Halogens, incompatibilities with

Precaution Extremely flamm. gas may form flamm/explosive mixts. with air reactive with oxidizers, halogens incompat. with oxidizers, halogens, acids, alkalis may be reactive with water reaction prod, with air is silica Hazardous Decomp. Prods. Combustion silica decomp, releases hydrogen reaction with water may release methane may dec. to silicon carbide and hydrogen elevated temps. (>... 

Strong oxidizers and strong acids are incompatible with nikanolamines. Reactions, generating temperature and/or pressure increases, may occur with halogenated organic compounds. Alkan olamines are corrosive to copper and brass and may react. Contact with aluminum by alkan olamines, particularly when wet or at elevated temperatures (60°C), should be avoided. 

The reduction of conjugated nitroalkenes such as S-nitrostyrenes to oximes provides easy access to a large number of versatile organic intermediates. However, despite their potential utility, many of these methods suffer from the use of strongly acidic or basic conditions, requirement of anhydrous conditions, and incompatibility with halogenated arenes. Eurther, some of the methods are inefficient for the preparation of aldoximes due... 

Stability. Incompatible with metals such as aluminium and copper, halogenated organics, strong acids, oxidizing materials and absorbent materials (cellulose, sawdust) (Dow Chemical Company, 1999a)... 

The Lewis acid catalyzed conjugate addition of allylsilanes (140) to (142) and allylstannanes (154) and (155) to ot,0-enones, described by Sakurai,68a,68b is highly efficient and experimentally simple in contrast to the allylcuprate additions. Various substituents can be incorporated into the allylsilanes (allylstannanes), e.g. alkoxy, alkoxycarbonyl and halogen, some of which are incompatible with cuprate reagents 69 In addition, Heathcock and Yamamoto report that diastereoselectivity is correlated to the alkene geometry of both the allylmetals and the acceptor units for example, allylation of ( )-enones (143) and (146) affords predominantly the syn adducts (144) and (147), while (Z)-enone (149) gives predominantly the anti adduct (150 Scheme 25).680 On the other hand, with cyclohexen-2-one the (Z)-silane (141) affords predominantly the threo adduct (152), while (142) affords erythro adduct (ISS).686 The more reactive allylstannanes (154) and (155) also afford similar diastereoselectivity.68e,f... 

Initial work involved the functionalisation of C as a TBDPS ether (as in 59a) However, this proved to be incompatible with our overall approach. An alternative, and somewhat more direct strategy involved the incorporation of a halogen at C from the outset. This was expected to be entirely compatible with subsequent steps, conveniently undergoing transformation into the corresponding triphenylphosphonium salt at a later stage. Initially, the bromide 59b was chosen and indeed was found to be admirably compatible with the ensuing chemistry. However, during... 

Note Colorless, odorless (when pure), hygroscopic liquid, powerful aprotic solvent dissolves many inorganic salts, soluble in water combustible readily penetrates the skin incompatible with strong oxidizers and many halogenated compounds (e.g., alkyl halides, aryl halides), oxygen, peroxides, diborane, perchlorates. Synonyms DMSO, methyl sulfoxide, sulfinylbismethane. 

Naphthol. Incompatible with strong oxidizing agents, strong bases, acid chlorides, and acid anhydrides, halogens.3... 

The HOMO, 4ai (only valence shell orbitals are numbered), represents a combination of halogen p AOs destabilized by an antibonding interaction with a central atom sp hybrid orbital. Thus this MO is antibonding E—Hal MO in nature and has quite a large contribution from a central atom valence s orbital. This explains the quite low IEs observed for ionizations from 4a 1 MO, incompatible with a lone-pair orbital mainly localized on the central atom. This MO determines the Lewis base properties of the central atom in EHal2. 

SAFETY PROFILE A human poison by ingestion. An experimental poison by inhalation and ingestion. A severe eye irritant. Human systemic irritant effects by ocular and inhalation routes. Mutation data reported. Incompatible with acrolein, nitromethane, acryUc acid, chlorosulfonic acid, dimethyl sulfate, halogens, (Au + aqua regia), HCl, HE, HNO3, oleum, p-propiolactone, propylene oxide, AgNOs,... 

DFG MAK 1.5mg/m3 DOT CLASSIFICATION 4.2 Label Spontaneously Combustible SAFETY PROFILE Moderately toxic by intravenous route. Experimental reproductive effects. It can cause a dust irritation, particularly to the eyes and mucous membranes. See also CARBON BLACK, SOOT. Combustible when exposed to heat. Dust is explosive when exposed to heat or flame or oxides, peroxides, oxosalts, halogens, interhalogens, O2, (NH4NO3 + heat), (NH4CIO4 240°), bromates, Ca(OCl)2, chlorates, (CI2 + Cr(OCl)2), CIO, iodates, IO5, Pb(N03)2, HgNOs, HNO3, (oils + air), (K + air), Na2S, Zn(N03)2. Incompatible with air, metals, oxidants, unsaturated oils. 

Incompatible with ethanol, ethanol + butadiene, ethanol + phosphorus, ethanol + methanol + HgO, formamide + pyridine + sulfur trioxide, formamide, halogens or interhalogens (e.g., chlorine), mercuric oxide, metals (e.g., aluminum, lithium, magnesium), metal carbides (e.g., lithium carbide, zirconium carbide), oxygen, pyridine, sodium hydride, sulfides. 

SAFETY PROFILE Poison by intravenous route. Lanthanum and other lanthanoids can cause delayed blood clotting leading to hemorrhages. Has caused liver injury" in experimental animals. The dust is a dangerous fire hazard when exposed to flame can react vigorously with oxidizing materials. Violent reaction with nitric acid, phosphoms (above 400°C), air, halogens. Moderately explosive in the form of dust when exposed to flame or by chemical reaction. Incompatible with H2O, C, N, B, Se, Si, S. See also RARE EARTHS and POWDERED METALS. 

Rb2C2, Na, Na2C2, SnO, diaminolithiumacetylene carbide. Will react with water or steam to produce toxic and corrosive fumes. Incompatible with halogens or interhalogens, lithium nitrate, metal acetyUdes, metal oxides, metals, polymeric tubing, potassium chlorate, sodium hydride. 

Dimethylacetamide is incompatible with carbon tetrachloride, oxidizing agents, halogenated compounds, and iron. It attacks plastic and rubber. Contact with strong oxidizers may cause fire. 

Phenylmercuric salts are incompatible with halides, particularly bromides and iodides, as they form less-soluble halogen compounds. At concentrations of 0.002% w/v precipitation may not occur in the presence of chlorides. Phenylmercuric salts are also incompatible with aluminum and other metals, ammonia and ammonium salts, amino acids, and with some sulfur compounds, e.g., in rubber. 

---