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Prepared by U. S. Industrial Chemicals Co.
U.S.I. CHEMICAL NEWS May
A Series for Chemists a n d Executives of t h e Solvents a n d Chemical C o n s u m i n g I n d u s t r i e s
Chemical Progress Week Sponsored by the M a n u f a c t u r i n g Chemists' Association, May 17-22 is the first annual Chemical Progress Week. Its CHEMICAL PROGRESS p u r p o s e is to b r i n g WEEK-MAYP22 home to the American public the significance of the chemical industry in terms of the individual. U.S.I., as a member of t h e MCA, is happy to participate in this industry-wide effort.
Alhyd Resin Improves Outside House Paints Outside house paints containing a new U.S.I, alkyd resin, Aroplaz 1400, should maintain a better looking appearance for a longer time. The result of over 7 years of research and practical testing. Aroplaz 1400 is a pure, low viscosity alkyd. It can be used in either white or tinted paints in place of all or part of the oil, such as linseed, ordinarily used. Tests indicate that paints made with Aroplaz 1400 give cleaner, whiter surfaces after exposure and that the over-all durability is considerably improved. Aroplaz 1400, experimentally known as resin DX-159, is now in commercial production and is supplied at 100% solids content. U.S.I, offers detailed information to paint manufacturers who wish to make independent investigations of this unique new resin.
Promising Sunscreen Is Introduced For Cosmetics A new development in filters for ultraviolet light, particularly useful for sunscreen cosmetics, has been announced by U.S.I. T h e material, known as H-124S, is (butyl carbityl) (6-propyl piperonyl) ether. Safe for application to the skin, the new product is a practically odorless oil of extremely low volatility. It is chemically stable as well as stable to the action of ultraviolet light, and also shows excellent solubility characteristics. H-124S stabilizes esters presently used in sunscreen compositions. The promising compound can be used by cosmetic manufacturers alone or, preferably, to supplement the absorption range of existing sunscreen materials. Of great importance is the fact that it does not screen out tanning rays. Further information on H-124S as a sunscreen can be obtained by writing to the editor of U.S.1. Chemical News.
1954
Interest Renewed in CPR Products As Truck and Garden Insecticide D u e to No Build-Up of Immunity Synergized Rotenone and Pyrethrins Regain Preferred Position Increasing reports of build-up of acquired resistance or so-called "immunity" by insects against some insecticides bas resulted in renewed interest in CPR dusts and sprays. CPR is a combination of piperonyl cyclonene. pyrethrins and "
Methionine Increases Growth Rate of Infants Infants fed half-again as much DL-methionine as their diets normally would contain gained 2 0 % more weight in a month's time, according to a recent report. These results further illustrate the strategic role methionine plays in the metabolism of fat, protein, sulfur a n d water. The group of infants between the ages of three and four months was given supplemental methionine at the rate of 180 milligrams a day. Another group receiving the same basic diet, without methionine, was studied for purposes of comparison. The extra methionine produced no unfavorable reactions.
Table of Elements
Revised
A new periodic table of the elements has been prepared with improvements in layout and arrangement. This is said to be particularly true with respect to the complicated placement of atomic weights and numbers in relation to the symbol of the element.
rotenone. and t h e synergistic action of piperonyl cyclonene increases the effectiveness of the combination beyond the sum total of the three insecticides individually. Because of its recognized effectiveness combined with low toxicity — all three ingredients being of a low order of toxicity — C P R has enjoyed a preferred position in control of many insects, particularly in the garden and truck crop field. In t h e sweeping upsurge of newer chlorinated hydrocarbons, many growers risked the greater toxic hazards to avail themselves of thie residual killing power of these insecticides. R o t e n o n e in S h o r t S u p p l y Reports of insects building an immunity to these insecticides have increased in each season. First it was flies, then mosquitoes and more recently other insects such as the cabbage caterpillar. The result has been a resurgence of rotenone, which had long been the basic insecticide of these growers. In the intervening t i m e , however, supplies of rotenone have become critical and it became apparent that the extra effectiveness of synergized r o t e n o n e could i serve a s the b e s t method for extending the smpply and in- I
New Plastic Windows Keep Themselves Clean A new type of plastic window has been designed for industrial and public buildings. The windows are said to be self-cleaning, shatterproof and translucent. They are glazed on one side only and transmit diffused, glarefree light. Casement-type windows are available in various sizes to fit all standard casement frames, according to the manufacturer. The windows snap into place.
Application of CPR dust to beans with a tractor operated dusting machine. CPR products control insect infestation in such a manner that produce is free of hazardous toxic residues.
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U.S.I. CHEMICAL NEWS
May
CONTINUED
Netv Interest In Ultrasonics May Be of Use CPR Products In Pharmaceutical Industry
creasing the results. Not only a r e p y r e t h r i n s and r o t e n o n e helpful in " a c t i v a t i n g " e a c h o t h e r , b u t b o t h of t h e m give a s y n e r g i s t a c t i o n in c o m b i n a t i o n with piperonyl cyclonene. New CPR Products F o u r n e w C P R s p r a y p r o d u c t s for u s e on garden and house plants are being introduced to t h e m a r k e t for i n s e c t i c i d e f o r m u l a t o r s in 1954, i n a d d i t i o n t o t h e d u s t b a s e a n d s p r a y c o n c e n t r a t e s p r e v i o u s l y a v a i l a b l e from U . S . I . W i t h these products, forir ulators can obtain s t a n d a r d i z e d c o m b i n a t i o n s of i n g r e d i e n t s for w h i c h all l a b e l i n g a n d t e s t d a t a is c o m p l e t e . T h e c o n v e n i e n c e of t h e s e c o m b i n a t i o n s w o r k s two w a y s : in p r o v i d i n g t h e f o r m u l a t o r s with supplies which meet known standards for e a c h a n d all of the i n g r e d i e n t s , a n d seco n d in p r o v i d i n g r e s e a r c h - s u p p o r t e d c l a i m s for t h e p r o d u c t h e sells. T h e c o m m e r c i a l g r o w e r of b e a n s , c a b b a g e , cauliflower, b r o c c o l i , s q u a s h a n d c u c u m b e r s finds t h e C P R p r o d u c t s c a n c o n t r o l i n s e c t infestation in s u c h a m a n n e r t h a t t h e p r o d u c e will b e free of h a z a r d o u s t o x i c r e s i d u e s . A n d the h o m e g a r d e n e r w a n t s an insecticide which will c o n t r o l a w i d e r a n g e of i n s e c t s . T h e r e is i n c r e a s i n g e v i d e n c e t h a t o n e of t h e a d v a n t a g e s of t h e b o t a n i c a l i n s e c t i c i d e s s u c h a s C P R l i e s i n t h e fact t h a t t h e y a r e n o t so d e s t r u c t i v e t o n a t u r a l p a r a s i t e s of i n s e c t s . T h i s w a s r e c e n t l y r e p o r t e d o n in Pyrethrum Post w i t h r e f e r e n c e t o t h e w o r k of Dr. C. P . C l a u s e n of t h e U n i v e r s i t y of California. According to the j o u r n a l , "Clausen has c o n c l u d e d , a f t e r a r e v i e w of different w o r k e r s ' observations, t h a t b o t a n i c a l insecticides are superior to i n o r g a n i c m a t e r i a l s where v e r r e p e a t e d a p p l i c a t i o n is m a d e . H e b e l i e v e s t h a t such materials a s r o t e n o n e and pyret h r u m kill only t h e a d u l t p a r a s i t e s p r e s e n t on foliage, and nothing further. H e points out that chemical a n d biological control measures may sometimes b e incompatible, sometimes s u p p l e m e n t a r y . " T h e s e n e w developm e n t s are all c o n t r i b u t i n g to t h e renewed interest a n d new p r o d u c t s b a s e d on C P R .
T h e u s e of u l t r a s o n i c s h o l d s r e a l p o t e n t i a l for t h e p h a r m a c e u t i c a l i n d u s t r y , a c c o r d i n g t o a r e c e n t r e p o r t . T h e m o s t p r o m i s i n g u s e of u l t r a - s o u n d in t h e i n d u s t r y is t h o u g h t t o l i e in its a p p l i c a t i o n to p r o b l e m s w h i c h h a v e n o t b e e n solved b y o t h e r p h y s i c a l a n d c h e m i c a l p r o c e s s e s . O n e possibility i s s a i d to be i n t h e p r o d u c t i o n of e m u l s i o n s a n d s u s p e n s i o n s i n m a t e r i a l s p r e v i o u s l y r e f r a c t o r y t o such t r e a t m e n t . A n o t h e r is i n t h e p r o d u c t i o n of vaccines, where experiments have shown that intact u n d e n a t u r e d antigens can be extracted u l t r a s o n i c a l l y from t h e m i c r o o r g a n i s m s r e s p o n s i b l e for t u b e r c u l o s i s a n d o t h e r d i s e a s e s .
Alkylating Agent Helps In Synthesis of Organics A n e w method for m a k i n g m a n y alkylated compounds h a s been developed. Described a s p r o m i s i n g f o r t h e p r e p a r a t i o n of l u b r i c a n t s , additives, plasticizers, therapeutic agents a n d surface-active agents, t h e method u s e s a n a l k y l a t i n g a g e n t w h i c h c a n b e o b t a i n e d from c o m m e r c i a l v e g e t a b l e oils. T h e alkylating agent, according to res e a r c h e r s , is a l o n g - c h a i n a l k y l g r o u p . I t c a n b e u s e d to a l t e r t h e m o l e c u l a r s t r u c t u r e of such varied organic types a s phenols, m e r c a p tans, alcohols, amines, salts and benzene.
Gold Discs Burst At Low Pressures
PRODUCTS
ACETONE-A.C.S.
OTHER ESTERS Diatol* Diethyl Carbonate Ethyl Chloroformate
ANSOLS Ansol* M Ansor PR
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TECHNICAL Information items may
DEVELOPMENTS
about manufacturers of be obtained by writing
A n e w line of l a b o r a t o r y g l a s s w a r e is described a s s m a l l e r t h a n r e g u l a r g l a s s w a r e , but not in the micro r a n g e . (No. 1041) Antibiotic b a n d a g e s a r e n o w a v a i l a b l e without a prescription. I m p r e g n a t e d with a combination of three a n t i b i o t i c s , they h a v e b e e n a p p r o v e d for s a l e b y the Food a n d Drug Administration. (No. 1042) For t a p p i n g / d e e p h o l e drilling, lathe machine cuttincj or h a n d r e a m i n g o n a n y metal, a blend of c h e m i c a l s i s s a i d to free the tool a n d permit continued rotation a n d p r e s s u r e . According to the m a n u f a c t u r e r , l e s s tool b r e a k a g e a n d cleaner threads, s u r f a c e a n d holes a r e the result. (No. 1043) Aluminum t r a n s p o r t cans m a y replace stainless steel c a n s for storing a n d transporting chemicals, p h a r m a c e u t i c a l s a n d food products. The lightweight c a n s a r e described a s s e a m l e s s a n d easy to c l e a n a n d h a v e a n airtight s e a l . (No. 1044) Gas a n d a i r l e a k s c a n b e detected b y a liquid which p e n e t r a t e s r u s t scales a n d cracks, forming b u b b l e s w h e r e the l e a k occurs. The liquid is claimed to b e nonflammable a n d nonexplosive. (No. 1045) A nonionlc d e t e r g e n t soluble to a degree i n most oils h a s b e e n d e v e l o p e d . It will be manufactured in a c o m m e r c i a l g r a d e for the textile, g e n e r a l cleaning a n d oil a d d i t i v e trades, a n d according to the report, a refined product will be p r o d u c e d for t h e c o s m e t i c industry. (No. 1046) Erbium oxide is reported to b e a v a i l a b l e at a minimum p u r i t y of 98%. Principal impurities a r e fractional p e r c e n t a g e s of dysprosium, holmium, thulium, y t t e r b i u m a n d yttrium oxides. (No. 1047) Serological b a t h s -with a temperature control closer t h a n 0.4° C. h a v e b e e n m a r k e t e d . The base a n d w a l l s a r e claimed to be free of h e a t i n g elements, "which h a v e b e e n p l a c e d b e n e a t h t h e stainless s t e e l t a n k . (No. 1048) Single c r y s t a l g e r m a n i u m is n o w in commercial production. T h e crystals a r e described a s homogeneous in e l e c t r i c a l a s well a s c r y s t a l properties, not o n l y on a gross scale but a l s o on a microscopic s c a l e . (No. 1049)
Ο F . U . S. . I .
RESINS (Synthetic and Natural) Arochem*—modified types Arofene*—pure phenolics Aroflat*—for special flat finishes Aroflint*—room temperature curing phenolic Aroplaz*—alkyds and allied materials Aropol*—copolymer modified alkyds Ester Gums—all types Natural Resins—all standard grades INSECTICIDE MATERIALS Allethrin CPR Coicentrates: Liquid & Dust Piperonvl Butoxide Piperonyl Cyclonene Pyrenone* Concentrates: Liquid & Dust Pyrethrum Products: Liquid and Dust Rotenone Products: Liquid and Dust INSECTIFUGE MATERIALS Indalone* Triple-Mix Repellents
| INTERMEDIATES Acetoacetanilide Acetoacet-ortho-chloroanilide Acetoacet-ortho-toluidide Acetoacet-para-chloroanilide Ethyl Acetoacetate Ethyl Benzoylacetate Ethyl Sodium Oxalacetate FEED PRODUCTS Calcium Pantothenate (Feed Grade) Choline Chloride Curbay B-G* 80 DL-Methionine (Feed Grade) Niacin, U.S.P. Riboflavin Concentrates Special Liquid Curbay* U . S . I . Vitamin &i2 and Antibiotic Feed Supplements Vacatone* 40 OTHER PRODUCTS Acetaldehyde Metallic Sodium Caustic Soda Methionine (Pharm.) Ethylene N-Acetyl DL-Methionlne IPC (Isopropyl-NNitrocellulose Solns. Phenyl Carbamate) Propionaldehyde CIPC Propionic Acid Liquid Chlorine Sulfuric Acid Urethan, U.S.P. •Reg. U.S. Pat. Off.
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A n insect r e p e l l e n t p a c k a g e d in a n Aerosol container is s a i d t o give positive protection a g a i n s t mosquitoes, b l a c k flies, chiggers a n d m a n y others. It is d e s c r i b e d as virtually odorless after application a n d safe for clothing. (No- 1040)
G o l d is n o w b e i n g u s e d t o m a n u f a c t u r e lowp r e s s u r e r u p t u r e discs. Gold discs reportedly have been found to burst consistently at low p r e s s u r e , b e i m m u n e to c o r r o s i o n a n d y e t b e e c o n o m i c a l . T h e y a r e s a i d to b e a c c u r a t e to w i t h i n 5 % f o r b u r s t i n g p r e s s u r e s a b o v e 50 p s i a n d to w i t h i n 2 psi f o r b u r s t i n g p r e s s u r e s l e s s t h a n 5 0 psi. S i n c e t h e p r e c i o u s m e t a l is r e c l a i m a b l e . t h e cost of the d i s c s d o e s n o t differ g r e a t l y from base metal discs.
ALCOHOLS Amyl Alcohol (Isoamyl Alcohol) Butanol (Normal-Butyl Alcohol) ACETIC ESTERS Fusel Oil — Refined Amyl Acetate—Commercial Propanol (Normal-Propyl Alcohol) and High Test Butyl Acetate Ethanol (Ethyl Alcohol) Ethyl Acetate—all grades Specially Denatured—all regular Normal-Propyl Acetate and anhydrous formulas Completely Denatured—all regular and anhydrous formulas OXALIC ESTERS Pure—190 proof U.S.P., Dibufyl Oxalate Absolute-—200 Proof Diethyl Oxalate Solox*—proprietary solvent— regular and anhydrous PHTHALIC ESTERS ETHERS Diamyl Phthalate Ethyl Ether, U.S.P. Dibutyl Phthalate Ethyl Ether, Absolute—A.C.S. Diethyl Phthalate
1954
BRANCHES I N ALL PRINCIPAL CITIES
