Nantong Kezhong Chemical Technology Co., Ltd.: Koj Trustworthy Tert-butyl hydroperoxide Chaw tsim tshuaj paus!
Nantong Kezhong Chemical Technology Co., Ltd. yog tus kws tshaj lij ntawm cov organic peroxides, acyl chloride series thiab cov tshuaj yooj yim.Lub tuam txhab muaj tus kheej ntshuam thiab xa tawm tsim nyog, thiab tau cog lus los muab cov khoom sib tw thiab cov kev daws teeb meem zoo meej rau cov neeg siv hauv tsev thiab txawv teb chaws. Cov khoom muag zoo nyob rau hauv Suav Mainland, Suav Taiwan, Europe, America, India thiab lwm lub teb chaws thiab cheeb tsam.
Kev Pabcuam
Peb tau cog lus los tsim kho peb cov khoom lag luam niaj hnub los muab cov neeg siv khoom txawv teb chaws nrog ntau cov khoom lag luam zoo kom tshaj li cov neeg siv khoom txaus siab. Peb kuj tuaj yeem muab cov kev pabcuam customized raws li cov neeg siv khoom xav tau xws li qhov loj me, xim, tsos, thiab lwm yam.Peb tuaj yeem muab tus nqi zoo tshaj plaws thiab cov khoom zoo.
Zoo Guaranteed
Peb tau txuas ntxiv tshawb nrhiav thiab tsim kho tshiab kom tau raws li qhov xav tau ntawm cov neeg siv khoom sib txawv. Nyob rau tib lub sijhawm, peb ib txwm ua raws li kev tswj hwm nruj kom ntseeg tau tias qhov zoo ntawm txhua yam khoom ua tau raws li cov qauv thoob ntiaj teb.
Kev muag khoom thoob plaws lub tebchaws
Peb tsom rau kev muag khoom hauv kev lag luam txawv teb chaws. Peb cov khoom raug xa tawm mus rau Tebchaws Europe, Amelikas, South East Asia, Middle East thiab lwm thaj chaw, thiab tau txais txiaj ntsig zoo los ntawm cov neeg siv khoom thoob ntiaj teb.
Ntau hom khoom
Peb cov khoom muaj xws li Organic peroxides: Tert-butyl peroxybenzoate, dibenzoyl peroxide, di-tert-butyl peroxide, tert-butyl hydrogen peroxide, 2, 5-dimethyl-2, 5-bis (tert- butylperoxy) hexane, thiab bis (2, 4-dichlorobenzoyl peroxide), tag nrho 5000 tons / xyoo. Acyl chloride series thiab cov tshuaj yooj yim: acryloyl chloride, methacryloyl chloride, p-chlorobenzoyl chloride, benzophenone (qib refined), oxalyl chloride, benzoyl chloride, thiab lwm yam., tag nrho 15000 tons / xyoo.
Peb cov khoom muaj feem xyuam
Oxalyl chloride yog diacyl chloride muab tau los ntawm oxalic acid. Nws yog xim tsis muaj xim fuming kua nrog pungent tsw, uas tuaj yeem npaj los ntawm cov tshuaj tiv thaiv ntawm oxalic acid thiab Phosphorus pentachloride. Nws tuaj yeem decompose hnyav thaum raug dej thiab ethanol. Nws yog corrosive thiab tsim kua muag inducing.Nws tus lej CAS yog 79-37-8. Oxalyl chloride tseem hu ua Oxalyl dichloride thiab Ethanedioyl dichloride.Nws yog siv los ua reagent rau organic synthesis.
Acryloyl Chloride|CAS 814-68-6
Acryloyl chloride yog cov kua tsis muaj xim tsis muaj nplaim taws nrog cov ntxhiab tsw ntxhiab tsw.Nws CAS tus naj npawb yog 814-68-6.Acryloyl chloride yog tshuaj lom, kub heev thiab corrosive.Nws tuaj yeem ua rau kub hnyiab, thiab ua rau lub qhov muag thiab ua pa.
Methacryloyl Chloride|CAS 920-46-7
Methacryloyl chloride yog cov tsis muaj xim, pob tshab, thiab cov kua ntshiab ntshiab.Nws tus lej CAS yog 920-46-7.
Methacryloyl chloride tseem hu ua 2-Methyl-2-Propenoyl chloride.Nws yog cov nplaim taws heev.
DHBP|CAS 78-63-7|2, 5-Dimethyl-2, 5-Di (Tert-Butylperoxy) Hexane
2, 5-Dimethyl-2, 5-di (tert-butylperoxy) hexane yog dialkyl organic peroxide.Nws yog ib qho tsis tshua muaj hluav taws xob, me ntsis daj ntshiab kua. Nws tus lej CAS yog 78-63-7.Nws tuaj yeem diluted nrog hexane, odorless ntxhia roj, isododecane, thiab lwm yam. Nws tuaj yeem diluted nrog inorganic compound lossis polypropylene hmoov.
BPO|CAS 94-36-0|Dibenzoyl Peroxide
Dibenzoyl peroxide yog cov dawb granular, me ntsis iab almond tsw.Nws tus lej CAS yog 94-36-0.Nws yog ib qho muaj zog oxidizer, tsis ruaj tsis khov thiab flammable.Thaum cuam tshuam, rhuab lossis rubbed, nws tuaj yeem tawg.Thaum sulfuric acid ntxiv, combustion tshwm sim.
PAB|CAS 614-45-9|Tert-Butyl Peroxybenzoate
Tert-butyl peroxybenzoate yog cov organic peroxide.Nws tus lej CAS yog 614-45-9.Nws yog xim tsis muaj xim rau cov kua daj me ntsis thiab muaj cov ntxhiab tsw me ntsis.Nws yog insoluble hauv dej thiab soluble hauv cov kuab tshuaj organic.
PAB|CAS 25155-25-3|Bis (Tert-Butyldioxyisopropyl) Benzene
Bis (tert-butyldioxyisopropyl) benzene yog hmoov dawb.Nws tus lej CAS yog 25155-25-3.Nws yog nyob rau hauv qeb ntawm peroxide crosslinking tus neeg ua haujlwm, uas dhau mus dawb radical crosslinking thaum lub sijhawm vulcanization txheej txheem.
TBHP|CAS 75-91-2|Tert-Butyl Hydroperoxide
Tert-butyl hydroperoxide tseem hu ua TBHP.Nws cov yam ntxwv yog qhov zoo thermal stability, kev nyab xeeb siv, thiab yooj yim los tswj. Ntawm qhov kub qis dua 50 degree, nws cov haujlwm tsis hloov pauv ntau hauv peb lub hlis, thiab tsis tas yuav tsum tau ntim khoom khov.
CHP|CAS 80-15-9|Cumene Hydroperoxide
Cumene hydroperoxide yog cov xim tsis muaj xim rau lub teeb daj.Nws tus lej CAS yog 80-15-9.Nws yog ib qho oxidant uas nquag siv. Nws feem ntau yog cov tshuaj uas muaj 80% cumene.Nws tuaj yeem tawg thaum sib xyaw nrog cov tshuaj txo qis, sulfur, phosphorus, thiab lwm yam. Nws yuav tawg thaum cua sov lossis cuam tshuam.
Tert-butyl Hydroperoxide yog dab tsi
Tert-butyl hydroperoxide yog ib qho tsis hloov pauv, cov kua ntshiab uas yog ib qho pib siv rau cov tshuaj tiv thaiv dawb radical.Nws tus lej CAS yog 75-91-2. Tert-butyl hydroperoxide tseem hu ua TBHP.Nws cov yam ntxwv yog qhov zoo thermal stability, kev nyab xeeb siv, thiab yooj yim los tswj. Ntawm qhov kub qis dua 50 degree, nws cov haujlwm tsis hloov pauv ntau hauv peb lub hlis, thiab tsis tas yuav tsum tau ntim khoom khov.
Yuav Paub Txog Tert-butyl hydroperoxide
Chemical Properties
Tert-Butyl hydroperoxide (TBHP) yog cov kua dej dawb uas muaj kev lag luam uas muaj 70% hauv dej; 80% kev daws teeb meem kuj muaj. Nws yog siv los pib cov tshuaj tiv thaiv polymerization thiab hauv cov organic syntheses los qhia cov pab pawg peroxy rau hauv cov molecule. TBHP vapor tuaj yeem kub hnyiab tau thaum tsis muaj huab cua thiab tuaj yeem ua rau kub hnyiab ntawm qhov kub siab lossis qis qis. Fine pos huab / tshuaj tsuag tej zaum yuav combustible ntawm qhov kub thiab txias nyob rau hauv lub qub flash point. Thaum evaporated, cov kua seem yuav ua rau cov ntsiab lus TBHP thiab tuaj yeem ncav cuag qhov tawg (＞ 90%). Cov thawv kaw tuaj yeem tsim kom muaj lub siab sab hauv los ntawm kev degradation ntawm TBHP rau oxygen. TBHP yog ib yam khoom muaj zog heev. Peb hom kev phom sij tseem ceeb ntawm lub cev yog flammability, thermal, thiab decomposition vim muaj paug. Txhawm rau txo cov kev phom sij no, zam kom tsis txhob raug cua sov, hluav taws kub, lossis ib qho xwm txheej uas yuav ua rau cov khoom ua kua. Cia kom deb ntawm tshav kub, sparks, qhib nplaim taws, txawv teb chaws kab mob, combustibles, thiab txo cov neeg ua hauj. Tshawb xyuas cov thawv ntim ntau zaus txhawm rau txheeb xyuas cov pob los yog xau (7a, 125).
Siv
TBHP yog ib qho nruab nrab hauv kev tsim cov propylene oxide thiab t-butyl cawv los ntawm isobutane thiab propylene. Nws yog feem ntau siv los ua tus pib thiab ua tiav catalyst hauv kev daws teeb meem thiab emulsion polymerization txoj kev rau polystyrene thiab polyacrylates. Lwm yam kev siv yog rau polymerization ntawm vinyl chloride thiab yas acetate thiab ua oxidation thiab sulfonation catalyst nyob rau hauv bleaching thiab deodorizing hauj lwm. Nws yog ib qho muaj zog oxidant thiab reacts hnyav nrog combustible thiab txo cov ntaub ntawv, thiab metallic thiab sulfur compounds.
Tert-Butyl hydroperoxide yog siv los ua ib qho pib rau radical polymerization thiab nyob rau hauv ntau yam txheej txheem oxidation xws li sharpless epoxidation. Nws koom nrog osmium catalyzed vicinal hydroxylation ntawm olefins nyob rau hauv alkaline tej yam kev mob. Tsis tas li ntawd, nws yog siv rau hauv catalytic asymmetric oxidation ntawm sulfides rau sulfoxides siv binaphthol ua chiral auxiliary thiab hauv oxidation ntawm dibenzothiophenes. Nws ua lub luag haujlwm tseem ceeb rau kev qhia txog cov pab pawg peroxy hauv cov organic synthesis.
Health Hazard
Tert-Butyl hydroperoxide yog ib qho muaj zog irritant.Floyd thiab Stockinger (1958) tau pom tias daim ntawv thov ncaj qha rau hauv nas tsis ua rau tsis xis nyob tam sim ntawd, tab sis qhov kev ncua sij hawm ntev heev. Cov tsos mob yog erythema thiab edema nyob rau hauv 2-3 hnub. Exposureto 500 mg hauv 24 teev ua rau muaj kev cuam tshuam loj heev rau ntawm daim tawv nqaij luav, thaum yaug 150 mg / min yog qhov hnyav rau qhov muag.
Nws yog ib qho mob toxic; Cov teebmeem no zoo ib yam li cov MEK peroxide. Cov tsos mob los ntawm kev tswj qhov ncauj hauv cov nas muaj zog, tshee, thiab prostration.
LD50 tus nqi, intraperitoneal (rats): 87 mg / kg
LD50 tus nqi, qhov ncauj (rats): 406 mg / kg.
Flammability thiab Explosibility
Tert-Butyl hydroperoxide yog cov kua ua kua thiab cov tshuaj tiv thaiv oxidizing heev. Ntshiab TBHP yog qhov ua rau poob siab thiab tuaj yeem tawg ntawm cua sov. Cov pa roj carbon dioxide lossis cov tshuaj tua hluav taws qhuav yuav tsum tau siv rau kev tua hluav taws uas muaj tert-butyl hydroperoxide.
Mechanism ntawm Action
Cov txheej txheem dav dav ntawm kev hloov pauv hlau-catalyzed oxidative Mannich cov tshuaj tiv thaiv ntawm N, N-dialkyl anilines nrog tert-butyl hydroperoxide (TBHP) raws li cov oxidant muaj tus nqi txiav txim ib qho hluav taws xob hloov pauv (SET) uas tsis sib xws ntawm 4- methoxy- rau 4-cyano-N, N-dimethylanines. Lub tert-butylperoxy radical yog cov oxidant loj nyob rau hauv tus nqi-txiav txim siab SET kauj ruam uas yog ua raws li los ntawm kev sib tw rov qab SET thiab irreversible heterolytic cleavage ntawm cov carbon-hydrogen daim ntawv cog lus ntawm -txoj hauj lwm rau nitrogen. Ib qho thib ob SET ua tiav qhov kev hloov pauv ntawm N, N-dimethylaniline mus rau ib qho iminium ion uas yog tom qab los ntawm cov kuab tshuaj nucleophilic lossis cov oxidant ua ntej tsim Mannich adduct.
Tert-butyl hydroperoxide tuaj yeem ua rau oxidative kev nyuaj siab hauv daim siab mitochondria ntawm qhov tsis tshua muaj siab. Kev puas tsuaj ntawm cov concentrations tsawg ntawm tBHP nyob rau hauv cov chav kawm ntawm pyruvate oxidation nyob rau hauv cais daim siab mitochondria yog tshwm sim los ntawm qhov qhib ntawm lub nonspecific Ca2+-dependent cyclosporin A-sensitive pore nyob rau hauv lub puab mitochondrial membrane.
Kev ruaj ntseg Profile
Muaj tshuaj lom los ntawm kev noj thiab nqus tau pa. Cov tawv nqaij hnyav thiab qhov muag khaus. Cov ntaub ntawv hloov pauv tau tshaj tawm. Nyob rau theem siab tshaj plaws, cov tsos mob tau sau tseg yog kev nyuaj siab loj, tsis sib haum xeeb, thiab cyanosis. Kev tuag yog vim ua pa raug ntes. Qhov phom sij txaus ntshai heev thaum raug tshav kub lossis nplaim taws, lossis los ntawm cov tshuaj tiv thaiv ib puag ncig xws li txo cov khoom siv. Nruab nrab tawg; tuaj yeem tawg thaum lub sijhawm distillation. Cov tshuaj tiv thaiv hnyav nrog cov kab mob acid. Cov tshuaj sib xyaw ua ke tuaj yeem ua rau kub nyhiab ntawm kev sib cuag nrog molecular sieve. Kev sib xyaw nrog kev hloov pauv hlau ntsev tuaj yeem hnov mob hnyav thiab tso pa tawm. Tsim cov tshuaj tsis ruaj khov nrog 1,2-dichloroethane. Txhawm rau tua hluav taws, siv cawv ua npuas ncauj, CO2, tshuaj qhuav. Thaum rhuab mus rau decomposition nws emits pa taws thiab pa taws. Saib kuj PEROXIDES, ORGANIC.
Carcinogenicity
Ib txoj kev tshawb fawb tau ua los ntsuas cov carcinogenicity ntawm TBHP pom tias nws tsis yog carcinogenic thaum siv rau ntawm daim tawv nqaij ntawm nas ntawm 16.6% ntawm peroxide 6 zaug hauv ib lub lis piam rau 45 lub lis piam. Txawm li cas los xij, yog tias nws daim ntawv thov tau ua ntej los ntawm 0.05 mg ntawm 4-nitroquinoline-1-oxide raws li 0.25% tshuaj hauv benzene siv 20 zaug hauv 7 lub lis piam tom qab TBHP (16.6% hauv benzene), tom qab ntawd cov qog nqaij hlav malignant tshwm nyob nruab nrab ntawm hnub 390 thiab 405 ntawm qhov kev sim. Qhov no txhawb txoj kev xav tias peroxides tsis ua tiav cov carcinogens, tab sis tuaj yeem ua raws li kev txhawb nqa. Cov teebmeem ntawm TBHP ntawm kev txhawb nqa thiab tsis txhawb nqa nas epidermal kab lis kev cai ntawm tes tau tshaj tawm los ntawm Muehlematter li al. .
Cia
Tert-butyl hydroperoxide yuav tsum muab cia rau hauv qhov tsaus ntuj ntawm chav tsev kub (tsis txhob tso rau hauv tub yees) cais los ntawm oxidizable compounds, flammable tshuaj, thiab acids. Cov tshuaj tiv thaiv nrog cov tshuaj no yuav tsum tau ua tom qab daim thaiv kev nyab xeeb.
Kev tshuaj ntsuam toxicity
TBHP accelerates oxidation ntawm glutathione thiab txo cov metabolism ntawm sodium hexobarbital nyob rau hauv nas daim siab thiab yog ib tug muaj zog oxidation neeg sawv cev.
Kev tsis sib haum xeeb
Tert-Butyl hydroperoxide thiab concentrated aqueous daws ntawm TBHP hnov mob hnyav nrog cov kua qaub thiab cov ntsev ntawm qee yam hlau, suav nrog, tshwj xeeb, manganese, hlau, thiab cobalt. Kev sib xyaw anhydrous tert-butyl hydroperoxide nrog cov organic thiab oxidized yooj yim tuaj yeem ua rau tawg thiab tawg. TBHP tuaj yeem pib polymerization ntawm qee yam olefins.
Pov tseg pov tseg
Ntau tshaj tert-butyl hydroperoxide thiab cov khoom pov tseg uas muaj cov tshuaj no yuav tsum muab tso rau hauv lub thawv tsim nyog, sau kom meej meej, thiab ua raws li koj lub koom haum cov txheej txheem pov tseg. TBHP feem ntau yog siv hauv kev lag luam tshuaj raws li cov khoom pib (lossis nruab nrab) thiab ua cov khoom siv rov ua dua tshiab (catalyst, pib lossis kho tus neeg sawv cev).
epoxidation ntawm propylene rau propylene oxide (intermediate);
Dawb radical pib rau polymerization, copolymerisations, graft polymerizations thiab curing ntawm polymers (yas kev lag luam);
Dawb radical pib rau polymerise unsaturated monomers, feem ntau mus rau siab polymers. Feem ntau yog siv los ntawm manufacturers ntawm hluavtaws lattices los yog dej borne dispersions. Kuj tseem siv los ua ib feem ntawm catalysts systems rau unsaturated polyester resins (resin kev lag luam);
Lub synthesis ntawm lwm cov organic peroxy molecules (raws li ib tug precursor ntawm pib) xws li perester, persulphate, dialkyl peroxide thiab perketal derivatives;
Kev npaj cov tshuaj tshwj xeeb yuav tsum tau ua los ntawm cov tshuaj zoo thiab kev ua haujlwm tshuaj lom neeg, xws li tshuaj thiab agrochemicals (fungicides).
Kev siv los ua cov khoom siv hardeners rau plastics. Cov khoom no muaj 5 - 20 % TBHP.
Toxicity
Muaj tshuaj lom los ntawm kev nqus tau thiab noj thiab ua rau lub qhov muag thiab tawv nqaij mob hnyav heev. T-Butyl hydroperoxide tsis tau pom tias yog carcinogenic los yog qhia txog kev yug menyuam lossis kev loj hlob toxicity hauv tib neeg.
Flammability thiab Explosibility
Tert-Butyl hydroperoxide yog cov kua ua kua thiab cov tshuaj tiv thaiv oxidizing heev. Ntshiab TBHP yog qhov ua rau poob siab thiab tuaj yeem tawg ntawm cua sov. Cov pa roj carbon dioxide lossis cov tshuaj tua hluav taws qhuav yuav tsum tau siv rau kev tua hluav taws uas muaj tert-butyl hydroperoxide.
Reactivity thiab Incompatibility
Tert-Butyl hydroperoxide thiab concentrated aqueous daws ntawm TBHP hnov mob hnyav nrog cov kua qaub thiab cov ntsev ntawm qee yam hlau, suav nrog, tshwj xeeb, manganese, hlau, thiab cobalt. Kev sib xyaw anhydrous tert-butyl hydroperoxide nrog cov organic thiab oxidized yooj yim tuaj yeem ua rau tawg thiab tawg. TBHP tuaj yeem pib polymerization ntawm qee yam olefins.
Kev tuav thiab khaws cia ntawm Tert-butyl hydroperoxide
tuav
Safe tuav tswv yim:Khaws kom deb ntawm tshav kub. Cia kom deb ntawm cov nplaim taws, nplaim taws thiab lwm qhov chaw ntawm qhov hluav taws kub. Tsis txhob kov qhov muag, tawv nqaij thiab khaub ncaws. Tsis txhob ua pa vapor lossis huab cua. Siv qhov cua kom txaus. Qhov xav tau rau hauv av thiab kev sib txuas ntawm cov ntim khoom raws li OSHA 29 CFR 1910.106 thiab NFPA 77 yuav tsum raug soj ntsuam rau txhua qhov kev hloov khoom. Ua raws li tag nrho MSDS / daim ntawv lo lus ceeb toom txawm tias tom qab lub thawv ntim tas lawm vim nws tuaj yeem khaws cov khoom seem. Ntxuav kom huv si tom qab tuav. Tsis txhob nqos cov khoom. Siv cov cuab yeej tiv thaiv tus kheej. Tiv thaiv los ntawm kev sib kis. Dispense thiab hloov mus rau hauv ib cheeb tsam cais los ntawm qhov chaw cia khoom. Tsis txhob xa cov khoom siv tsis siv rov qab mus rau lub thawv ntim khoom. Ntxuav cov chaw tiv tauj tom qab tuav. Tshem cov khaub ncaws tsis huv thiab ntxuav ua ntej siv dua. Ntxiv cov accelerators tuaj yeem ua rau muaj zog decomposition.
Cov lus qhia txog kev tiv thaiv hluav taws thiab tawg:Cov thawv uas muaj qhov kub thiab txias tshaj SADT (saib tshooj 10) yuav decompose hnyav.
Cia
Kev xav tau rau thaj chaw cia khoom thiab ntim khoom:Thaum tshav kub kub los yog kis kab mob yuav ua rau muaj kev puas tsuaj decomposition. Khaws cov ntim ntim kom qhuav thiab kaw kom nruj kom tsis txhob muaj dej nqus thiab kis kab mob. Khaws lub thawv kom deb ntawm cov khoom tawg yooj yim thiab tawg. Tiv thaiv los ntawm tshav kub thiab raug tshav ntuj ncaj qha. Khaws rau hauv lub thawv qub.
Thauj thiab khaws cov thawv rau hauv txoj hauj lwm ncaj xwb. Cov vapors seem yuav tawg ntawm qhov hluav taws kub; tsis txhob siv cua sov, txiav, xyaum, zom los yog vuam rau lossis ze ntawm lub thawv no. Cov ntaub ntawv ntxiv: Khaws hauv qab 104 degree F (40 degree). Peroxide residues yuav tsum tsis txhob rov qab mus rau hauv lub thawv qub, txaus ntshai ntawm decomposition!
Cov lus qhia txog kev khaws cia
Tsis txhob khaws cia ua ke nrog: acids, alkalis, txo cov neeg ua haujlwm, ntsev ntsev.
Cia ruaj khov: <40 degree
Cov cuab yeej tiv thaiv tus kheej
Kev tiv thaiv ua pa:Ib qho kev tiv thaiv ua pa uas ua tau raws li OSHA 1910.134.
Z88.2 los yog cov kev cai tseem ceeb ntawm tsoomfwv / cheeb tsam yuav tsum tau ua raws li thaum twg qhov chaw ua haujlwm tau lees paub siv lub tshuab ua pa.
Kev Tiv Thaiv Tes:Siv cov hnab looj tes impermeable. Cov cuab yeej tiv thaiv tus kheej uas muab kev tiv thaiv los tiv thaiv dermal raug rau cov khoom no yog xav tau. Cov hnab looj tes yuav tsum tau kuaj xyuas ua ntej siv. Kev tiv thaiv txhais tes saum toj no yog ua raws li kev paub txog chemistry thiab kev cia siab tias yuav siv cov khoom no tab sis nws yuav tsis tsim nyog rau txhua qhov chaw ua haujlwm. Kev soj ntsuam kev phom sij yuav tsum tau ua ua ntej siv los xyuas kom meej cov hnab looj tes tsim nyog rau ib puag ncig kev ua haujlwm thiab cov txheej txheem ua ntej siv. Kev tsim nyog rau cov chaw ua haujlwm tshwj xeeb yuav tsum tau qhia meej nrog cov tuam txhab cov hnab looj tes tiv thaiv.
Khoom siv hnab looj tes:Butyl roj hmab
Khoom Thickness:0.5 hli
Lub sijhawm tawg:>8 hnu
Kev Tiv Thaiv Qhov Muag:Siv tshuaj txhuam tsom iav los yog daim npog ntsej muag.
Daim tawv nqaij thiab lub cev tiv thaiv:Ib lub da dej nyab xeeb thiab qhov muag ntxuav qhov muag yuav tsum tau yooj yim.
Kev ntsuas huv:Tshem tawm thiab ntxuav cov khaub ncaws tsis huv ua ntej rov siv dua. Ntxuav cov chaw tiv tauj tom qab tuav. Khaws kom deb ntawm cov khoom noj, dej haus thiab cov khoom noj tsiaj. Tag nrho cov cuab yeej tiv thaiv uas tau kis kab mob yuav tsum tau muab ntxuav ua ntej rov siv dua.
FAQ
Cim npe nrov: Tuam Tshoj tert-butyl hydroperoxide manufacturers, lwm tus neeg, Hoobkas
