Sodium Bromide
Hom lag luam: Chaw tsim tshuaj paus / Hoobkas & Lag luam tuam txhab
Cov khoom tseem ceeb: Magnesium Chloride Calcium Chloride, Barium Chloride,
Sodium Metabisulphite, Sodium Bicarbonate
Tus naj npawb ntawm cov neeg ua haujlwm: 150
Xyoo tsim: 2006
Kev Tswj Xyuas Txheej Txheem: ISO 9001
Qhov chaw: Shandong, Suav teb (Mainland)
Lub npe Askiv: Sodium Bromide
Lwm lub npe: Sodium Bromide, Bromide, NaBr
Cov tshuaj formula: NaBr
Molecular Luj: 102.89
CAS Nr .: 7647-15-6
EINECS tus xov tooj: 231-599-9
Dej Solubility: 121g / 100ml / (100 ℃), 90.5g / 100ml (20 ℃) [3]
PIB: 2827510000
Cov ntsiab lus tseem ceeb: 45% kua; 98-99%.
Cov tsos mob: Dawb crystal hmoov
Lub cev muaj zog
1) Cov khoom siv: Cov xim tsis muaj xim dawb lossis dawb granular hmoov.Nws tsis muaj ntxhiab, qab ntsev thiab iab me ntsis.
2) Qhov ceev (g / mL, 25 ° C): 3.203;
3) Melting point (℃): 755;
4) Boiling point (° C, atmospheric siab): 1390;
5) Refractive Performance index: 1.6412;
6) Flash point (° C): 1390
7) Solubility: Nws yog yooj yim soluble nyob rau hauv dej (solubility yog 90.5g / 100ml dej ntawm 20 ° C, solubility yog 121g / 100ml dej ntawm 100 ° C), cov aqueous kua yog nruab nrab thiab conductive.Slightly soluble nyob rau hauv cawv, soluble nyob rau hauv acetonitrile, acetic acid.
8) Vapor siab (806 ° C): 1mmHg.
Cov khoom siv tshuaj
1) Anhydrous sodium bromide crystals precipitate hauv cov tshuaj sodium bromide ntawm 51 ℃, thiab dihydrate yog tsim thaum kub qis dua 51 ℃.
NaBr + 2 h2o = NaBr · 2 H2O
2) Sodium bromide tuaj yeem hloov tau los ntawm cov roj chlorine los muab bromine.
2Br-+Cl2=Br2+2Cl-
3) Sodium bromide reacts nrog concentrated sulfuric acid los tsim bromine, uas yog, nyob rau hauv qhov kev txiav txim ntawm muaj zog oxidizing acid, sodium bromide yuav oxidized thiab dawb los ntawm bromine.
2NaBr + 3H2SO4 (concentrated) = 2NaHSO4 + Br2 + SO2↑ + 2H2O
4) Sodium bromide tuaj yeem cuam tshuam nrog dilute sulfuric acid los tsim hydrogen bromide.
NaBr+H2SO4=HBr+NaHSO4
5) Hauv cov tshuaj aqueous, sodium bromide tuaj yeem hnov mob nrog nyiaj ions los ua lub teeb daj daj nyiaj bromide.
Br - + Ag + = AgBr laug
6) Electrolysis ntawm sodium bromide hauv lub xeev molten los tsim cov roj bromine thiab sodium hlau.
2 energized nabr = 2 na + Br2
7) Sodium bromide aqueous tov tuaj yeem tsim sodium bromate thiab hydrogen los ntawm electrolysis.
NaBr + 3H2O = electrolytic NaBrO3 + 3H2↑
8) Cov tshuaj tiv thaiv kab mob tuaj yeem tshwm sim, xws li cov tshuaj tiv thaiv tseem ceeb los ua bromoethane:
NaBr + - H2SO4 + CH2CH2OH ⇌ NaHSO4 + CH3CH2Br + H2O
Specifications
Specification ntawm Sodium Bromide:
| Cov khoom | Specification |
| Qhov tshwm sim | Ntshiab, tsis muaj xim rau daj ntseg daj |
| Assay(as NaBr)% | 45-47 : kuv |
| PH | 6-8 |
| Turbidity (NTU) | ≤2.5 |
| Specific Gravity | 1.470-1.520 Nws |
| Yam khoom | Specification | |
|
| Export Qib | Duab Qib |
| Qhov tshwm sim | Dawb Crystal | Dawb Crystal |
| Assay(as NaBr)%≥ | 99.0 ua | 99.5 ua |
| Degree ntawm Clearance | Kom xeem dhau | Kom xeem dhau |
| Chloride (raws li CL)%≤ | 0.1 | 0.1 |
| Sulfate (raws li SO4)%≤ | 0.01 ib | 0.005 ib |
| Bromates (raws li BRO3)%≤ | 0.003 ib | 0.001 ib |
| PH (10% tov ntawm 25 ° C) | 5-8 | 5-8 |
| Moisture% | 0.5 | 0.3 |
| Lead (as Pb) %≤ | 0.0005 | 0.0003 |
| Iodide (raws li kuv)%≤ |
| 0.006 ib |
1) Muaj txoj hauv kev
Cov bromine ntau dhau me ntsis yog ncaj qha ntxiv rau saturated sodium hydroxide thermal tov los tsim kom muaj kev sib xyaw ntawm bromide thiab bromate:
3Br2+6NaOH = 5NaBr+NaBrO3+3H2O
Cov sib tov yog evaporated kom qhuav, thiab cov khoom seem seem yog tov nrog toner thiab rhuab kom txo tau cov bromate rau bromide:
NaBrO3 = NaBr + 3 c + 3 co write
Thaum kawg, nws yog yaj nyob rau hauv dej, ces lim thiab crystallized, thiab qhuav ntawm 110 mus rau 130 degrees Celsius.
* Txoj kev no yog txoj kev dav dav ntawm kev npaj bromide los ntawm bromine thiab feem ntau siv hauv kev lag luam.
2) Neutralization txoj kev
Siv sodium bicarbonate raws li raw khoom: yaj sodium bicarbonate hauv dej, thiab tom qab ntawd neutralize nws nrog 35% -40% hydrobromide kom tau sodium bromide tov, uas yog condensed thiab txias rau precipitate sodium bromide dihydrate.Filter, dissolve lub dihydrate nrog ib tug me me ntawm dej, tee bromine dej kom txog rau thaum ib tug xim ntawm bromine sulfide ntawm hydrochloric acid, nws tshwm sim nyob rau hauv ib tug hydrochloric acid. Thaum kub kub, anhydrous crystallization precipitates, thiab tom qab ziab, nws raug xa mus rau lub tshuab ziab khaub ncaws thiab khaws cia rau ntawm 110 rau 1 teev.
Reaction txoj cai: HBr + NAHCO ₃ → NaBr + CO2↑ + H2O
Nrog 40% kua alkali raws li raw khoom: muab hydrobromide acid rau hauv cov tshuaj tiv thaiv lauj kaub, nyob rau hauv tas li nplawm, maj mam ntxiv 40% kua alkali tov, neutralize rau pH7.5 - 8.0, react los tsim sodium bromide tov.Cov sodium bromide tov yog centrifuged thiab lim rau hauv dilute sodium bromide tov tank evaporation tov khoom. 1-2 zaug, mus rau qhov tshwj xeeb lub ntiajteb txawj nqus ntawm 1. 55 ° Be los yog li ntawd, centrifugal pom, pom mus rau hauv concentrated sodium bromide kua cia tank.Tom qab ntawd nias rau hauv lub tank crystallization, nyob rau hauv lub stirring txias crystallization, thiab ces lub crystallization ntawm centrifugal sib cais, cov khoom tiav lawm.Cov kua dej qab zib yog xa rov qab mus rau sodium bromide tank.
Reaction txoj cai: HBr + NaOH → NaBr + H2O
3) Urea txo txoj kev:
Hauv lub tank alkali, cov dej qab zib yog yaj hauv dej kub ntawm qhov kub ntawm 50-60 ° C, thiab tom qab ntawd urea.
yog ntxiv rau yaj 21 ° Be tov.Tom qab ntawd rau hauv qhov txo cov tshuaj tiv thaiv lub lauj kaub, maj mam los ntawm bromine, tswj cov tshuaj tiv thaiv kub ntawm 75-85 ° C, mus rau pH ntawm 6-7, uas yog, kom ncav cuag qhov kawg ntawm cov tshuaj tiv thaiv, nres bromine thiab nplawm, tau sodium bromide tov.
Kho pH mus rau 2 nrog hydrobromic acid, thiab tom qab ntawd kho pH mus rau 6-7 nrog urea thiab sodium hydroxide kom tshem tawm bromate.Cov tshuaj yog rhuab rau boil thiab ib tug saturated tov ntawm barium bromide yog ntxiv ntawm pH6 - 7 kom tshem tawm cov sulfate.Yog hais tias barium ntsev ntau dhau, dilute sulfuric acid yuav tsum tau ntxiv rau cov tshuaj tiv thaiv tom qab tshem tawm. rau 4-6 teev. Tom qab qhov kev daws teeb meem tau pom meej, nws tau lim, evaporated ntawm atmospheric siab, thiab cov khoom nruab nrab tau ntim ob peb zaug. Tsis txhob pub mis rau 2 teev ua ntej crystallization.Kho pH rau 6-7 1 teev ua ntej crystallization.Cov sodium bromide tau muab cais thiab ziab hauv lub tshuab ziab khaub ncaws.
Lub hauv paus ntsiab lus ntawm cov tshuaj tiv thaiv: 3Br2 + 3Na2CO3 + NH2ConH2 = 6NaBr + 4CO2↑ + N2↑ + 2H2O
1) Kev lag luam rhiab heev rau kev npaj cov yeeb yaj kiab sensitizer.
2) nyob rau hauv cov tshuaj rau zus tau tej cov diuretics thiab sedatives, siv rau cov kev kho mob ntawm neurasthenia, neurological insomnia, puas siab puas ntsws excitement, thiab lwm yam.Sedatives dissociate bromide ions nyob rau hauv lub cev thiab muaj ib tug me me inhibitory nyhuv ntawm lub hauv nruab nrab paj hlwb, calming tus so tsis xis nyob thiab zoo siab qaib.Nws yog yooj yim absorbed nyob rau hauv cov nqaij qaib, tab sis exacerbation ntawm kev nyuaj siab. hloov, beaking, txhaj tshuaj, txhaj tshuaj tiv thaiv, ntes, sau ntshav lossis tshuaj lom.
3) Siv rau kev tsim cov txuj lom hluavtaws hauv kev lag luam tshuaj tsw qab.
4) siv los ua tus neeg sawv cev brominating hauv kev lag luam luam ntawv thiab dyeing.
5) Nws kuj tseem siv rau kev txiav txim siab ntawm cadmium, kev npaj cov tshuaj ntxuav tais diav tsis siv neeg, kev tsim cov bromide, organic synthesis, daim phiaj duab thiab lwm yam.
1) Siv rau kev tsom xam thiab kev txiav txim siab ntawm tellurium thiab niobium thiab kev npaj cov tshuaj tsim tawm, kuj siv los ua tus neeg sawv cev txo;
2) Siv los ua tus txiv neej ua fiber ntau stabilizer, ntaub bleaching tus neeg saib xyuas, yees duab tsim, dyeing thiab bleaching deoxidizer, tsw thiab dye txo tus neeg saib xyuas, daim ntawv lignin tshem tawm, thiab lwm yam.
3) Siv los ua ib qho kev tshuaj ntsuam reagent thiab photosensitive resistor khoom;
4) Reductive bleaching agent, uas muaj cov tshuaj bleaching ntawm cov zaub mov thiab muaj zog inhibition nyhuv ntawm oxidase hauv cov zaub mov cog.
5) Kev luam ntawv thiab dyeing kev lag luam raws li deoxidizer thiab tshuaj dawb, siv rau hauv kev ua noj ntawm ntau yam paj rwb ntaub, tuaj yeem tiv thaiv lub zos oxidation ntawm paj rwb fiber ntau thiab cuam tshuam rau lub zog fiber ntau, thiab txhim kho cov xim dawb ntawm cov khoom siv ua noj.Qhov kev lag luam yees duab siv los ua tus tsim tawm.
6) Siv los ntawm kev lag luam textile ua tus stabilizer rau tib neeg tsim fibers.
7) Kev lag luam hluav taws xob yog siv los ua cov duab hluav taws xob.
8) Kev lag luam kev kho dej rau electroplating dej khib nyiab, kev kho dej haus;
9) Siv los ua tshuaj bleach, preservative, loosening agent thiab antioxidant hauv kev lag luam khoom noj khoom haus.
10) Siv los tsim cov cellulose sulfite ester, sodium thiosulfate, organic chemicals, bleached fabrics, thiab lwm yam., kuj siv los txo tus neeg saib xyuas, preservative, dechlorination tus neeg saib xyuas, thiab lwm yam.
11) Lub chaw soj nstuam yog siv los npaj cov sulfur dioxide
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Muaj ntau tshaj 15 xyoo kev ua haujlwm hauv kev tsim Sodiium Bromide;
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vim qhov sib thooj rau cov docks, xyuas kom meej tus nqi sib tw.
1. Yuav tsum muab cia rau hauv qhov chaw qhuav, txias thiab qhov cua zoo.Txhawm rau tiv thaiv lub hnub raug, thiab hluav taws kub thiab kev sib cais, tsis yog nrog ammonia, oxygen, phosphorus, antimony hmoov thiab alkali nyob rau hauv tag nrho cia thiab kev thauj mus los.Tub chips, shavings thiab straw yuav tsum tau khaws cia tseg kom tsis txhob hlawv.
2. Thaum muaj hluav taws kub, cov xuab zeb thiab cov pa roj carbon dioxide tua hluav taws tuaj yeem siv los tua hluav taws.
