Parachlorobenzotrifluoride

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Parachlorobenzotrifluoride
Parachlorobenzotrifluoride.svg
Names
Preferred IUPAC name
1-Chloro-4-(trifluoromethyl)benzene
Identifiers
3D model (JSmol)
Abbreviations PCBTF
510203
ChemSpider
ECHA InfoCard 100.002.438 Edit this at Wikidata
EC Number
  • 202-681-1202-681-1
MeSH C037723
UNII
UN number 2234
  • InChI=1S/C7H4ClF3/c8-6-3-1-5(2-4-6)7(9,10)11/h1-4H ☒N
    Key: QULYNCCPRWKEMF-UHFFFAOYSA-N ☒N
  • InChI=1/C7H4ClF3/c8-6-3-1-5(2-4-6)7(9,10)11/h1-4H
    Key: QULYNCCPRWKEMF-UHFFFAOYAI
  • C1=CC(=CC=C1C(F)(F)F)Cl
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
0.0347
Hazards
GHS labelling:
GHS02: FlammableGHS07: Exclamation markGHS09: Environmental hazard
Signal word
 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)
1
2
1
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).
☒N  (what is checkY☒N ?)
Infobox references

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[]

  1. ^ see MSDS for MINWAX product numbers 13025(5%) and 71029(12%)[full citation needed]
  2. ^ a b MSDS provided by Islechem
  3. ^ "EPA Exempt Volatile Organic Compound: Parachlorobenzotrifluoride" (PDF). American Coatings Association. 2018-01-30. Retrieved 2019-03-20.
  4. ^ "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.
  5. ^ 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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