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70-55-3

70-55-3 Structure

70-55-3 Structure
IdentificationMore
[Name]

p-Toluenesulfonamide
[CAS]

70-55-3
[Synonyms]

4-METHYLBENZENESULFONAMIDE
4-TOLUENESULFONAMIDE
4-TOLUENESULFONIC ACID AMIDE
PASAM
P-TOLUENESULFONAMIDE
P-TOLUENESULFONYLAMIDE
P-TOLUENESULPHONAMIDE
PTSA
TOLUENE-4-SULFONAMIDE
TOLUENE-4-SULPHONAMIDE
TOLUENE SULFONAMIDE
4-methyl-benzenesulfonamid
4-Toluenesulfanamide
Benzenesulfonamide, 4-methyl-
Benzenesulfonamide,4-methyl-
para-toluenesulfamine
para-Toluenesulfonamide
p-Methylbenzenesulfonamide
p-Toluenesulfamide
p-Toluenesulfanamide
[EINECS(EC#)]

200-741-1
[Molecular Formula]

C7H9NO2S
[MDL Number]

MFCD00011692
[Molecular Weight]

171.22
[MOL File]

70-55-3.mol
Chemical PropertiesBack Directory
[Appearance]

white crystalline powder
[Appearance]

White leaflets. Soluble in alcohol; very slightly soluble inwater.Combustible.
[mp ]

134-137 °C(lit.)
[bp ]

221 °C (10 mmHg)
[Fp ]

202 °C
[Water Solubility ]

0.32 g/100 mL (25 º C)
[BRN ]

472689
[CAS DataBase Reference]

70-55-3(CAS DataBase Reference)
[NIST Chemistry Reference]

4-Methylbenzenesulfonamide(70-55-3)
[EPA Substance Registry System]

70-55-3(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi,Xn
[Risk Statements ]

R36:Irritating to the eyes.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
[WGK Germany ]

1
[RTECS ]

XT5075000
[PackingGroup ]

III
[HS Code ]

29350090
[Hazardous Substances Data]

70-55-3(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Ammonia-->Tosyl chloride-->Carbon-->Terephthaloyl chloride
[Preparation Products]

3-ISOPROPENYL-ALPHA,ALPHA-DIMETHYLBENZYL ISOCYANATE-->isoindoline-5-carboxylic acid-->METHYL ISOINDOLINE-5-CARBOXYLATE-->4-bromoisoindoline-->5-BROMOISOINDOLINE-->Ketoconazole-->DIMINAZENE ACETURATE-->Acid Red 92-->NORMEPERIDINE-->Gliclazide-->4-Nitrobenzonitrile-->Isobutylamine-->Probenecid-->Carzenide-->5-Methyl-1H-benzotriazole-->Disperse Red 86-->DICHLORAMINE T-->4-Methylphenylsulfonylurea
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

4-Methylbenzenesulfonamide(70-55-3).msds
Questions And AnswerBack Directory
[Role and purpose]

P-toluene sulfonamide is a kind of excellent solid plasticizer used for thermoset plastic. It is suitable for being applied to phenolic resin, melamine resin, urea-formaldehyde resins and polyamide resins. Combination with a small amount can improve workability and make the solidification be uniform, and thus endowing the products with a good gloss. However, P-toluene sulfonamide has no softening effect as the liquid plasticizer, and is incompatible with polyvinyl chloride and vinyl chloride copolymer and is partially compatible with cellulose acetate, cellulose acetate butyrate and cellulose nitrate.
p-Toluene sulfonamide has a low toxicity. It has been approved by the US Food and Drug Administration for being applied into adhesives as food packaging materials.
p-Toluene sulfonamide is briefly called TSH and is commonly used for nickel plating. It can improve the coating structure by the adsorption on the electrode so that it has some degree of surface glossing effect; it is generally not strictly limited for the added amount of brighteners lax; moreover it also has very light effects on the coating characteristics. However, it can only give semi-bright coatings, and the surface gloss is related to the polishing quality of the matrix before plating.
Currently, the brightener agents of nickel plating used is mostly some kinds of organic compounds. And the used amount of these organic compound, although are very little, but with a significant effect. In addition to brightening the coating, it can also largely determine the mechanical properties and chemical properties of the coating. But it must be realized that, since the bright nickel plating solution has been added to the organic brightener, it naturally makes the nickel plating layer contain a relative big amount of organic sulfur and other impurities, thus inevitably enlarging the internal stress, so its mechanical properties is a bitter lower than the conventional nickel-plate, and is prone to crack layer when the plating gets stress; its antirust ability is also worse than the dark nickel. Thus, a single layer of bright nickel is unable to improve the corrosion resistance and mechanical properties of the nickel layer; it must need to form a bi-layer and multilayer nickel or chromium to form a multilayer combination of decorative protective coatings.
When toluene sulfonamide is heated to 105 °C, it will be decomposed and there will be nitrogen released (gas evolution 130 mL/g); p-toluene sulfonamide foaming agents can give a fine foaming with small product shrinkage. It also has a high tear strength and good stability. Thereby, it has a wide range of applications.
The above information is edited by the chemicalbook of Dai xiongfeng.
[Uses]

1. It is used in the manufacture of dyes, synthetic resins, paints, disinfectants and wood processing brightener.
2. It is used for the manufacture of plasticizers, disinfectants; it can also be used for the production of synthetic resins, paints, and fluorescent dyes.
3. It can be used as primary brightener in the bright nickel plating. It is sued for bright nickel plating for multilayer to obtain uniform bright coating. It has a commonly used amount of 0.2~0.3 g/L.
4. It can be used as plasticizers, also used for synthesis of organics, resins and saccharin.
[Production methods]

It is obtained by the reaction between toluenesulfonyl chloride and ammonia.
First, add part of HN3 water into the reaction pot, stirring for adding p-toluenesulfonyl chloride with the temperature rising naturally to above 50 °C; after the temperature has dropped, add the remaining ammonia and have reaction for 0.5 h at 85~90 °C. Stop the reaction when the pH reaches 8 to 9. Cool to 20 °C, filter, and wash the filter cake with water to obtain the crude. Then further go through bleaching via activated carbon, alkali dissolution, acid precipitation, rejection filter, drying to get products.
Spectrum DetailBack Directory
[Spectrum Detail]

p-Toluenesulfonamide(70-55-3)13CNMR
p-Toluenesulfonamide(70-55-3)1HNMR
p-Toluenesulfonamide(70-55-3)IR1
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

p-Toluenesulfonamide, 99+%(70-55-3)
[Alfa Aesar]

p-Toluenesulfonamide, 98+%(70-55-3)
[Sigma Aldrich]

70-55-3(sigmaaldrich)
[TCI AMERICA]

p-Toluenesulfonamide,>98.0%(LC)(N)(70-55-3)
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