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The physical and chemical properties of toluene sulfonic acid
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Keith White
The physical and chemical properties of toluene sulfonic acid
Title: p-Toluenesulfonic Acid CAS Registry Number: 104-15-4 CAS Name: 4-Methylbenzenesulfonic acid Additional Names: tosic acid Molecular Formula: C7H8O3S Molecular Weight: 172.20 Percent Composition: C 48.82%, H 4.68%, O 27.87%, S 18.62% Line Formula: CH3C6SO3H Literator References: Prepd by SULFONENE WITH 96-100%; 75° the compn of the reaction product is 75% para-, 19% ortho- and 6% meta-toluenesulfonic acid. Convenient lab prepn: L. F. Fieser, Experiments in Organic Chemistry (Boston, 3rd ed., 1955) p 144. The separation of toluene from petroleum fractions can be accomplished by sulfonation with H2SO4 at 60°. Properties: Monoclinic leaflets or prisms. Also reported as crystallizing with 1H2O or 4H2O. When anhydrous, mp 106-107°. Metastable form, mp 38 °. BP20 140 °. BP0.1 185-187 °. Freely Sol in Water, about 67 g/100 ml. Sol in alc and ether. Melting point: mp 106-107 °; mp 38 ° Boiling point: BP20 140°; BP0.1 185-187 °
Derivative Type: Sodium Salt Molecular Formula: C7H7NAO3S Molecular Weight: 194.18 Percent Composition: C 43.30%, H 3.63%, NA 11.8.8.8.8.8.8.8.8.8.8%, O 24.72%, s 16.51% Properties: Orthorhombic Plates, very solid in Water. Caution: Highly IRritating to Skin, Mucous Membraness.ORAL ANTIDIABETIC DRUGS.
Title: p-Toluenesulfonic Acid CAS Registry Number: 104-15-4 CAS Name: 4-Methylbenzenesulfonic acid Additional Names: tosic acid Molecular Formula: C7H8O3S Molecular Weight: 172.20 Percent Composition: C 48.82%, H 4.68%, O 27.87%, S 18.62% Line Formula: CH3C6SO3H Literator References: Prepd by SULFONENE WITH 96-100%; 75° the compn of the reaction product is 75% para-, 19% ortho- and 6% meta-toluenesulfonic acid. Convenient lab prepn: L. F. Fieser, Experiments in Organic Chemistry (Boston, 3rd ed., 1955) p 144. The separation of toluene from petroleum fractions can be accomplished by sulfonation with H2SO4 at 60°. Properties: Monoclinic leaflets or prisms. Also reported as crystallizing with 1H2O or 4H2O. When anhydrous, mp 106-107°. Metastable form, mp 38 °. BP20 140 °. BP0.1 185-187 °. Freely Sol in Water, about 67 g/100 ml. Sol in alc and ether. Melting point: mp 106-107 °; mp 38 ° Boiling point: BP20 140°; BP0.1 185-187 °
Derivative Type: Sodium Salt Molecular Formula: C7H7NAO3S Molecular Weight: 194.18 Percent Composition: C 43.30%, H 3.63%, NA 11.8.8.8.8.8.8.8.8.8.8%, O 24.72%, s 16.51% Properties: Orthorhombic Plates, very solid in Water. Caution: Highly IRritating to Skin, Mucous Membraness.ORAL ANTIDIABETIC DRUGS.
CAS Registry Number: 104-15-4
CAS Name: 4-Methylbenzenesulfonic acid
Additional Names: tosic acid
Molecular Formula: C7H8O3S
Molecular Weight: 172.20
Percent Composition: C 48.82%, H 4.68%, O 27.87%, S 18.62%
Line Formula: CH3C6SO3H
Literator References: Prepd by SULFONENE WITH 96-100%; 75° the compn of the reaction product is 75% para-, 19% ortho- and 6% meta-toluenesulfonic acid. Convenient lab prepn: L. F. Fieser, Experiments in Organic Chemistry (Boston, 3rd ed., 1955) p 144. The separation of toluene from petroleum fractions can be accomplished by sulfonation with H2SO4 at 60°.
Properties: Monoclinic leaflets or prisms. Also reported as crystallizing with 1H2O or 4H2O. When anhydrous, mp 106-107°. Metastable form, mp 38 °. BP20 140 °. BP0.1 185-187 °. Freely Sol in Water, about 67 g/100 ml. Sol in alc and ether.
Melting point: mp 106-107 °; mp 38 °
Boiling point: BP20 140°; BP0.1 185-187 °
Derivative Type: Sodium Salt
Molecular Formula: C7H7NAO3S
Molecular Weight: 194.18
Percent Composition: C 43.30%, H 3.63%, NA 11.8.8.8.8.8.8.8.8.8.8%, O 24.72%, s 16.51%
Properties: Orthorhombic Plates, very solid in Water.
Caution: Highly IRritating to Skin, Mucous Membraness.ORAL ANTIDIABETIC DRUGS.
CAS Registry Number: 104-15-4
CAS Name: 4-Methylbenzenesulfonic acid
Additional Names: tosic acid
Molecular Formula: C7H8O3S
Molecular Weight: 172.20
Percent Composition: C 48.82%, H 4.68%, O 27.87%, S 18.62%
Line Formula: CH3C6SO3H
Literator References: Prepd by SULFONENE WITH 96-100%; 75° the compn of the reaction product is 75% para-, 19% ortho- and 6% meta-toluenesulfonic acid. Convenient lab prepn: L. F. Fieser, Experiments in Organic Chemistry (Boston, 3rd ed., 1955) p 144. The separation of toluene from petroleum fractions can be accomplished by sulfonation with H2SO4 at 60°.
Properties: Monoclinic leaflets or prisms. Also reported as crystallizing with 1H2O or 4H2O. When anhydrous, mp 106-107°. Metastable form, mp 38 °. BP20 140 °. BP0.1 185-187 °. Freely Sol in Water, about 67 g/100 ml. Sol in alc and ether.
Melting point: mp 106-107 °; mp 38 °
Boiling point: BP20 140°; BP0.1 185-187 °
Derivative Type: Sodium Salt
Molecular Formula: C7H7NAO3S
Molecular Weight: 194.18
Percent Composition: C 43.30%, H 3.63%, NA 11.8.8.8.8.8.8.8.8.8.8%, O 24.72%, s 16.51%
Properties: Orthorhombic Plates, very solid in Water.
Caution: Highly IRritating to Skin, Mucous Membraness.ORAL ANTIDIABETIC DRUGS.
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