Parachlorobenzotrifluoride
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Names | |
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Preferred IUPAC name
1-Chloro-4-(trifluoromethyl)benzene | |
Identifiers | |
3D model (JSmol)
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Abbreviations | PCBTF |
510203 | |
ChemSpider | |
EC Number |
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MeSH | C037723 |
PubChem CID
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UNII | |
UN number | 2234 |
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Properties | |
C7H4ClF3 | |
Molar mass | 180.55 g·mol−1 |
Appearance | Colorless liquid |
Melting point | −36 °C (−33 °F; 237 K) |
Boiling point | 139 °C (282 °F; 412 K) |
0 | |
Vapor pressure | 7.9 |
Henry's law
constant (kH) |
0.0347 |
Hazards | |
GHS labelling: | |
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Warning | |
H226, H315, H319, H335, H411 | |
P210, P233, P240, P241, P242, P243, P261, P264, P271, P273, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P391, P403+P233, P403+P235, P405, P501 | |
NFPA 704 (fire diamond) | |
Flash point | 43 °C (109 °F; 316 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Parachlorobenzotrifluoride is an organic chemical compound with the molecular formula C7H4ClF3. It is frequently abbreviated PCBTF. Parachlorobenzotrifluoride is a colorless liquid with a distinct aromatic odor. It is used as an ink solvent in the printing industry. PCBTF is used as a component (5-12%) of low volatile organic compound (VOC) compliant polyurethane finishes.[1] It is also sold under the brand name Oxsol 100.[2] The substance is increasingly used as a xylene replacement in cleaners, thinners, and other aromatic hydrocarbon blends. It currently has VOC Exempt status from the EPA Environmental Protection Agency;[3] however, California's Office of Environmental Health Hazard Assessment (OEHHA) has adopted inhalation risk factors for PCBTF as of June 2019, which could have implications for its ongoing VOC Exempt status.[4][5]
Uses
Parachlorobenzotrifluoride has a high capacity for dissolving many inks used by the printing industry. In most cases, up to 22 grams of ink can be dissolved in 20 grams of PCBTF.[citation needed] An added benefit is that parachlorobenzotrifluoride dissolves most inks faster than toluene.
Health effects
- Points of entry: eyes, ingestion, inhalation, skin.
- Target organs: central nervous system, kidneys, liver.
- Irritancy: eyes, respiratory tract, skin[2]
References
- ^ see MSDS for MINWAX product numbers 13025(5%) and 71029(12%)[full citation needed]
- ^ a b MSDS provided by Islechem
- ^ "EPA Exempt Volatile Organic Compound: Parachlorobenzotrifluoride" (PDF). American Coatings Association. 2018-01-30. Retrieved 2019-03-20.
{{cite web}}
: CS1 maint: url-status (link) - ^ "Chemical Listed Effective June 28, 2019 as Known to the State Of California To Cause Cancer: P-Chloro-a,a,a-Trifluorotoluene (Para-Chlorobenzotrifluoride, PCBTF)". oehha.ca.gov. Retrieved 2021-08-14.
{{cite web}}
: CS1 maint: url-status (link) - ^ p-Chloro-α,α,α-trifluorotoluene (p-Chlorobenzotrifluoride, PCBTF) - Cancer Inhalation Unit Risk Factor Scientific Review Panel Draft - January 2020 - California Office of Environmental Health Hazard Assessment
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- Halogenated solvents
- Chloroarenes
- Trifluoromethyl compounds