TRIAZONE RESINS BOOST WASH-AND-WEAR COTTONS Key to the booming popularity of easy-care cottons, especially white fabrics, is the family of perhydrotriazone resins, called triazones for short. Earlier types of resins worked fairly well on colored cottons, but they retained chlorine from the bleaches commonly used on whites. When these fabrics were ironed, HC1 was released, causing first yellowing and then fibre breakdown. The triazones, which are cyclic ureas, possess a tertiary nitrogen atom (-NH) in the ring. Aside from the fact that these resins retain far less chlorine, the basicity of the tertiary nitrogen buffers any acid released by the heat of ironing. The resistance they provide to chlorine damage has gained the triazones wide usage as wash-and-wear finishes on both white and colored goods.
THIOPHENE—BRIGHT FUTURE FOR YOUTHFUL COMPOUND Thiophene's unusual combination of cyclic structure, sulfur atom and high reactivity makes it an exceptionally fertile source of new product ideas. Equally important, thiophene is a relative youngster in the industrial chemical family. Its first availability on a continuous, ample basis dates back just 8 years ! Thiophene was originally spotted in coal-tar benzene around 1883, but separating it was a job of Herculean proportions, and it remained nothing more than a by-product. Later attempts to synthesize it from ethyl sulfide, and by dry distillation of sodium succinate and phosphorous sulfide (P4S7), still didn't get it out of the laboratory curiosity class. Not until 1954 did thiophene emerge from obscurity to become a raw material of commercial interest. The key was the discovery that it could be made conveniently by heating a mixture of butane and sulfur for a split second at about 1100°F.
Since that time, Pennsalt has continuously made thiophene available in commercial quantities. Because it may be produced from such abundant raw materials as butane and sulfur, Pennsalt thiophene is inherently economical. Its price has been stable. This adds up to an inviting situation—increased usage and production volume of thiophene will result in a most attractive price to its users. If you're interested in agricultural or textile chemicals, plastics, drugs and pharmaceuticals, petroleum treating compounds, lube additives, corrosion i n h i b i t o r s , chelating agents, ion exchange resins, or, for that matter, any product derived from a cyclic structure, you should have our new thiophene bulletin. This 16-page volume not only highlights thiophene's chemistry and uses, but provides well over 200 references for follow-up on specific reactions and products. Ask for Bulletin S-187.
A Pennsalt amine, specifically monoethyl, lends its abilities as an intermediate in manufacturing these resins. If you're triazone-minded . . . or still broader, amine-minded . . . Pennsalt offers you the widest line of lower alkyl amines available today. It includes methyl, ethyl, propyl, butyl and amyl. . . primaries, secondaries and tertiaries... and a large selection of alkyl alkanol amines as well. A note from you will bring a complete listing, with condensed technical and shipping data^ and we'll be glad to lend technical assistance in selecting the amines that best fit your needs.
PENNSALT DEVELOPMENT CHEMICALS METHANE SULFONIC ACID CH3SO3H
Mol.
Wt. 96.09
Specifications
PENNSALT SERVICE HELPS YOU GAIN ECONOMIES OF HF One of our staunch beliefs is that the CPI man doesn't breathe who wouldn't leap at the chance to slice a sizeable chunk off his costs. That's one of the reasons we periodically reiterate a rather simple . . . and demonstrable . . . statement: the handling of hydrofluoric acid presents no serious limitation to its vast potential. If you're now paying high prices for bifluorides, you'll find that H F is a more direct and economical way to make fluorides and double fluorides . · . as well as fluoborates, fluophosphates, many other inorganic salts, and fluoro-organics. And H F is an excellent solubilizer for a wide range of organic and inorganic compounds . . . provides a medium for reactions that are otherwise difficult or impossible.
C o l o r . a m b e r (APHA 1600 max.) j
Sp. Gr. @ 2 0 / 2 0 ° C
\
Methane Sulfonic
We could rave on about HF's other j abilities . . . as a catalyst, for example. The main point, though, is ! that you can use it, with a degree of | safety equal to that of the many \ j other active chemicals in common ; I use today. Of course, you have to know how to handle H F . That's 0 where we come in. Pennsalt has been producing, ship- [ ping and handling H F . . . and help- ; ing our customers use i t . . . for over *"-; 40 years. This experience is avail- ' able to you, along with specific aids, including manuals and wall charts, l· to help you maintain proper safety ;C measures. Our H F Manual and Data Book, Bulletin S-148, is the most '/ complete coverage of the subject \, available today. Write for your copy ;: . . . or for a discussion with a Pennsalt ; field engineer about your application. •
Acid
1.465
. , 9 1 . 0 % (min.)
Chloride
0 . 1 % (max.)
Suggested uses catalyst reaction medium intermediate
METHANE SULFONYL CHLORIDE Mol.
CH3SO2C1
W t . 114.6
Recent Lot Analysis Color
light straw
Titer Sp. Gr. @ 2 0 / 2 0 ° C
99% 1.485
Suggested uses catalyst
intermediate
Available from pilot plant production Technical literature and samples available on request.
Industrial Chemicals Division PENNSALT
CHEMICALS
CORPORATION
T h r e e P e n n C e n t e r · P h i l a d e l p h i a 2, Pa.
PRODUCT DEVELOPMENT DEPARTMENT PENNSALT CHEMICALS CORPORATION THREE PENN CENTER · PHILA. 2, PA.
