Description Chemical Properties Preparation Uses Reactions
ChemicalBook > CAS DataBase List > Trifluoromethanesulfonic acid

Trifluoromethanesulfonic acid

Description Chemical Properties Preparation Uses Reactions
Product Name
Trifluoromethanesulfonic acid
CAS No.
1493-13-6
Chemical Name
Trifluoromethanesulfonic acid
Synonyms
TFOH;TRIFLIC ACID;Triflate;TFMSA;trifluoromethanesulfonic;triflic;Trifluoromethanesulf;TRIFLUOROMETHANESULPHONIC ACID;PFC-MS;TRIFLUOROMETHYLSULFONIC ACID
CBNumber
CB7247316
Molecular Formula
CHF3O3S
Formula Weight
150.08
MOL File
1493-13-6.mol
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Trifluoromethanesulfonic acid Property

Melting point:
-40 °C
Boiling point:
162 °C (lit.)
Density 
1.696 g/mL at 25 °C (lit.)
vapor density 
5.2 (vs air)
vapor pressure 
8 mm Hg ( 25 °C)
refractive index 
n20/D 1.327(lit.)
RTECS 
PB2771000
Flash point:
None
storage temp. 
Store below +30°C.
solubility 
Miscible in H<sub>2</sub>O
pka
-14(at 25℃)
form 
Fuming Liquid
Specific Gravity
1.696
color 
slightly brown
PH
<1 (H2O)
Water Solubility 
SOLUBLE
Sensitive 
Hygroscopic
Merck 
14,9676
BRN 
1812100
Stability:
Stable. Incompatible with acids, alkalis, metals.
InChIKey
ITMCEJHCFYSIIV-UHFFFAOYSA-N
LogP
0.3 at 25℃
CAS DataBase Reference
1493-13-6(CAS DataBase Reference)
NIST Chemistry Reference
CF3SO3H(1493-13-6)
EPA Substance Registry System
Methanesulfonic acid, trifluoro- (1493-13-6)
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Safety

Hazard Codes 
C
Risk Statements 
21/22-35-10
Safety Statements 
26-36/37/39-45
RIDADR 
UN 3265 8/PG 2
WGK Germany 
2
F 
3-10
Hazard Note 
Corrosive/Hygroscopic
TSCA 
Yes
HazardClass 
8
PackingGroup 
II
HS Code 
29049020
Toxicity
LD50 orally in Rabbit: 1605 mg/kg LD50 dermal Rat > 2000 mg/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H290May be corrosive to metals

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

H335May cause respiratory irritation

Precautionary statements

P234Keep only in original container.

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.21166
Product name
Trifluoromethanesulfonic acid
Purity
for synthesis
Packaging
25mL
Price
$140
Updated
2024/03/01
Sigma-Aldrich
Product number
8.21166
Product name
Trifluoromethanesulfonic acid
Purity
for synthesis
Packaging
100mL
Price
$300
Updated
2024/03/01
Sigma-Aldrich
Product number
8.21166
Product name
Trifluoromethanesulfonic acid
Purity
for synthesis
Packaging
1L
Price
$741
Updated
2024/03/01
Sigma-Aldrich
Product number
158534
Product name
Trifluoromethanesulfonic acid
Purity
reagent grade, 98%
Packaging
10g
Price
$39.2
Updated
2024/03/01
Sigma-Aldrich
Product number
158534
Product name
Trifluoromethanesulfonic acid
Purity
reagent grade, 98%
Packaging
50g
Price
$114
Updated
2024/03/01
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Trifluoromethanesulfonic acid Chemical Properties,Usage,Production

Description

Trifluoromethanesulfonic acid, also known as triflic acid, TFMS, TFSA, HOTf or TfOH, is a sulfonic acid with the chemical formula CF3SO3H. It is often regarded as one of the strongest acids, and is one of a number of so-called "superacids". it is used in the manufacture of pharmaceuticals, agricultural chemicals and polymers. The anhydrous form is widely used in fine chemical synthesis. It is non-oxidizing, has a high thermal stability, and is resistance to both oxidation and reduction, which makes it one of the more useful compounds in the super acids class. In the pharma industry, it is used to make a number of drug classes, including nucleosides, antibiotics, steroids, proteins and glycosides. Triflic anhydride reacts readily with water and has an unfavorable toxicity profile.

Chemical Properties

Trifluoromethanesulfonic acid is a hygroscopic, colorless liquid at room temperature. It is soluble in polar solvents such as dimethylformamide (DMF), dimethyl sulfoxide (DMSO), acetonitrile, and dimethyl sulfone. Addition of triflic acid to polar solvents can be dangerously exothermic.
Trifluoromethanesulfonic acid is widely used especially as a catalyst and a precursor in organic chemistry. With an Ka = 8. 0 1014 (pKa ~ -15) mol/kg, HOTf qualifies as a superacid. Triflic acid owes many of its useful properties to its great thermal and chemical stability. Both the acid and its conjugate base CF3SO3-, known as triflate, resist oxidation/reduction reactions, whereas many strong acids are oxidizing, e. g. HClO4 and HNO3. The triflate anion is immune to attack by even strong nucleophiles. Because of its resistance to oxidation and reduction, triflic acid is a very useful and versatile reagent. Further recommending its use, triflic acid does not sulfonate substrates, which can be a problem with sulfuric acid, fluorosulfuric acid, and chlorosulfonic acid. Below is a prototypical sulfonation, which HOTf does not undergo: C6H6 + H2SO4 → C6H5(SO3H) + H2O.

Preparation

Yellow-brown liquid. The boiling point is 167~170 ℃.The refractive index is 1.331.The relative density is 1.708.It is the strongest organic acids, easily soluble in water.Use carbon disulfide as raw material, with the reaction of iodine pentafluoride to produce trifluoromethyl disulfide.(CF3S) 2Hg was obtained when reacting with mercury; Then through oxidation of hydrogen oxide, trifluoromethanesulfonic acid is acquired.

Uses

  • It is used for organic synthesis, widely used in pharmaceutical and chemical industries, such as nucleosides, antibiotics, steroids, protein, sugar, vitamins synthesis, silicone rubber modification.
  • Isomerization and alkylation of the catalyst, the preparation of 2, 3-dihydro-2-indanone, tetralone, glycosides in the removal of glycoproteins.

Reactions

Trifluoromethanesulfonic acid acts as a catalyst for esterification reactions and an acidic titrant in nonaqueous acid-base titration. It is useful in protonations due to the presence of conjugate base triflate is non nucleophilic. It serves as a deglycosylation agent for glycoproteins. In addition, it is a precursor and a catalyst in organic chemistry. It reacts with acyl halides to prepare mixed triflate anhydrides, which are strong acylating agents used in Friedel-Crafts reactions. It acts as a key starting material for the preparation of ethers and olefins by reacting with alcohols as well as to prepare trifluoromethanesulfonic anhydride by dehydration reaction.

Catalyst used in the production of cocoa butter substitute from palm oil. This is a very similar reaction to what would be done if one wanted to create polymers using triflic acid in the synthesis. Other Friedel-Crafts type reactions using triflic acid include cracking of alkanes and alkylation of alkenes which are very important to the petroleum industry. These triflic acid derivative catalysts are very effective in isomerizing straight chain or slightly branched hydrocarbons that can increase the octane rating of a particular petroleum based fuel.

Uses

Trifluoromethanesulfonic acid acts as a catalyst in Friedel-Crafts type acylation, alkylation and polymerization reactions; as a solvent for ESR; as a nonaqueous strong acid titrant; with trifluoroacetic acid, q.v., in solid-phase peptide synthesis. One of the strongest available monoprotic acids.

Definition

ChEBI: Trifluoromethanesulfonic acid is a one-carbon compound that is methanesulfonic acid in which the hydrogens attached to the methyl carbon have been replaced by fluorines. It is a one-carbon compound and a perfluoroalkanesulfonic acid. It is a conjugate acid of a triflate.

General Description

Trifluoromethanesulfonic acid is a strong organic acid. It can be prepared by reacting bis(trifluoromethylthio)mercury with H2O2. On mixing with HNO3, it affords a nitrating reagent (a nitronium salt). This reagent is useful for the nitration of aromatic compounds. Its dissociation in various organic solvents has been studied.

Safety Profile

A corrosive irritant to the skin, eyes, and mucous membranes. A strong acid. Violent reaction with acyl chlorides or aromatic hydrocarbons evolves toxic hydrogen chloride gas. When heated to decomposition it emits toxic fumes of Fand SOx. See also FLUORIDES.

Trifluoromethanesulfonic acid Preparation Products And Raw materials

Raw materials

Preparation Products

4-NITROQUINOLINE N-OXIDE 2,6-Di-tert-butyl-4-methylpyridine DIBUTYLBORON TRIFLUOROMETHANESULFONATE 4-Bromo-7-azaindole Trifluoromethanesulfonic acid tert-butyldimethylsilyl ester Trifluoromethanesulfonic anhydride Glycerides, C10-18 Lanthanum trifluoromethanesulfonate 2,2-BIS(4-CARBOXYPHENYL)HEXAFLUOROPROPANE Zinc trifluoromethanesulfonate COPPER(II) TRIFLUOROMETHANESULFONATE Methyl trifluoromethanesulfonate
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View Lastest Price from Trifluoromethanesulfonic acid manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Trifluoromethanesulfonic acid 1493-13-6
Price
US $50.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000kg/week
Release date
2024-05-20
Hebei Dangtong Import and export Co LTD
Product
Trifluoromethanesulfonic acid 1493-13-6
Price
US $58.00/kg
Min. Order
1000kg
Purity
99.99%
Supply Ability
100Tons
Release date
2023-03-17
Hebei Weibang Biotechnology Co., Ltd
Product
Trifluoromethanesulfonic acid 1493-13-6
Price
US $9.90/KG
Min. Order
1KG
Purity
99%
Supply Ability
5tons
Release date
2024-12-03

1493-13-6, Trifluoromethanesulfonic acidRelated Search:

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