Parachlorobenzotrifluoride

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][3] The substance in technical quality is considered to have negligible VOCs and is increasingly used as a xylene replacement in cleaners, thinners, and other aromatic hydrocarbon blends. It thus has VOC Exempt status from the EPA Environmental Protection Agency.[4]

Parachlorobenzotrifluoride
Names
IUPAC name
1-Chloro-4-(trifluoromethyl)benzene
Identifiers
3D model (JSmol)
Abbreviations PCBTF
510203
ChemSpider
ECHA InfoCard 100.002.438
EC Number
  • 202-681-1202-681-1
MeSH C037723
UNII
UN number 2234
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 pictograms
GHS Signal word Warning
GHS hazard statements
 H226, H315, H319, H335, H411
P210, P233, P240, P241, P242, P243, P261, P264, P271, P273, P280, P302+352, P303+361+353, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P370+378, P391, P403+233, P403+235, P405
NFPA 704 (fire diamond)
Flammability code 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuelHealth code 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineReactivity code 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
2
1
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).
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Infobox references

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. 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
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References
  1. see MSDS for MINWAX product numbers 13025(5%) and 71029(12%)
  2. MSDS provided by Islechem
  3. http://www.miamichemical.com/featured-products/parachlorobenzotrifluoride-pcbtf.html
  4. "Update: U.S. EPA Exempt Volatile Organic Compounds". American Coatings Association. 2018-01-30. Retrieved 2019-03-20.
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