/548/EEC or 1999/45/EC
F Highly flammableR11
T ToxicR48/23/24/25
Xi IrritantR38
For the full text of the R-phrases mentioned in this Section, see Section 16.
Label elements
Labelling according Regulation (EC) No 1272/2008
Pictogram
Signal wordDanger
Hazard statement(s)
H225Highly flammable liquid and vapour.
H315Causes skin irritation.
H319Causes serious eye irritation.
H372Causes damage to organs through prolonged or repeated exposure.
Precautionary statement(s)
P210Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
P305 + P351 + P338IF IN EYES: Rinse cautiously with water for several minutes. Remove
contact lenses, if present and easy to do. Continue rinsing.
P314Get medical advice/ attention if you feel unwell.
Supplemental Hazardnone
Statements
According to European Directive 67/548/EEC as amended.
Hazard symbol(s)F Highly flammable
T Toxic
R-phrase(s)
R11Highly flammable.
R38Irritating to skin.
R48/23/24/25Toxic: danger of serious damage to health by prolonged exposure
through inhalation, in contact with skin and if swallowed.
S-phrase(s)
S16Keep away from sources of ignition - No smoking.
Other hazards - none

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SECTION 3: Composition/information on ingredients
Mixtures
Synonyms: Benzoic acid azide solution
Benzazide solution
Molecular Weight: 147,13 g/mol
Hazardous ingredients according to Regulation (EC) No 1272/2008
ComponentClassificationConcentration
tert-Butyl methyl ether
CAS-No.1634-04-4Flam. Liq. 2; Skin Irrit. 2;50 - 100 %
EC-No.216-653-1H225, H315
Index-No.603-181-00-X
Benzoyl azide
CAS-No.582-61-6Self-react. B; Skin Irrit. 2; Eye10 - 20 %
Irrit. 2; STOT RE 1; H241,
H315, H319, H372
Hazardous ingredients according to Directive 1999/45/EC
ComponentClassificationConcentration
tert-Butyl methyl ether
CAS-No.1634-04-4F, Xi, R11 - R3850 - 100 %
EC-No.216-653-1
Index-No.603-181-00-X
Benzoyl azide
CAS-No.582-61-6T, R 5 - R36/38 -10 - 20 %
R48/23/24/25
For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16

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SECTION 4: First aid measures
Description of first aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician.
In case of eye contact
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
If swallowed
Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with
water. Consult a physician.
Most important symptoms and effects, both acute and delayed
The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in
section 11
Indication of any immediate medical attention and special treatment needed
no data available

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SECTION 5: Firefighting measures
Extinguishing media
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, nitrogen oxides (NOx)
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.
Further information
Use water spray to cool unopened containers.

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SECTION 6: Accidental release measures
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid breathing vapours, mist or gas. Ensure adequate ventilation.
Remove all sources of ignition. Evacuate personnel to safe areas. Beware of vapours accumulating to
form explosive concentrations. Vapours can accumulate in low areas.
For personal protection see section 8.
Environmental precautions
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.
Methods and materials for containment and cleaning up
Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and
place in container for disposal according to local regulations (see section 13).
Reference to other sections
For disposal see section 13.

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SECTION 7: Handling and storage
Precautions for safe handling
Avoid contact with skin and eyes. Avoid inhalation of vapour or mist.
Keep away from sources of ignition - No smoking.Take measures to prevent the build up of electrostatic
charge.
For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are
opened must be carefully resealed and kept upright to prevent leakage.
Recommended storage temperature: -20 °C
Light sensitive. Over time, pressure may increase causing containers to burst
Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated

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SECTION 8: Exposure controls/personal protection
Control parameters
Components with workplace control parameters
Exposure controls
Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and
at the end of workday.
Personal protective equipment
Eye/face protection
Face shield and safety glasses Use equipment for eye protection tested and approved under
appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
(without touching glove's outer surface) to avoid skin contact with this product. Dispose of
contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
the standard EN 374 derived from it.
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0,4 mm
Break through time: 120 min
Material tested:Camatril® (KCL 730 / Z677442, Size M)
data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, test method: EN374
If used in solution, or mixed with other substances, and under conditions which differ from EN 374,
contact the supplier of the CE approved gloves. This recommendation is advisory only and must
be evaluated by an industrial hygienist and safety officer familiar with the specific situation of
anticipated use by our customers. It should not be construed as offering an approval for any
specific use scenario.
Body Protection
Complete suit protecting against chemicals, Flame retardant antistatic protective clothing, The type
of protective equipment must be selected according to the concentration and amount of the
dangerous substance at the specific workplace.
Respiratory protection
Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator
with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup
to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air
respirator. Use respirators and components tested and approved under appropriate government
standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure
Prevent further leakage or spillage if safe to do so. Do not let product enter drains.

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SECTION 9: Physical and chemical properties
Information on basic physical and chemical properties
a) AppearanceForm: clear, liquid
Colour: colourless
b) Odourno data available
c) Odour Thresholdno data available
d) pHno data available
e) Melting point/freezingno data available
point
f) Initial boiling point and no data available
boiling range
g) Flash pointno data available
h) Evapouration rateno data available
i) Flammability (solid, gas) no data available
j) Upper/lowerno data available
flammability or
explosive limits
k) Vapour pressureno data available
l) Vapour densityno data available
m) Relative densityno data available
n) Water solubilityno data available
o) Partition coefficient: n- no data available
octanol/water
p) Auto-ignitionno data available
temperature
q) Decompositionno data available
temperature
r) Viscosityno data available
s) Explosive propertiesno data available
t) Oxidizing propertiesno data available
Other safety information
no data available

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SECTION 10: Stability and reactivity
Reactivity
no data available
Chemical stability
Stable under recommended storage conditions.
Possibility of hazardous reactions
no data available
Conditions to avoid
Heat, flames and sparks. Extremes of temperature and direct sunlight.
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Other decomposition products - no data available
In the event of fire: see section 5

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SECTION 11: Toxicological information
Information on toxicological effects
Acute toxicity
LD50 Oral - rat - 4.000 mg/kg (tert-Butyl methyl ether)
LC50 Inhalation - rat - 4 h - 23576 ppm (tert-Butyl methyl ether)
Skin corrosion/irritation
Skin - rabbit
Result: Skin irritation
Serious eye damage/eye irritation
Eyes - rabbit (tert-Butyl methyl ether)
Result: No eye irritation
Respiratory or skin sensitisation
Will not occur (tert-Butyl methyl ether)
Germ cell mutagenicity
no data available (tert-Butyl methyl ether)
Carcinogenicity
IARC:3 - Group 3: Not classifiable as to its carcinogenicity to humans (tert-Butyl methyl ether)
Reproductive toxicity
no data available (tert-Butyl methyl ether)
Specific target organ toxicity - single exposure
no data available (tert-Butyl methyl ether)
Specific target organ toxicity - repeated exposure
no data available
Aspiration hazard
no data available (tert-Butyl methyl ether)
Additional Information
RTECS: Not available
Nausea, Vomiting, Dizziness, Central nervous system depression, Aspiration or inhalation may cause
chemical pneumonitis., MTBE (methyl-tert-butyl ether) is reported to metabolize to tert-butyl alcohol and
formaldehyde by microsomal demethylation, MTBE (methyl-tert-butyl ether) should be considered a
"potential human carcinogen" due to an increase in leydig interstitial cell tumors of testes in male rats and
an increase in lymphomas, leukemias, and uterine sarcomas in female rats., In another unpublished study
MTBE was shown to be carcinogenic due to "increased incidence of a rare type of kidney tumor" in male
rats and an "increase in the incidence of hepatocellular adenomas" in female mice., To the best of our
knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.
(tert-Butyl methyl ether)
Central nervous system - (tert-Butyl methyl ether)

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SECTION 12: Ecological information
Toxicity
Toxicity to fishLC50 - Pimephales promelas (fathead minnow) - 672,00 mg/l - 96 h (tert-Butyl
methyl ether)
LC50 - other fish - > 1.000,00 mg/l - 96 h (tert-Butyl methyl ether)
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available (tert-Butyl methyl ether)
Results of PBT and vPvB assessment
PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
Other adverse effects
no data available

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SECTION 13: Disposal considerations
Waste treatment methods
Product
Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting
as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal
company.
Contaminated packaging
Dispose of as unused product.

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SECTION 14: Transport information
UN number
ADR/RID: 2398IMDG: 2398IATA: 2398
UN proper shipping name
ADR/RID: METHYL tert-BUTYL ETHER, SOLUTION
IMDG: METHYL tert-BUTYL ETHER, SOLUTION
IATA:Methyl tert-butyl ether, SOLUTION
Transport hazard class(es)
ADR/RID: 3IMDG: 3IATA: 3
Packaging group
ADR/RID: IIIMDG: IIIATA: II
Environmental hazards
ADR/RID: noIMDG Marine pollutant: noIATA: no
Special precautions for user
no data available

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SECTION 15 - REGULATORY INFORMATION
N/A

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SECTION 16 - ADDITIONAL INFORMATION
N/A