Hydrogen chlonde

Methyl 2 propanol Hydrogen chlonde ten butyl alcohol)... 

Acyl chlonde Carboxylic acid Acid anhydnde Hydrogen chlonde... 

The use of penodic acid oxidation m structure determination can be illustrated by a case m which a previously unknown methyl glycoside was obtained by the reaction of D arabmose with methanol and hydrogen chlonde The size of the nng was identified as five membered because only one mole of penodic acid was consumed per mole of glycoside and no formic acid was produced Were fhe nng six membered fwo moles of penodic acid would be required per mole of glycoside and one mole of formic acid would be produced... 

These products are thermally stable at room temperature but decompose at elevated temperatures by ehtmnation of CFj The reaction with hydrogen fluonde IS different from that with hydrogen chlonde and hydrogen bromide Presumably this difference is derived from the strength of the boron-fluonne bond [108 (equauon 86)... 

As expected, elimination of hydrogen fluoride in most cases is considerably more difficult In bimolecular reactions, the rates are about 2-3 orders of magnitude lower than those of hydrogen chlonde and about 4-5 orders of magnitude lower than those of hydrogen bromide [10]... 

Dehydrochlonnation of bis(tnfluorometh,ylthio)acetyl chloride with calcium oxide gives bis(trifluoromethylthio)ketene [5] (equation 6) Elimination of hydrogen chlonde or hydrogen bromide by means of tetrabutylammonium or potassium fluoride from vinylic chlorides or bromides leads to acetylenes or allenes [6] (equation 7) Addition of dicyclohexyl-18-crown-6 ether raises the yields of potassium fluoride-promoted elimination of hydrogen bromide from (Z)-(J-bromo-p-ni-trostyrene in acetonitrile from 0 to 53-71 % In dimethyl formamide, yields increase from 28-35% to 58-68%... 

Preferential elimination of hydrogen fluonde occurs also in highly fluorinated lH -chlorodecafluorocyclohexanes and m 1H,1,2-dichlorononafluorocyclahex-anes [57] It takes place predominantly but not exclusively only m those isomers where hydrogen and fluorine are m antipenplanar conformation When hydrogen and fluorine are in synplanar positions, only hydrogen chlonde is eliminated on treatment with 18 N potassium hydroxide at room temperature for 14 h [57] (equation 28)... 

Fig. 5.24 Energy level diagram for he hydrogen chlonde molecule. HCI. The mixing of the f and p orbitals has been emphasized.

HAZARD RISK Very dangerous fire hazard when exposed to heat or flame moderately explosive in the vapor form when exposed to heat or flame forms explosive peroxides when exposed to air can explode spontaneously reaction with ozone forms dangerous products decomposition emits toxic fumes of hydrogen chlonde, chlonne and phosgene NFPA Code H 4 F4 R2. 

Direct Potentiometry Detemdnatiou of Hydrogen Chlonde Gas. A system has been described for the continuous monitoring of the HCl levels in gases or aerosols using a chloride-ion-selective electrode [IS]. This arose from a study on the loss of volatile decomposition products from poly(vinyl chloride) (PVQ and other chlorocarbon polymers in simulated fires. The method works well because of the excellent solubility of HQ in water, and the fact that the chloride electrode senses only free Q ion. Thus, other volatile chloride compounds will not be sensed. 

Melbylene-bis(2-cbloroaniline) (MOCA [CAS 101-14-4)) A carcinogen In test animals (lARC 2A). Dermal absorption occurs. 0.01 ppm, S A2 NIOSH CA Tan solid. Thermal-breakdown products include oxides of nitrogen and hydrogen chlonde. 

Chlorophenol, Dichlorophenol - 250 121 - E - — hydrogen chlonde trace, water vapor trace, moderate aeration... 

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