N,N-Diethyl-m-toluamide
Product identifier
- Product name: N,N-Diethyl-m-toluamide
- CBnumber: CB8853064
- CAS: 134-62-3
- EINECS Number: 205-149-7
- Synonyms: DEET,diethyltoluamide
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 400-158-6606
Classification of the substance or mixture
Acute toxicity - Category 4, Oral
Skin irritation, Category 2
Eye irritation, Category 2
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 3
Label elements
Pictogram(s)
- Signal wordWarning
H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
H336 May cause drowsiness or dizziness
H402 Harmful to aquatic life
H412 Harmful to aquatic life with long lasting effects
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P405 Store locked up.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P501 Dispose of contents/container to..…
P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P273 Avoid release to the environment.
P301+P317 IF SWALLOWED: Get medical help.
P330 Rinse mouth.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
none
P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards
no data available
Substance
- Product name: N,N-Diethyl-m-toluamide
- Synonyms: DEET,diethyltoluamide
- CAS: 134-62-3
- EC number: 205-149-7
- MF: C12H17NO
- MW: 191.27
Description of first aid measures
If inhaledFresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention .
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Rinse mouth. Do NOT induce vomiting. Rest. Refer for medical attention .
Most important symptoms and effects, both acute and delayed
SYMPTOMS: Symptoms of exposure to this compound may include eye and mucous membrane irritation. It can cause contact dermatitis, conjunctivitis, exacerbation of seborrhea and acne vulgaris. Eye contact may result in a smarting sensation. Ingestion of this material can cause central nervous system disturbances. Symptoms resulting from exposure to this compound include disorientation, staggering gait, slurred speech, crying out, episodes consisting of stiffening into a sitting position, extending of extremities, flexing of the fingers and dorsiflexing the toes. It may also cause jaundice, aplastic anemia, bleeding, convulsive seizure or death. It may irritate tender areas of the skin. It may also cause severe eye injury. Other symptoms are desquamation about the nose, dryness of face, a slight tingling sensation and a bullous eruption in the antecubital fossae. Irritation of the gastro-intestinal tract and coma are possible. It may cause purpuric or ecchymotic areas. ACUTE/CHRONIC HAZARDS: This compound is irritating to the skin, eyes and mucous membranes. When heated to decomposition it emits toxic fumes of carbon monoxide, carbon dioxide and nitrogen oxides. It may be harmful by inhalation or ingestion. (NTP, 1992)
Indication of any immediate medical attention and special treatment needed
Decontaminate the skin with soap and water . Eye contamination should be removed by prolonged flushing of the eye with copious amounts of clean water or saline. If irritation persists, specialized medical treatment should be obtained. Topical steroids and oral antihistamines have been used for severe skin reactions that occasionally follow application of DEET.
Extinguishing media
Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Specific Hazards Arising from the Chemical
This chemical is combustible. (NTP, 1992)
Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.
NFPA 704
| HEALTH | 2 | Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury (e.g. diethyl ether, ammonium phosphate, iodine) | |
| FIRE | 1 | Materials that require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur. Includes some finely divided suspended solids that do not require heating before ignition can occur. Flash point at or above 93.3 °C (200 °F). (e.g. mineral oil, ammonia) | |
| REACT | 0 | Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2) | |
| SPEC. HAZ. |
Personal precautions, protective equipment and emergency procedures
Avoid dust formation. Avoid breathing mist, gas or vapours.Avoid contacting with skin and eye. Use personal protective equipment.Wear chemical impermeable gloves. Ensure adequate ventilation.Remove all sources of ignition. Evacuate personnel to safe areas.Keep people away from and upwind of spill/leak.
Environmental precautions
Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Personal protection: complete protective clothing including self-contained breathing apparatus.
Methods and materials for containment and cleaning up
ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Use personal protective equipment. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Environmental precautions: Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Methods and materials for containment and cleaning up: Soak up with inert absorbent material and dispose of as hazardous waste. Keep in suitable, closed containers for disposal.
Precautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Separated from strong oxidants, acids, organic nitro compounds and food and feedstuffs. Keep in a well-ventilated room.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.
Control parameters
Occupational Exposure limit valuesno data available
no data available
Exposure controls
Ensure adequate ventilation. Handle in accordance with good industrial hygiene and safety practice. Set up emergency exits and the risk-elimination area.
Individual protection measures
Eye/face protectionWear tightly fitting safety goggles with side-shields conforming to EN 166(EU) or NIOSH (US).
Wear fire/flame resistant and impervious clothing. Handle with gloves. Gloves must be inspected prior to use. 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.
If the exposure limits are exceeded, irritation or other symptoms are experienced, use a full-face respirator.
no data available
Information on basic physicochemical properties
- Physical stateLiquid
- ColourClear
- Odour
Faint, characteristic odor
- Melting point/freezing point
197°C(lit.)
- Boiling point or initial boiling point and boiling range
160°C/19mmHg(lit.)
- Flammability
Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
- Lower and upper explosion limit/flammability limit
no data available
- Flash point
140°C(lit.)
- Auto-ignition temperature
358°C
- Decomposition temperature
no data available
- pH
no data available
- Kinematic viscosity
13.3 cP at 30 deg C
- SolubilityDMSO (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
- Partition coefficient n-octanol/water
log Kow = 2.02
- Vapour pressure<0.01 mm Hg ( 25 °C)
- Density and/or relative density0.996
- Relative vapour density0.996
- Particle characteristics
no data available
Reactivity
Decomposes on burning. This produces toxic and corrosive gases including nitrogen oxides. The solution in water is a strong base. It reacts violently with acid and is corrosive. Reacts violently with oxidants, nitric acid and organic nitro compounds. Attacks many metals in the presence of water.
Chemical stability
Stable under recommended storage conditions.
Possibility of hazardous reactions
The vapour is heavier than air.N,N-DIETHYL-M-TOLUAMIDE is incompatible with strong acids, strong bases and strong oxidizing agents. It hydrolyzes slowly in the presence of water. It has a solvent effect on most plastics, paints, and varnishes. It is also incompatible with rayon, acetate or dynel clothing. (NTP, 1992)
Conditions to avoid
no data available
Incompatible materials
Incompatible materials: Strong oxidizing agents, strong acids, strong bases, strong reducing agents
Hazardous decomposition products
When heated to decomposition it emits toxic fumes of /nitrogen oxides/.
Acute toxicity
- Oral: LD50 Rat oral 1892 mg/kg
- Inhalation: LC50 Rat inhalation >4100 mg/cu m/4 hr
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
EPA: Not classifiable as to human carcinogenicity. IARC: Not evaluated. NTP: Not evaluated
Reproductive toxicity
no data available
STOT-single exposure
no data available
STOT-repeated exposure
no data available
Aspiration hazard
no data available
Toxicity
- Toxicity to fish: LC50; Species: Pimephales promelas (fathead minnow); Conditions: freshwater, flow through, 25 deg C, pH 7.3, hardness 45.0 mg/L CaCO3, alkalinity 47.0 mg/L CaCO3, dissolved oxygen 6.1 mg/L; Concentration: 110000 ug/L for 96 hr (95% confidence interval: 106000-114000 ug/L) /98% purity
- Toxicity to daphnia and other aquatic invertebrates: EC50; Species: Daphnia magna (Water Flea) age <24 hr neonate; Conditions: freshwater, renewal, 19.4-20.3 deg C, pH 8.2-8.6, hardness 134-136 mg/L CaCO3, alkalinity 179-182 mg/L CaCO3, dissolved oxygen > or =7.7 mg/L; Concentration: 24000 ug/L for 21 days (95% confidence interval: 21000-27000 ug/L); Effect: reproduction, decreased progeny counts/numbers /98.68% purity
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
Persistence and degradability
AEROBIC: DEET, present at 100 mg/L, did not biodegrade in 4 weeks using an activated sludge inoculum at 30 mg/L in the Japanese MITI(1). However, in a OECD 301B test DEET was shown to biodegrade 83.8% in 4 weeks using activated sewage sludge and measuring carbon dioxide produced(2). DEET reached 30% and 37% of the theoretical oxygen demand and chemical oxygen demand after 7 days in another test, but biodegradation seemed to halt after reaching 40 and 48%, respectively(2). DEET was shown to biodegrade using Po River water, forming three transformation products(3). Pseudomonas putida DTB (isolated from activated sludge from a municipal wastewater treatment plant in Ithaca, NY) degraded DEET to 3-methylbenzoate and diethylamine under aerobic conditions(4).
Bioaccumulative potential
BCF values of <2.4 and 0.8-2.4 were measured using carp (Cyprinus carpio) which were exposed to 0.05 and 0.50 mg/L of DEET, respectively, over a 6-week period(1). According to a classification scheme(2), these BCF values suggest the potential for bioconcentration in aquatic organisms is low(SRC).
Mobility in soil
Using a structure estimation method based on molecular connectivity indices(1), the Koc of DEET can be estimated to be 115(SRC). According to a classification scheme(2), this estimated Koc value suggests that DEET is expected to have moderate mobility in soil.
Other adverse effects
no data available
Disposal methods
ProductThe material can be disposed of by removal to a licensed chemical destruction plant or by controlled incineration with flue gas scrubbing. Do not contaminate water, foodstuffs, feed or seed by storage or disposal. Do not discharge to sewer systems.
Containers can be triply rinsed (or equivalent) and offered for recycling or reconditioning. Alternatively, the packaging can be punctured to make it unusable for other purposes and then be disposed of in a sanitary landfill. Controlled incineration with flue gas scrubbing is possible for combustible packaging materials.
UN Number
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
UN Proper Shipping Name
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
Transport hazard class(es)
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
Packing group, if applicable
ADR/RID: Not dangerous goods. (For reference only, please check.)
IMDG: Not dangerous goods. (For reference only, please check.)
IATA: Not dangerous goods. (For reference only, please check.)
Environmental hazards
ADR/RID: No
IMDG: No
IATA: No
Special precautions for user
no data available
Transport in bulk according to IMO instruments
no data available
Safety, health and environmental regulations specific for the product in question
European Inventory of Existing Commercial Chemical Substances (EINECS)Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
- HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
- CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
- Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
- ECHA - European Chemicals Agency, website: https://echa.europa.eu/
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.