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13863-41-7 Usage

Chemical Properties

A reddish-yellow mobile liquid or gas. Irritating, pungent odor.

Uses

Bromine chloride (BrCl) is an irritating red, smelly liquid used to treat industrial and sewage wastes.

General Description

A reddish-yellow mobile liquid with an irritating odor. Melting point -66°C. Toxic by ingestion or inhalation, and an irritant to skin, eyes and mucous membranes. Prolonged exposure of the containers to intense heat may result in their violent rupturing and rocketing. Used as an industrial disinfectant.

Air & Water Reactions

Soluble in water [Hawley]. Reacts with water or steam to produce hydrochloric acid.

Reactivity Profile

Bromine chloride is a strong oxidizing agent. May react vigorously with combustible materials and generate enough heat to start and support combustion. Decomposes above 50°F to produce highly toxic chlorine gas.

Health Hazard

TOXIC; may be fatal if inhaled or absorbed through skin. Fire will produce irritating, corrosive and/or toxic gases. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Runoff from fire control may cause pollution.

Fire Hazard

Substance does not burn but will support combustion. Vapors from liquefied gas are initially heavier than air and spread along ground. These are strong oxidizers and will react vigorously or explosively with many materials including fuels. May ignite combustibles (wood, paper, oil, clothing, etc.). Some will react violently with air, moist air and/or water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.

Potential Exposure

Used as an industrial disinfectant

Shipping

UN2901 Bromine chloride, Hazard Class: 2.3; Labels: 2.3—Poisonous gas, 8—Corrosive material, 5.1— Oxidizer Inhalation Hazard Zone B.

Incompatibilities

Dangerous, unstable material. Decomposes above 10° C, releasing highly toxic chlorine gas. A strong oxidizer. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Reacts with moisture, water or steam, forming corrosive hydrochloric acid. Reacts violently with combustibles and reducing agents; reactions may produce enough heat to both start and support combustion. May be corrosive to metals.

Waste Disposal

Dispose of contents and container to an approved waste disposal plant. All federal, state, and local environmental regulations must be observed.

Check Digit Verification of cas no

The CAS Registry Mumber 13863-41-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,8,6 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13863-41:
(7*1)+(6*3)+(5*8)+(4*6)+(3*3)+(2*4)+(1*1)=107
107 % 10 = 7
So 13863-41-7 is a valid CAS Registry Number.
InChI:InChI=1/BrCl/c1-2

13863-41-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name BROMINE CHLORIDE

1.2 Other means of identification

Product number -
Other names Caswell No. 112AA

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:13863-41-7 SDS

13863-41-7Synthetic route

Conditions
ConditionsYield
Kinetics; HOBr/He mixt. (by He bubbling through aq. HOBr soln. at 10-15°C) and Cl excess flowing into quartz flow tube reactor at 300 K and 2.5-3.03 mbar; mass spectrometric monitoring;A 98%
B 98%
Chlorine(I) trifluoromethanesulfonate
65597-24-2

Chlorine(I) trifluoromethanesulfonate

bromine(I) fluorosulfate
13997-93-8

bromine(I) fluorosulfate

A

trifluoromethyl fluorosulfate
926-08-9

trifluoromethyl fluorosulfate

B

trifluoromethyldisulfurylfluoride
21595-44-8

trifluoromethyldisulfurylfluoride

C

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
byproducts: Br2, Cl2; at room temp. for 12 h;A n/a
B 85%
C n/a
bromine
7726-95-6

bromine

chlorine
7782-50-5

chlorine

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In neat (no solvent) Br2 and Cl2 were mixed in a ratio of 1:15 in a 20 l bulb; total pressure 960 mbar; mixture was allowed to equilibrate for 48 h; fluorescence spectroscopy;12.3%
at -30 - 30℃; Neat (no solvent);
at -30 - 30℃;
H2O#dotNaCl#dotNaBr

H2O#dotNaCl#dotNaBr

hypobromous acid
15656-19-6

hypobromous acid

A

bromine
7726-95-6

bromine

B

bromine chloride
13863-41-7

bromine chloride

C

chlorine
7782-50-5

chlorine

Conditions
ConditionsYield
Kinetics; HOBr/He mixt. passing over doped ice at 240 K sprayed onto flow tube wall; monitoring by TOF MS;A n/a
B n/a
C 1%
hypobromous acid
15656-19-6

hypobromous acid

sodium chloride
7647-14-5

sodium chloride

A

bromine chloride
13863-41-7

bromine chloride

B

sodium hydroxide
1310-73-2

sodium hydroxide

Conditions
ConditionsYield
In neat (no solvent) Kinetics; detected by MS;
In neat (no solvent) Kinetics;
chloride
16887-00-6

chloride

bromine
7726-95-6

bromine

A

bromide
10097-32-2

bromide

B

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
Kinetics;
chloride
16887-00-6

chloride

bromine
7726-95-6

bromine

chlorine
7782-50-5

chlorine

A

BrClCl(1-)
96607-00-0

BrClCl(1-)

B

bromine chloride
13863-41-7

bromine chloride

C

trichloride(1-)

trichloride(1-)

D

BrBrCl(1-)

BrBrCl(1-)

Conditions
ConditionsYield
With NaClO4 or HClO4 In water 25°C, pH 1, const. ionic strength (NaClO4 or HClO4), equilibration; monitoring by vapour pressure measurements and spectrophotometry;
tetrachloromethane
56-23-5

tetrachloromethane

bromine
7726-95-6

bromine

A

1,1,2,2-tetrachloroethylene
127-18-4

1,1,2,2-tetrachloroethylene

B

Bromotrichloromethane
75-62-7

Bromotrichloromethane

C

dibromodichloromethane
594-18-3

dibromodichloromethane

D

hexachloroethane
67-72-1

hexachloroethane

E

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In tetrachloromethane other Radiation; γ-radiation of Br2 soln. in CCl4 (free from air) at 25°C; mechanism discussed;;
tetrachloromethane
56-23-5

tetrachloromethane

bromine
7726-95-6

bromine

A

Bromotrichloromethane
75-62-7

Bromotrichloromethane

B

hexachloroethane
67-72-1

hexachloroethane

C

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In tetrachloromethane other Radiation; γ-radiation of Br2 soln. in CCl4 (free from air); yield depends on temp.;;
bromine
10097-32-2

bromine

nitrosylchloride
2696-92-6

nitrosylchloride

A

nitrogen(II) oxide
10102-43-9

nitrogen(II) oxide

B

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
Kinetics; Discharge-flow system, ClNO in excess, He as buffer gas, Br source: Br2 and H or O or Cl in He.; Monitored by resonance fluorescence.;
chlorine
7782-50-5

chlorine

sodium bromide
7647-15-6

sodium bromide

A

bromine
7726-95-6

bromine

B

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In neat (no solvent) byproducts: NaCl; flowing a mixture of Cl2/He trough a cell packed with NaBr at 298 K;
Conditions
ConditionsYield
In gas Kinetics; Irradiation (UV/VIS); flash photolysis at 355 nm, large excess of BrONO2 over Cl, 238- 334 K, 20-100 Torr;
bromide
10097-32-2

bromide

A

chloride
16887-00-6

chloride

B

bromine chloride
13863-41-7

bromine chloride

C

(2)H(1-)

(2)H(1-)

Conditions
ConditionsYield
With diclazuril In neat (no solvent) byproducts: DBr; ion-beam, gas target technique; target pressure 4E-4 Torr; detachment of electrons; further possible products: Br, Cl, D; sepg. electrons from negative ions by electric / magnetic fields; detn. of electrons, Cl(1-) and D(1-) by measurement of electric currents and "time of flight" spectra;
bromide
10097-32-2

bromide

A

chloride
16887-00-6

chloride

B

hydride ion

hydride ion

C

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
With hydrogenchloride In neat (no solvent) byproducts: HBr; ion-beam, gas target technique; target pressure 4E-4 Torr; detachment of electrons; further possible products: Br, Cl, H; sepg. electrons from negative ions by electric / magnetic fields; detn. of electrons, Cl(1-) and H(1-) by measurement of electric currents and "time of flight" spectra;
chloride
16887-00-6

chloride

A

bromide
10097-32-2

bromide

B

hydride ion

hydride ion

C

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
With hydrogen bromide In neat (no solvent) byproducts: HCl; ion-beam, gas target technique; target pressure 4E-4 Torr; detachment of electrons; further possible products: Br, Cl, H; sepg. electrons from negative ions by electric / magnetic fields; detn. of electrons, Br(1-) and H(1-) by measurement of electric currents and "time of flight" spectra;
tetrachloromethane
56-23-5

tetrachloromethane

Bromotrichloromethane
75-62-7

Bromotrichloromethane

A

hexachloroethane
67-72-1

hexachloroethane

B

bromine
7726-95-6

bromine

C

bromine chloride
13863-41-7

bromine chloride

D

chlorine
7782-50-5

chlorine

Conditions
ConditionsYield
In tetrachloromethane other Radiation; γ-radiation of CCl4 and CCl3Br at 25°C; yields given;;
chlorine nitrate
14545-72-3

chlorine nitrate

hydrogen bromide
10035-10-6, 12258-64-9

hydrogen bromide

A

nitric acid
7697-37-2

nitric acid

B

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
fast flow reactor; at 200 K; in presence of ice or cold glas; mass spectrometry;
chlorine
7782-50-5

chlorine

A

hydrogenchloride
7647-01-0

hydrogenchloride

B

bromine
7726-95-6

bromine

C

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In gas Kinetics; Irradiation (UV/VIS); Cl2 photodissociation by highly defocused UV laser pulses (frequency doubled tunable dye laser, 2 μs/pulse, 1 mJ, 300 nm, or frequency tripled Q-switched Nd:YAG laser, 5 ns/pulse, 1-40 mJ, 355 nm); monitoring by HCl infrared chemiluminiscence detection;
chlorotrifluoromethane
75-72-9

chlorotrifluoromethane

bromine
7726-95-6

bromine

A

Bromotrifluoromethane
75-63-8

Bromotrifluoromethane

B

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In neat (no solvent) determination of bond dissociation energy;;
bromine oxide
15656-19-6

bromine oxide

chlorine monoxide
14989-30-1

chlorine monoxide

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In neat (no solvent) Kinetics; byproducts: O2; 298 K, total pressure: 0.6-1 Torr, in discharge flow reactor, excess of Cl over ClO2 in ClO source scavenged by C2H3Br; not isolated, detected by MS;
In gaseous matrix Kinetics; byproducts: O2; react. of BrO with ClO in a discharge flow/MS system, 234-406 K, total pressure 2.0 Torr, carrier gases He, O2, NO; generation of radicals in side arms (O2 or O3/Br2/He for BrO, Cl2/He/O3 or Cl2O for ClO), product ratio (temp., radical source); products not isolated, detd. by MS;
Conditions
ConditionsYield
In gaseous matrix Kinetics; react. of BrO and ClO in gaseous flow (He) at 220 - 400 K, 1 Torr; monitored by MAS;
bromine oxide
15656-19-6

bromine oxide

chlorine monoxide
14989-30-1

chlorine monoxide

A

chlorine dioxide
10049-04-4, 25052-55-5

chlorine dioxide

B

bromine
10097-32-2

bromine

C

oxygen
80937-33-3

oxygen

D

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In gaseous matrix Kinetics; react. of BrO and ClO in gaseous flow (He) at 220 - 400 K, 50 - 700 Torr; monitored UV spect.;
bromine oxide
15656-19-6

bromine oxide

chlorine monoxide
14989-30-1

chlorine monoxide

A

oxygen
80937-33-3

oxygen

B

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In gas Kinetics; reaction studied by the discharge-flow technique at 241-408 K; products determined by mass spectrometry;
hydrogenchloride
7647-01-0

hydrogenchloride

hypobromous acid
15656-19-6

hypobromous acid

A

water
7732-18-5

water

B

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
In sulfuric acid Kinetics; aq. H2SO4; (He); 198-238 K, p(HOBr): 9E-10-1E-7 atm, P(HCl): 2E-10-9E-10 atm, 59.7-70.1 wt. %;
bromine
7726-95-6

bromine

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
With chlorine liq. Cl2;
With chlorine In tetrachloromethane
With chlorine In diethyl ether
hypochlorous anhydride
7791-21-1

hypochlorous anhydride

bromine
7726-95-6

bromine

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
byproducts: bromic acid;
trichloroisocyanuric acid
87-90-1

trichloroisocyanuric acid

bromine
7726-95-6

bromine

A

1,3,5-tribromo-1,3,5-triazinane-2,4,6-trione
17497-85-7

1,3,5-tribromo-1,3,5-triazinane-2,4,6-trione

B

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
in absence of water, 120-150°C, 14d;
bromine
7726-95-6

bromine

hypochloric acid
14989-30-1

hypochloric acid

bromine chloride
13863-41-7

bromine chloride

Conditions
ConditionsYield
With water; chlorine byproducts: HCl; dissolving Br2 in equiv. vol. HClO and H2O, ice cooling, produced satd. with Cl2 soln. of BrCl;
With H2O; Cl2 byproducts: HCl; dissolving Br2 in equiv. vol. HClO and H2O, ice cooling, produced satd. with Cl2 soln. of BrCl;
water
7732-18-5

water

bromine chloride
13863-41-7

bromine chloride

A

hypobromous acid
15656-19-6

hypobromous acid

B

sodium chloride
7647-14-5

sodium chloride

sodium sulfamate

sodium sulfamate

bromine chloride
13863-41-7

bromine chloride

aqueous biocidal formulation

aqueous biocidal formulation

Conditions
ConditionsYield
In water
sodium sulfamate

sodium sulfamate

bromine chloride
13863-41-7

bromine chloride

A

N-bromosulfamic acid sodium salt
134509-56-1

N-bromosulfamic acid sodium salt

B

sodium chloride
7647-14-5

sodium chloride

Conditions
ConditionsYield
Stage #1: sodium sulfamate; bromine chloride With water at 18.8789℃; pH=~ 10.26;
Stage #2: With sodium hydroxide In water Product distribution / selectivity;
bromine chloride
13863-41-7

bromine chloride

6-Chloro-6-bromopenicillanic acid

6-Chloro-6-bromopenicillanic acid

bromine chloride
13863-41-7

bromine chloride

4-cyanophenol
767-00-0

4-cyanophenol

n-octanoic acid chloride
111-64-8

n-octanoic acid chloride

methyl octanate
111-11-5

methyl octanate

Conditions
ConditionsYield
In methanol; 5,5-dimethyl-1,3-cyclohexadiene; hydrogen bromide
bromine chloride
13863-41-7

bromine chloride

sodium bromide
7647-15-6

sodium bromide

bromine
7726-95-6

bromine

Conditions
ConditionsYield
In neat (no solvent) byproducts: NaCl; flowing a mixture of BrCl/He trough a cell packed with NaBr at 298 K;
bromine chloride
13863-41-7

bromine chloride

Nitrogen dioxide
10102-44-0

Nitrogen dioxide

nitric acid
7697-37-2

nitric acid

Conditions
ConditionsYield
In water byproducts: HCl, Br2;
In water byproducts: HCl, HBr; prolonged react. time;
In water byproducts: HCl, HBr; prolonged react. time;
In water byproducts: HCl, Br2;

13863-41-7Relevant articles and documents

Formation of Gas-Phase Bromine Compounds by Reaction of Solid NaBr with Gaseous ClONO2, Cl2, and BrCl at 298 K

Berko, H. N.,McCaslin, P. C.,Finlayson-Pitts, B. J.

, p. 6951 - 6958 (1991)

The reactions at 298 K of solid NaBr with ClONO2(g), Cl2(g), and BrCl(g) at concentrations of (0.9-19.4) x 1013 molecules cm-3 as mixtures in He flowing over the salt were investigated.The gaseous products, analyzed by mass spectrometry, were as follows: for the ClONO2 reaction, Br2 initially and subsequently BrCl and Cl2; for the Cl2 reaction, Br2 followed by BrCl; and for the BrCl reaction, Br2.Ion chromatographic analysis did not show significant replacement of bromide by chloride or nitrate in the bulk solid NaBr.Nitrate formation, however, was verified by FTIR in the ClONO2-NaBr reaction.Surface analyses of the reacted NaBr salts were carried out using X-ray photoelectron spectroscopy.Detectable amounts of surface products (>50percent monolayer coverage for chloride) could be seen only when NaBr was exposed to high concentration of Cl2 for days in a static system.Mechanisms of formation of the gaseous products in these reactions are hypothesized.The potential role of the ClONO2-NaBr reaction in converting both the bromide ion in NaBr and the chlorine atom in ClONO2 into highly photochemically labile gaseous compounds in the troposphere and stratosphere is discussed.

The geometry and intermolecular binding of HCN...BrCl probed by rotational spectroscopy

Hinds, K.,Legon, A. C.

, p. 467 - 473 (1995)

Ground-state rotational spectra of several isotopomers of a linear complex formed between HCN and BrCl were observed by pulsed-nozzle, F-T microwave spectroscopy and analysed to give the spectroscopic constants B(0), D(J), χ(Br), χ(Cl), and M(bb)(Br). The order HCN...BrCl of thenuclei was established from the changes in the B(0) values on isotopic substitution. The small fractional electronic charge (.delta~0.05) transferred from Br to Cl on complex formation and the intermolecularstretching force constant (k(σ)~11 N m**-1) estimated from the spectroscopic constants indicates a weak interaction of HCN and BrCl, with little perturbation of the charge distribution of BrCl.

Vesper, H. G.,Rollefson, G. K.

, p. 1455 - 1461 (1934)

Experimental verification of gas phase bromine enrichment in reactions of HOBr with sea salt doped ice surfaces

Kirchner,Benter, Th,Schindler

, p. 975 - 977 (1997)

Significant gas phase bromine enrichment is experimentally verified on flowing gaseous HOBr over ice surfaces doped with sodium halides of sea salt composition. It is argued that formation of Br2Cl- in the condensed phase followed by

Heterogeneous Reaction HOCl + HBr → BrCl + H2O on Ice Films

Chu, Liang,Chu, Liang T.

, p. 691 - 699 (1999)

The heterogeneous reaction HOCl + HBr(s) → BrCl + H2O(s) on the ice surface at 189 and 220 K has been investigated in a flow reactor interfaced with a differentially pumped quadrupole mass spectrometer. Pseudo first-order decay of HOCl over the HBr-treated ice surfaces has been determined under the condition of PHOCI HBr. For the HBr partial pressure in the range of 1.1 × 10-7 to 6.6 × 10-5 Torr, the reaction probability (yg) was determined in the range of 0.06 to 0.38 at 189 K. The reaction probability is in the range of 0.01 to 0.07 at 220 K for HBr partial pressure from 7.2 × 10-7 to 1.3 × 10-5 Torr. The reaction probability was found to be strongly dependent on the ice surface temperature. The reaction probability is higher at the lower temperature than that at the warmer temperature and a mechanistic explanation is provided. The true reaction probabilities (yt) of the reaction were calculated using a pore diffusion model. The kinetic analysis indicates that the heterogeneous reaction of HOCl + HBr may follow the Eley-Rideal type of mechanism. Also, the heat of uptake of HOCl on ice was determined to be about -8.5 ± 2 kcal/mol.

Vacuum-Ultraviolet Absorption, Fluorescence Excitation, and Dispersed Fluorescence Spectra of BrCl

Hopkirk, Andrew,Shaw, David,Donovan, Robert J.,Lawley, Kenneth P.,Yencha, Andrew J.

, p. 7338 - 7342 (1989)

Absorption and fluorescence excitation spectra of BrCl have been recorded between 137 and 180 nm with the use of synchrotron radiation.A pronounced resonance structure has been observed in the fluorescence excitation spectrum and it is attributed to coupling of ion-pair and Rydberg states.Dispersed fluorescence spectra have been obtained through vacuum-ultraviolet (vacuum-UV) excitation that display several oscillatory continua.These are assigned to emission predominantly from the lowest Ω = O+ ion-pair state (the E state) with probably some contribution from the f(O+) state of the second cluster.Fluorescence to four of the five O+ states correlating with the separated atomic J = 3/2 and 1/2 states is postulated.

Precise equilibrium constants from spectrophotometric data: BrCl in Br2/Cl2 gas mixtures

Tellinghuisen, Joel

, p. 753 - 757 (2003)

The equilibrium constant for the reaction, Br2(g) + Cl2(g), ? BrCl(g). is estimated using the classic spectrophotometric method with precise data and a multispectrum fitting approach. Analysis of spectra for 18 Cl2:Br2 mixing ratios yields K° = 9/1 at 22°C, with a nominal statistical error (1 σ) of 0.04. This error translates into a remarkable precision of 0.4 cm-1 in the dissociation energy of BrCl, easily beating that for the current best spectroscopic estimate (±5 cm-1). However, a sensitivity analysis shows that K° is susceptible to small systematic errors and minor changes in the least-squares fit model, leading to a more conservative estimate of 2% error. The derived K° is consistent with statistical mechanical estimates that employ the current value for the BrCl dissociation energy, but it differs considerably from some recently measured and used values, which range from 6.4 to 10.4. The revised estimate of the BrCl dissociation energy is De = 18 248 ± 2 cm-1.

The Bromine-Chlorine Interhalides [Br3Cl5]2–, [Br4Cl4]2– and [Br6.56Cl1.44]2–

Abdelbassit, Mohammed S.,Curnow, Owen J.,Brooke, Samuel J.,Waterland, Mark R.

, p. 3302 - 3310 (2020)

The bromine-chlorine dianionic octahalide-containing salts [C3(NEt2)3]2[Br4Cl4] (1c) and [C3(NEt2)3]2[Br3Cl5] (2d) were prepared using the triaminocyclopropenium cation as a template. The salt 1c was prepared in two steps, firstly, either by addition of BrCl to the triaminocyclopropenium chloride salt [C3(NEt2)3]Cl or addition of Cl2 to the bromide salt [C3(NEt2)3]Br to form the trihalide [BrCl2]– salt, secondly, addition of half an equivalent of Br2 gave the desired product upon crystallization at low temperature. Salt 2d is prepared by addition of excess BrCl to [C3(NEt2)3]Cl. Both salts are best described as two trihalides bridged by a dihalogen. When the tetraethylammonium cation is used, a salt of the formula [NEt4]2[Br4.56Cl0.44][ClBr2] (4), containing disordered [ClBr2]– and a chain of [ClBr4]– and [Br5]– pentahalides (in a ratio of 0.44 to 0.56, respectively). These interhalides were characterized by X-ray crystallography, computational studies, Raman and Far-IR spectroscopy, as well as by TGA and melting point.

PREPARATION OF DECAHALODIPHENYL OXIDE

-

Page/Page column 11, (2008/06/13)

This invention provides a process of preparing reaction-derived decahalodiphenyl oxide of high purity. The process comprises cofeeding separate feeds of (a) diphenyl oxide and/or partially brominated diphenyl oxide and (b) bromine chloride, bromine chloride and bromine, or bromine chloride and chlorine to a refluxing reaction mixture comprising bromine and at least one Lewis acid bromination catalyst so that high purity decahalodiphenyl oxide is formed.

Active bromine containing biocidal compositions and their preparation

-

, (2008/06/13)

Described are highly concentrated liquid biocidal solutions formed in water from (a) specified bromine sources (e.g., BrCl or mixtures of BrCl and Br2) and (b) alkali metal salt of sulfamic acid and/or sulfamic acid and alkali metal base, wherein the solution contains >160,000 ppm of active bromine. Solutions of this type have been found to have greater stability than a commercially-available solution made from the same components containing 148,600 ppm of active bromine. Also described are new, water-soluble, solid state biocidal products formed by removing the water from solutions made in water from (a) and (b) irrespective of the initial concentration of active bromine. Removal of water can be accomplished by flashing or distillation at reduced pressure or preferably by spray drying. Such solid state products are typically in the form of powders or small particles, but can be compacted into larger forms preferably with the aid of one or more suitable binding agents.

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