Tetrahydrofuran
Product identifier
- Product name: Tetrahydrofuran
- CBnumber: CB6852795
- CAS: 109-99-9
- EINECS Number: 203-726-8
- Synonyms: Tetrahydrofuran,THF
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
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordDanger
Substance
- Product name: Tetrahydrofuran
- Synonyms: Tetrahydrofuran,THF
- CAS: 109-99-9
- EC number: 203-726-8
- MF: C4H8O
- MW: 72.11
Description of first aid measures
General adviceMost important symptoms and effects, both acute and delayed
Indication of any immediate medical attention and special treatment needed
Extinguishing media
Suitable extinguishing mediaSpecial hazards arising from the substance or mixture
Carbon oxides Combustible.
Pay attention to flashback.
Vapors are heavier than air and may spread along floors.
Development of hazardous combustion gases or vapours possible in the event of fire. Forms explosive mixtures with air at ambient temperatures.
Advice for firefighters
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.
Further information
Remove container from danger zone and cool with water. Prevent fire extinguishing water from contaminating surface water or the ground water system.
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 | 3 | Liquids and solids (including finely divided suspended solids) that can be ignited under almost all ambient temperature conditions . Liquids having a flash point below 22.8 °C (73 °F) and having a boiling point at or above 37.8 °C (100 °F) or having a flash point between 22.8 and 37.8 °C (73 and 100 °F). (e.g. gasoline, acetone) | |
| REACT | 1 | Normally stable, but can become unstable at elevated temperatures and pressures (e.g. propene) | |
| SPEC. HAZ. |
Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Do not breathe vapors, aerosols. Avoid substance contact. Ensure adequate ventilation. Keep away from heat and sources of ignition.
Evacuate the danger area, observe emergency procedures, consult an expert. For personal protection see section 8.
Environmental precautions
Do not let product enter drains. Risk of explosion.
Methods and materials for containment and cleaning up
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up carefully with liquid-absorbent material (e.g.
Chemizorb?). Dispose of properly. Clean up affected area.
Reference to other sections
For disposal see section 13.
Precautions for safe handling
Advice on safe handling
Work under hood. Do not inhale substance/mixture. Avoid generation of vapours/aerosols.
Advice on protection against fire and explosion
Keep away from open flames, hot surfaces and sources of ignition.Take precautionary measures against static discharge.
Hygiene measures
Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.
For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
Storage conditions
Keep container tightly closed in a dry and well-ventilated place. Keep away from heat and sources of ignition.
Test for peroxide formation periodically and before distillation.
Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
control parameter
Hazard composition and occupational exposure limitsExposure controls
Personal protective equipmentUse equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses
This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de).
Splash contact Material: butyl-rubber
Minimum layer thickness: 0,7 mm Break through time: 10 min
Material tested:Butoject? (KCL 898)
Flame retardant antistatic protective clothing.
Recommended Filter type: Filter A (acc. to DIN 3181) for vapours of organic compounds
The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer.
These measures have to be properly documented.
Do not let product enter drains. Risk of explosion.
Information on basic physicochemical properties
- Appearancecolorless liquid, clear
- Odourether-like
- Odour ThresholdNo data available
- pHca.7
- Melting point/freezing pointMelting point: -108,44 °C at 1.013,25 hPa - (ECHA)
- Initial boiling point and boiling range65 °C at 1.013 hPa
- Flash point-21,2 °C - closed cup - DIN 51755 Part 1
- Evaporation rateNo data available
- Flammability (solid, gas)No data available
- Upper/lower flammability or explosive limits Upper explosion limit: 11,8 %(V) - (THF) Lower explosion limit: 1,8 %(V) - (THF)
- Vapour pressure 170 hPa at 20,0 °C
- Vapour density ca.2,5 at 25 °C - (Air = 1.0)
- Relative density0.89
- Water solubilitymiscible
- Partition coefficient: n-octanol/waterlog Pow: 0,45 at 25 °C - Bioaccumulation is not expected.
- Autoignition temperature215 °C at 1.013 hPa - DIN 51794
- Decomposition temperatureNo data available
- ViscosityViscosity, kinematic: 0,518 mm2/s at 25 °C Viscosity, dynamic: 0,456 mPa.s at 25 °C0,359 mPa.s at 50 °C
- Explosive propertiesNo data available
- Oxidizing propertiesNo data available
- Henry's Law Constant1.54 (static headspace-GC, Welke et al., 1998)
- λmaxλ: 245 nm Amax: ≤0.26
λ: 275 nm Amax: ≤0.046
λ: 315 μm Amax: ≤0.0044
Other safety information
Surface tension 26,4 mN/m at 25 °C
Relative vapor density
ca.2,5 at 25 °C - (Air = 1.0)
Reactivity
Formation of peroxides possible.
Vapors may form explosive mixture with air.
Chemical stability
The product is chemically stable under standard ambient conditions (room temperature) . Stable under recommended storage conditions.
Possibility of hazardous reactions
No data available
Conditions to avoid
Moisture.
Incompatible materials
rubber, various plastics, Tin
Hazardous decomposition products
Peroxides
In the event of fire: see section 5
Information on toxicological effects
Acute toxicitySymptoms: Irritation of mucous membranes
LC50 Inhalation - Rat - male and female - 4 h - > 16,9 mg/l (US-EPA)
Symptoms: mucosal irritations, Cough, Shortness of breath, Possible damages:, damage of respiratory tract
LD50 Dermal - Rat - male and female - > 2.000 mg/kg (OECD Test Guideline 402)
Result: No skin irritation - 72 h (Draize Test)
Repeated or prolonged exposure may cause skin irritation and dermatitis, due to degreasing properties of the product.
(Regulation (EC) No 1272/2008, Annex VI)
Test Type: In vitro mammalian cell gene mutation test Test system: Chinese hamster ovary cells
Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 476
Result: negative
Test Type: Ames test
Test system: Salmonella typhimurium
Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 471
Result: negative
No aspiration toxicity classification
LC50 inhal (rat) 21,000 ppm (3 h)
PEL (OSHA) 200 ppm (590 mg/m3)
TLV-TWA (ACGIH) 200 ppm (590 mg/m3)
STEL (ACGIH) 250 ppm (737 mg/m3)
Toxicity
2.160 mg/l - 96 h
(OECD Test Guideline 203)
static test EC50 - Daphnia magna (Water flea) - 3.485 mg/l - 48 h (OECD Test Guideline 202)
Persistence and degradability
Biodegradability aerobic Biochemical oxygen demand - Exposure time 28 d Result: 39 % - Not readily biodegradable.
(OECD Test Guideline 301D)
Bioaccumulative potential
No bioaccumulation is to be expected (log Pow <= 4).
Mobility in soil
No data available
Results of PBT and vPvB assessment
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
Other adverse effects
No data available
Waste treatment methods
Product
See www.retrologistik.com for processes regarding the return of chemicals and
containers, or contact us there if you have further questions.
IncompatibilitiesForms thermally explosive peroxides in air on standing (in absence of inhibitors). Peroxides can be detonated by heating, friction, or impact. Reacts violently with strong oxidizers, strong bases and some metal halides. Attacks some forms of plastics, rubber and coatings.
Waste DisposalConsult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Concentrated waste containing peroxides-perforation of a container of the waste from a safe distance followed by open burning.
UN number
UN proper shipping name
Transport hazard class(es)
ADR/RID: 3 IMDG: 3 IATA: 3
Packaging group
ADR/RID: II IMDG: II IATA: II
Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
Special precautions for user
No data available
Safety, health and environmental regulations/legislation specific for the substance or mixture
Regulations on the Safety Management of Hazardous ChemicalsAbbreviations 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
【1】CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
【2】ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
【3】ECHA - European Chemicals Agency, website: https://echa.europa.eu/
【4】eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
【5】ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
【6】Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
【7】HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
【8】IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
【9】IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
【10】Sigma-Aldrich, website: https://www.sigmaaldrich.com/
Other Information
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.