BRIEFS - Chemical & Engineering News Archive (ACS Publications)

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BRIEFS some talk about sodium sulfide • sodium sulfhydrate • sodium chlorate • thionyl chloride

steel drums of 100, 450, 600 pounds net or in tank cars of 80,000 or 100,000 pounds bulk, minimum weight. Want more facts? The coupon will bring you data.

HAVE A NEED FOR THIONYL CHLORIDE?

sulfhydrate to do the same job. So you will have to buy and store that much less chemical. Like our sulfide, the sulf­ hydrate is also completely and rapidly soluble in cold water and can usually be used without filtering or decanting. This sodium sulfhydrate assays 7072% with water of crystallization at 18 to 26%. Iron content is held to 5 ppm or lower. You can find out more by returning the coupon.

SODIUM CHLORATE... 991/2% PURE

SODIUM SULFIDE... NO SETTLING REQUIRED We put up sodium sulfide in small flakes so you get a faster dissolving ac­ tion, even in cold water. You do away with settling and filtering, since the clear water solutions show no appre­ ciable sediment. The total sodium sulfide content is 60-62% with 35% water of crystalliza­ tion. The chemical is relatively free from salt impurities. Iron content is 8 ppm maximum. Check the coupon if you would like to learn more.

6 POUNDS OF SODIUM SULFHYDRATE DO 10 POUNDS OF WORK

That's the purity of our sodium chlo­ rate in the technical grade. Hooker sodium chlorate is available in the form of white crystals. It's very soluble in water and is a very strong oxidizing agent. Our sodium chlorate is used as a source of chlorine dioxide and as an oxidizing agent in dye manufacture and metallurgy. You also have a choice of shipment :

You can use our thionyl chloride in or­ ganic synthesis to replace with chlorine various groups such as OH, SH, SO2, H or O. It's especially useful in making organic acid chlorides and anhydrides. Thionyl chloride reacts with hydroxyl groups in organic compounds to form gaseous by-products, SO2 and HC1, which can be easily removed. Thionyl chloride is available in two grades to give you the purity needed: 98% for the refined and 93% for the technical. It can be used to introduce sulfur alone or a sulfur-oxygen combination . . . and as a chlorinating agent in the manufacture of isoamyl chloride, syn­ thetic pyrethrum, phenyl propyl chlo­ ride and synthetic vitamin A palmitate. As a start to using it yourself, send the coupon, and we'll send you our thionyl chloride data sheet and Bulle­ tin 328-B, Hooker Chlorinating Agents, a 20-page brochure on reacting thionyl and other chlorinating agents.

For more information, check the chemical you're interested in and include your name, title and firm address. Π Sodium sulfide Π Sodium sulfhydrate Π Sodium chlorate Π Thionyl chloride, data sheet and Bulletin 328-B

HOOKER CHEMICAL C O R P O R A T I O N These six pounds of sodium sulfhydrate give as much sulfidity as ten pounds of sodium sulfide, and about half the al­ kalinity. A little quick arithmetic will show you that you'll need 40% less sodium

605-1 Forty-seventh Street, Niagara Falls, New York

HOOKER

Sales Offices: Buffalo Chicago Detroit Los Angeles New York Niagara Falls Philadelphia Tacoma Worcester, Mass. In Canada: Hooker Chemicals Limited, North Vancouver, B.C.

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