Abstract: Tantalum (TaF.sub.5) or antimony pentafluoride (SbF.sub.5) is separated from a product mixture comprised of HF, isobutyryl fluoride and TaF.sub.5 or SbF.sub.5 by distillation below 760 mm of mercury.

Abstract: Toluene and formaldehyde produce styrene in a gas phase catalytic process using a basic hydroxide of Group I or II, at formaldehyde to toluene mole ratios of from 0.001 to 0.10.

Abstract: Disclosed are antidotal compounds for use with active thiocarbamate and/or chloroacetanilide herbicides to control weeds without affecting crops such as corn and soybeans. Compositions of the antidote and the active thiocarbamates and/or chloroacetanilides are also disclosed.

Abstract: Disclosed are compounds such as 5-(2-chloro-4-trifluoromethylphenoxy)-2-nitroacetophenone oxime-O-methyl ether, and the method of controlling weeds, such as wild oats with the compounds.

Abstract: Disclosed are novel herbicides, such as ethyl N-3,5-dichlorobenzoyl-N-isopropylaminoacetate, as well as their use against weeds.

Abstract: Compounds, such as 5-(2-chloro-4-trifluoromethylphenoxy)-2-nitroacetophenone oxime-O-(acetic acid, methyl ester) and 5-(2-chloro-4-trifluoromethylphenoxy)-2-chloroacetophenone oxime-O-(acetic acid, methyl ester), are useful for postemergence and preemergence control of weeds, and are represented by Formula I of the application.

Abstract: Methyl methacrylate or other .alpha.-.beta. unsaturated esters are prepared by contacting an oxydehydrogenation-esterification catalyst with a feed mixture of a saturated acid (e.g., isobutyric acid), an alkyl alcohol (e.g., methanol), oxygen, with or with H.sub.2 O, preferably with H.sub.2 O for a time sufficient to form an alkyl .alpha.-.beta. unsaturated ester as described herein.

Abstract: Disclosed are antidotal compounds for use with active thiocarbamate and/or chloroacetanilide herbicides to control weeds without affecting crops such as corn and soybeans. Compositions of the antidote and the active thiocarbamates and/or chloroacetanilides are also disclosed.

Abstract: The ultraviolet light transmittance of ethylene glycol containing ultraviolet light absorbing impurities is increased by exposing the ethylene glycol to ultraviolet radiation at a wavelength of at least 220 nanometers from a controllable ultraviolet radiation emission source.

Abstract: Both novel and known S-(substituted-phenyl) N-alkylthiolcarbamates such as 4-fluorophenyl N-methylthiolcarbamate, and S-(substituted-phenyl) N,N-dialkylthiolcarbamates such as 2-chlorophenyl N,N-dimethylthiolcarbamate are disclosed. These are useful to control plant pests such as Phytophthorans infestans (Late Blight of Tomatoes) and Pythium ultimum (Damping Off). Also disclosed are the methods of controlling this plant pest with these compounds.

Abstract: The disclosed compounds, such as 3-[5-[1-(2-chlorophenoxy)ethyl]-1,3,4-thiadiazol-2-yl]-4-hydroxy-1-methyl- 2-imidazolidinone, are useful for preemergence and postemergence control of weeds, such as jimsonweed.

Abstract: The disclosed compounds, such as 3-[5-[1-(3,5-dichlorophenoxy) ethyl]-1,3,4-thiadiazol-2-yl]-4-hydroxy-1-methyl-2-imidazolidinone, are useful for preemergence control of weeds, such as jimsonweed.

Abstract: Disclosed are compounds such as 3-[5-(1,1-dimethylethyl)-3-isoxazolyl]-1-methyl-4-hydroxy-2-imidazolidinon e; their control of weeds such as johnsongrass; the process of making them; and intermediates for making them, the compounds being represented by a Formula I: ##STR1## wherein A is ##STR2## where R is an alkyl of up to six carbon atoms; an alkenyl of up to five carbon atoms; an alkynyl of up to five carbon atoms; a cycloalkyl selected from the group consisting of cyclopropyl, cyclobutyl, cyclopentyl, and cyclohexyl; a haloalkyl of up to six carbon atoms; --R.sup.4 --O--R.sup.5, or --R.sup.4 --S--R.sup.5, where R.sup.4 is an alkylene of up to six carbon atoms and R.sup.5 is an alkyl of up to six carbon atoms; ##STR3## where Z is nitro (NO.sub.2), chloro (Cl), bromo (Br), fluoro (F), or R.sup.5, and n is 0, 1, 2, or 3; R.sup.1 is an alkyl of up to three carbon atoms, or allyl; R.sup.2 is hydroxy (OH), chloro (Cl) or bromo (Br); and R.sup.

Abstract: The disclosed compounds, such as 3-[5-[1-(4-chlorophenoxy)ethyl]-1,3,4-thiadiazol-2-yl]-4-hydroxy-1-methyl- 2-imidazolidinone, are useful for preemergence and postemergence control of weeds, such as jimsonweeds.

Abstract: Disclosed are compounds, for example, methyl N-[5-(2-chloro-4-trifluoromethylphenoxy)-2-nitrobenzoyl]carbamate; the process of making the compounds; and the method of controlling weeds such as yellow foxtail and johnsongrass when growing among crops with the compounds represented by Formula I: ##STR1## wherein X is hydrogen (H), chloro (Cl), or bromo (Br); Z is nitro (NO.sub.2), halogen, or cyano (CN); and R is an alkyl of up to four carbon atoms or ##STR2## where A is halogen, an alkyl of up to three carbon atoms, an alkoxy of up to three carbon atoms, an alkylthio of up to three carbon atoms; cyano (CN), trifluoromethyl (CF.sub.3), nitro (NO.sub.2), or CO.sub.2 R.sup.2, where R.sup.2 is an alkyl of up to four carbon atoms, and n is an integer of 0, 1, 2, or 3.

Abstract: Finely divided silica is used as a flattening agent to reduce gloss in lacquers and varnishes, but untreated silica tends to settle out of certain lacquers and varnishes to form a hard layer that is resistant to redispersion. Treatment of the silica with a reactive organopolysiloxane such as methyl hydrogen polysiloxane reduces the tendency of the silica to settle and renders it more easily redispersible. The treated silica may be incorporated into known lacquers, varnishes, and other coating compositions.

Abstract: Disclosed are compounds such as 5-(2-chloro-4-trifluoromethylphenoxy)-2-nitroacetophenone oxime-O-methyl ether, and the method of controlling weeds, such as wild oats with the compounds.

Abstract: Disclosed are novel herbicides, such as ethyl N-3,5-dimethyl benzoyl-N-isopropylaminoacetate, as well as their use against weeds.

Abstract: An aqueous alkaline waste stream containing chlorinated hydrocarbons is treated in an electrolytic diaphragm cell both to reduce the organics content of the waste stream as well as to recover chlorine and caustic values.

Abstract: The disclosed compounds such as 3-[5-[1-(2-methylphenoxy)ethyl]-1,3,4-thiadiazol-2-yl]-4-hydroxy-1-methyl- 2-imidazolidinone, control weeds preemergence and postemergence.