Khoom Taw qhia
| Potassium bromate Cov ntaub ntawv yooj yim |
| Kev piav qhia Cov Khoom Siv Tshuaj Siv Kev Npaj Toxicity thiab Carcinogenicity References |
| Khoom npe: | Potassium bromate |
| Synonyms: | Potassium bronlate; Potassium bromate, 99.5%, rau kev tsom xam; Potassium bromate, rau kev tsom xam; Potassium broMate, 1/60 M tov hauv H2O; Potassium bromate, 99+%, ntshiab ntshiab; Potassium bromate, ACS min; Potassium bromate, qib reagent, ACS, ISO; Potassium bromate, tov 1/60 mol / l (0,1 N) |
| CAS: | 7758-01-2 |
| MF: | BrKO 3 |
| MW: | 167 |
| EINECS: | 231-829-8 |
| Khoom Categories: | Inorganics; Halogenated SolutionsVolumetric Solutions; N - RSynthetic Reagents; Salt Solutions; Titration; Volumetric Solutions; Analytical Reagents rau Kev Siv; OP, Puriss pa ACS; Puriss pa ACS; Los ntawm Cov Khoom Siv; Concentrates (xws li FIXANAL); Halogenated Concentrates FIXANAL centrates ); Cov Khoom Siv Sodium thiosulfateTitration; Salt Concentrates; ACS QibSynthetic Reagents; Cov Tshuaj Tseem Ceeb; Inorganic Salts; Potassium; Routine Reagents; Synthetic Reagents; 7758-01-2 |
| Mol File: | 7758-01-2.mol |
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| Potassium Bromate Chemical Properties |
| Melting point | 350 degree |
| ceev | 3.27 |
| cia temp. | Khaws hauv qab +30 degree . |
| solubility | Potassium bromate yog soluble hauv dej (7.5 g / 100 mL ntawm 25 degree; 49.8 g / 100 mL ntawm 100 degree), me ntsis soluble hauv ethanol, thiab yuav luag insoluble hauv acetone; nws ruaj khov heev thaum yaj hauv dej ntawm chav tsev kub. |
| daim ntawv | Hmoov / Khoom |
| Specific Gravity | 3.27 |
| xim | Dawb crystals los yog granules |
| PH | 5.0-90 (25 degree, 50mg/mL hauv H2O) |
| Dej Solubility | 70 g/L (20 ºC) |
| Merck | 14,7617 |
| Kev ruaj ntseg: | Muaj zog oxidizer - kev sib cuag nrog cov khoom siv hluav taws xob tuaj yeem ua rau hluav taws. Incompatible nrog combustible khoom, organics, txo cov neeg sawv cev, aluminium, finely hmoov hlau. |
| CAS DataBase Reference | 7758-01-2(CAS DataBase Reference) |
| IARC | 2B (Vol. Sup 7, 73) 1999 |
| EPA Tshuaj Registry System | Potassium bromate (7758-01-2) |
| Cov ntaub ntawv kev nyab xeeb |
| Hazard Codes | O,T |
| Risk Statements | 45-9-25-22 |
| Cov lus hais txog kev nyab xeeb | 53-45 |
| RIDADR | UN 1484 5.1/PG 2 |
| WGK Germany | 3 |
| RTECS | EF 8725 000 |
| TSCA | Yog lawm |
| HazardClass | 5.1 |
| PackingGroup | II |
| HS Code | 28299000 |
| Cov Ntaub Ntawv Muaj Xwm Ceev | 7758-01-2( Cov ntaub ntawv muaj phom sij) |
| Toxicity | LD50 qhov ncauj hauv Luav: 157 mg / kg |
| MSDS Cov Ntaub Ntawv |
| Tus kws kho mob | Lus |
|---|---|
| SigmaAldrich | Lus Askiv |
| ACROS | Lus Askiv |
| ALFA | Lus Askiv |
| Potassium bromate Siv Thiab Synthesis |
| Kev piav qhia | Potassium bromate yog cov poov tshuaj ntsev ntawm bromate. Nws yog feem ntau siv hauv Tebchaws Meskas ua cov hmoov nplej txhim kho. Nws ua kom muaj zog lub khob noom cookie thiab tso cai rau siab dua. Potassium bromate (KBrO3) yog tus neeg sawv cev oxidizing uas tau siv los ua khoom noj khoom haus, feem ntau hauv cov txheej txheem ua khob cij. Txawm li cas los xij, nws tau pom tias nws yog tus neeg sawv cev carcinogenic. Tus neeg sawv cev yog carcinogenic nyob rau hauv nas thiab nephrotoxic nyob rau hauv ob leeg txiv neej thiab cov tsiaj sim thaum muab qhov ncauj. Nws tau raug pom tias KBrO3 induces lub raum cell hlav, mesotheliomas ntawm peritoneum, thiab follicular cell hlav ntawm cov thyroid. Tsis tas li ntawd, cov kev sim uas tsom mus rau kev nthuav tawm cov qauv ntawm cov kab mob carcinogenic tau qhia tias KrO3 yog cov kab mob ua kom tiav, muaj ob qho tib si pib thiab txhawb kev ua ub no rau nas raum mob qog noj ntshav. |
| Chemical Properties | Potassium bromate yog siv lead ua dawb, granules lossis hmoov, uas tsis muaj xim, tsis muaj ntxhiab, thiab tsis qab. Nws tsis muaj nqi kho mob tab sis ntxiv rau hmoov nplej raws li tus neeg sawv cev maturing, ua khob noom cookie, ntses muab tshuaj txhuam raws li lub tshuab txias, thiab tseem rau npias lossis cheese (Chipman 1988). Nws kuj tau siv los ua cov khoom siv hauv cov plaub hau txias yoj daws (Ueno 2000). Potassium bromate yog ib yam khoom uas muaj vapor ntom ntawm 5.8 (cua=1) thiab ntom ntawm 3.27 (gcm3) thiab thaum sib cuag nrog cov khoom siv hluav taws xob tuaj yeem ua rau hluav taws. Nws yog incompatible nrog organics, txo cov neeg sawv cev, txhuas, thiab hmoov zoo hlau (USEPA 1993). Thaum rhuab, nws tsim cov pa phem ntawm bromine (RCC 1999).Nws muaj ib qho infinite solubility nyob rau hauv dej, thiab nyob rau hauv cov dej haus pH, nws yuav tsum muaj tsuas yog nyob rau hauv daim ntawv ionic (USEPA 1998a). Qhov teeb meem ntawm cov poov tshuaj bromate pib nrog ozonation ntawm cov dej haus los tsim bromate raws li ib tug loj los ntawm cov khoom (WHO (1993). Thaum kev tshawb fawb tau ua kom paub meej tias kev nyab xeeb ntawm ozonated dej, nws tau pom tias poov tshuaj bromate ua rau lub raum mob cancer hauv nas thaum lawv. Haus dej nrog poov tshuaj bromate.Tom qab qhov kev tshawb pom no, ntau lub tebchaws, Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv thiab Lub Koom Haum tau pib txwv tsis pub siv cov poov tshuaj bromate (NAFDAC, 2003) Qee lub tebchaws uas tau txwv tsis pub muaj cov poov tshuaj bromate suav nrog United Kingdom xyoo 1990 thiab Canada xyoo 1994. Lwm lub tebchaws uas muaj cov poov tshuaj bromate tau raug tshem tawm los ntawm cov npe ntawm cov khoom noj tau tso cai yog Belgium, Greece, Norway, Denmark, Spain, Portugal, Nyiv, thiab Switzerland (NAFDAC 2003 WHO kuj txwv tsis pub siv cov poov tshuaj bromate hauv 1993). |
| Siv | Potassium bromate (KBrO3) feem ntau yog siv los ua tus neeg sawv cev rau cov hmoov nplej thiab ua khob noom cookie txias. Nws tau lees paub tias yog ib qho ntawm cov khob noom cookie zoo tshaj plaws hauv kev lag luam bakery. Cov pov thawj tshawb fawb tau tshwm sim hauv xyoo 1990, cuam tshuam bromate ua cov kab mob carcinogen. Hauv kev teb rau qhov muaj peev xwm txaus ntshai, United Nations Joint Food and Agricultural Organization thiab World Heath Organisation tau txiav txim siab tshem tawm cov poov tshuaj bromide los ntawm cov npe ntawm cov khoom siv hmoov nplej uas siv tau. Raws li kev siv tsis yog khoom noj khoom haus, KBrO3 tau raug qhia ua tus neeg sawv cev oxidizing, tus qauv tseem ceeb, thiab tus neeg sawv cev brominating hauv kev tshuaj ntsuam chemistry. Nws cov cuab yeej oxidizing tau ntxiv rau hauv tsev mus tas li-yoj neutralizing tebchaw ntawm qhov siab ntawm 5 txog 25% ntawm pH 4 txog 9, nrog rau sodium bromate, sodium perborate, lossis hydrogen peroxide. |
| Kev npaj | Potassium bromate tuaj yeem tsim tau los ntawm kev hla bromine los ntawm kev daws cov poov tshuaj hydroxide. Txawm li cas los xij, qhov sib xyaw ua ke yog tsim los ntawm cov txheej txheem loj hauv kev lag luam electrolytic. |
| Toxicity thiab carcinogenicity | Potassium bromate tau siv los ua hmoov nplej rau ntau tshaj 80 xyoo. Nws yog ib qho muaj zog oxidizing tus neeg sawv cev thiab nws tau paub tias nws yog carcinogenic. Thaum xub thawj, poov tshuaj bromate tau xav tias yuav ua rau muaj kev cuam tshuam tag nrho ntawm kev ci. Txawm li cas los xij, kev sim tau pom tias cov kab ntawm nws muaj sia nyob rau hauv cov khoom tiav. Tom qab xyoo 1990, tsoomfwv Askiv tau hloov txoj cai kom tshem tawm cov poov tshuaj bromate ntawm qhob cij. Qhov kev txav no yog qhov tseeb hauv qhov xwm txheej. Nws yog qhov yooj yim vim tias feem ntau ntawm EU tsis tso cai rau cov poov tshuaj bromate thiab nws txuas ntxiv siv hauv British plaub yog ib qho bar nkag mus rau EU kev lag luam. Food Safety and Standards Authority of India (FSSAI) tau hais kom cov tuam txhab tsim khoom noj khoom haus kom tsis txhob siv cov poov tshuaj bromate ua ib qho ntxiv. Lub teb chaws tus tswj hwm zaub mov apex tau qhia meej tias nws siv los ua ib qho ntxiv hauv cov khoom noj khoom haus yuav tsis raug tso cai nyob rau txhua qhov xwm txheej. Tsuas yog Tebchaws Meskas Lub Chaw Tswj Xyuas Khoom Noj thiab Tshuaj (USFDA) tso cai siv cov poov tshuaj bromate. Nws kuj yog siv los ntawm cov hmoov nplej rau cov hmoov nplej ua kom zoo. Tab sis raws li USFDA txoj cai, kev siv cov poov tshuaj bromate raug tso cai nyob rau hauv ib qho kev txwv, piv txwv li 0.0075 ib feem rau txhua 100 qhov chaw los ntawm qhov hnyav ntawm hmoov siv. Potassium bromate yog cais raws li Qeb 2B carcinogen. Nws suav nrog hauv Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv Ntiaj Teb (WHO) cov npe ntawm cov khoom xyaw ua rau mob qog noj ntshav. |
| Cov ntaub ntawv | [1]Ekop, AS, IB Obot, and EN Ikpatt. "Cov khoom tiv thaiv kev noj qab haus huv thiab cov ntsiab lus ntawm cov poov tshuaj Bromate hauv cov khob cij thiab hmoov nplej hauv Uyo Metropolis, Nigeria." Phau ntawv Journal of Chemistry 5.4(2008):736-741. [2]Kurokawa, Y, et al. "Carcinogenicity ntawm poov tshuaj bromate tswj qhov ncauj rau F344 nas." Phau ntawv Journal ntawm National Cancer Institute 71.5(1983):965-72. [3]Kurokawa, Y, et al. "Toxicity and carcinogenicity of potassium bromate--ib lub raum carcinogen tshiab." Environmental Health Perspectives 87.1(1990): 309. |
| Chemical Properties | Potassium bromate yog dawb crystalline khoom. |
| Siv | Potassium Bromate yog lub khob noom cookie txias uas muaj xws li dawb crystals lossis hmoov thiab soluble hauv dej. nws muaj nyob rau hauv daim ntawv anhydrous li dawb granular hmoov thiab nyob rau hauv daim ntawv hydrated li me me dawb crystals los yog granules. nws yog siv rau hnub nyoog thiab txhim kho cov khoom ci ntawm hmoov. Nws yog siv nrog cov poov tshuaj iodate thiab azodicarbon-amide los hloov cov protein nyob rau hauv cov hmoov nplej los txhawb cov khoom xav tau ntawm loaf ntim thiab cov duab. nws yog siv rau hauv cov khoom ci. |
| Siv | Nws yog siv nyob rau hauv oxidizing tus neeg sawv cev nyob rau hauv acid daws. |
| Siv | Bread- thiab hmoov-txhim kho tus neeg sawv cev; hauv analytical chemistry. |
| Txhais | ChEBI: Potassium bromate yog poov tshuaj ntsev thiab ntsev bromate. Nws muaj lub luag haujlwm ua cov hmoov nplej kho. |
| Kev piav qhia dav dav | Ib tug dawb crystalline khoom. |
| Cua & Dej Reactions | Dej soluble. |
| Reactivity Profile | Potassium bromate yog ib qho muaj zog oxidizing tus neeg sawv cev. Ua cov khoom sib tov sib xyaw nrog cov khoom siv hluav taws xob. Cov khoom sib tov zoo li no tuaj yeem tawg tau yog tias cov khoom siv hluav taws xob sib xyaw ua kom zoo sib xyaw thiab feem ntau ignitable los ntawm kev sib txhuam. Ib qho kev sib xyaw ua ke nrog cov hmoov txhuas sib xyaw ua kom tawg tuaj yeem tawg los ntawm tshav kub, percussion, thiab kev sib txhuam [Meller 2: 310. 1946-47]. Reacts explosively nrog selenium [Meller 2 Supp1: 763. 1956] ib. Lub sij hawm raug hluav taws kub los yog cua sov tuaj yeem ua rau tawg. |
| Hazard | Cov phom sij txaus ntshai nyob rau hauv kev sib cuag nrog cov khoom siv organic, muaj zog irritant. Ua tau carcinogen. |
| Health Hazard | Kev nqus tau, noj lossis kev sib cuag (tawv nqaij, qhov muag) nrog cov vapors lossis khoom siv yuav ua rau raug mob hnyav, kub hnyiab lossis tuag. Hluav taws yuav ua rau khaus, corrosive thiab/los yog cov pa phem. Cov dej ntws los ntawm kev tswj hluav taws kub lossis dej dilution tuaj yeem ua rau muaj kuab paug. |
| Hluav Taws Xob | Cov tshuaj no yuav ua kom kub hnyiab thaum koom nrog hluav taws. Ib txhia yuav decompose explosively thaum rhuab los yog koom nyob rau hauv hluav taws. Tej zaum yuav tawg los ntawm tshav kub los yog paug. Qee tus yuav hnov mob heev nrog hydrocarbons (roj). Tej zaum ignites combustibles (ntoo, ntawv, roj, khaub ncaws, thiab lwm yam). Cov thawv ntim khoom tuaj yeem tawg thaum cua sov. Kev khiav tawm tuaj yeem tsim hluav taws kub lossis tawg. |
| Kev ruaj ntseg Profile | Cov ntaub ntawv pov thawj carcinogen nrog kev sim cov ntaub ntawv carcinogenic. Ib qho tshuaj lom los ntawm kev noj. Lub zog oxidizer. Ib qho irritant rau ntawm daim tawv nqaij, qhov muag, thiab mucous daim nyias nyias. Cov ntaub ntawv hloov pauv tau tshaj tawm. Wxtures nrog sulfur yuav ignite. Cov tshuaj tiv thaiv hnyav nrog Al, Al + dmitrotoluene @ 290 degree, As, C, Cu, Pb (C2H3O2) 2, hlau sulfides, organic teeb meem, P, S. Aqueous daws hnov mob hnyav nrog selenium. Thaum rhuab mus rau decomposition nws emits cov pa phem heev ntawm Hom K2O. Saib BROMIDES thiab. |
| Ntxim yuav nphav raug | Potassium bromate yog siv los ua tsiaj pub additive, zaub mov additive; tsw thiab ntim khoom; raws li kev kuaj reagent; tus neeg sawv cev oxidizing. |
| Kev xa khoom | UN1479 Potassium bromate, Hazard Class: 5.1; Cov ntawv lo: 5.1-Oxidizer. |
| Txoj kev Purification | Crystallize KBrO3 los ntawm distilled H2O (2mL/g) ntawm 100o thiab 0o. Txhawm rau tshem tawm cov kab mob bromide, ib qho 5% tov hauv distilled H2O, txias rau 10o, yog npuas nrog gaseous chlorine rau 2 teev, ces lim thiab muab rho tawm nrog reagent qib CCl4 kom txog thaum tsis muaj xim thiab tsis muaj ntxhiab. Tom qab evaporating lub aqueous theem mus txog ib nrab ntawm nws ntim, nws yog txias dua maj mam mus txog 10o. Cov crystalline KrO3 uas sib cais, yog ntxuav nrog 95% EtOH thiab qhuav hauv lub tshuab nqus tsev [Boyd et al. J Am Chem Soc 74 237 1952]. Lwm txoj hauv kev kom tshem tawm Br-ions yog los ntawm kev nplawm ob peb zaug hauv MeOH thiab tom qab ntawd ziab ntawm 150o [Field & Boyd J Phys Chem 89 3767 1985]. |
| Kev tsis sib haum xeeb | Lub zog oxidizer.Tshuaj tiv thaiv nrog ntau lub tebchaw, suav nrog txo cov neeg ua haujlwm; chemically active hlau; combustible cov ntaub ntawv, muaj zog acids, alkaline ntiaj teb sulfides, txhuas carbides, txhuas, amines, calcium sulfide, carbides, chlorine trifluoride, glycerin, hydrides, hydrochloric acid, hydrogen peroxide, hydrogen sulfide, hydroxylamine, magnesium, hlau hmoov, hlau sulfides, molybdenum, phenylhydrazine, phosphorous liab / kev sib txhuam, phosphorous trichloride, silicon, sulfides, sulfur, sulfur dioxide, sulfur / kev sib txhuam, sulfuric acid, tungsten, hydrogen trisulfide. Incompatible nrog aluminium, tooj liab. |
| Potassium bromate Kev Npaj Cov Khoom Siv Thiab Cov Khoom Raw |
| Cov khoom siv raw | Government regulation-->Potassium hydroxide-->Potassium chloride-->Barium sulfate-->Potassium sulfate-->Barium chloride-->Potassium bromide-->Ampicillin-->Sodium bromate-->BARIUM BROMATE-->MAGNESIUM BROMATE-->2(1H)-Pyrimidinone, 4-amino-1-tetrahydro-6-(hydroxymethyl)-2-phenylfuro3,4-d-1,3-dioxol-4-yl--->Bromine chloride-->Potassium chlorate-->Ozone |
| Cov khoom npaj | 7-Chloro-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxoquinoline-3-carboxylic acid-->2,4-Dichloro-5-fluoro-3-methoxybenzoyl chloride-->2,4-DICHLORO-5-FLUORO-3-METHOXYBENZOIC ACID-->1-(2,4-DICHLORO-5-FLUORO-3-METHOXYPHENYL)ETHANONE-->3-BROMO-2,6-DICHLORO-5-FLUORO-1-METHOXYBENZENE-->1-AMINO-2,4-DICHLORO-5-FLUORO-3-METHOXYBENZENE-->2,4-DICHLORO-5-FLUORO-3-METHOXYNITRO-BENZENE-->3-BROMO-2,4-DICHLORO-5-FLUORONITROBENZENE-->1-Iodonaphthalene-->Dess-Martin periodinane-->2-Iodoxybenzoic acid-->Benzilic acid-->1-HYDROXY-2-BUTANONE-->Methyl benzilate |
Cim npe nrov: Tuam Tshoj potassium bromate manufacturers, lwm tus neeg, Hoobkas
Tug: Sodium Bromate
Tom ntej: Hypophosphorous Acid
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