Xyoo 1836, sawv thawj npaj sulfamic acid los ntawm kev ua kom zoo nkauj nrog hydrogen sulfide.
Xyoo 1878, Berglund tau txais Purer sulfamic acid.
Sulfamic acidCAS Tsis muaj: 5329-14-6yog cov acorganic cov acid tsim los ntawm hloov cov pab pawg hydroxyl ntawm sulfuric acid nrog cov amino pab pawg. Tshuaj mis mis yog nh2so3h, thiab lub cev hnyav molecular yog 97.09. Rau dej thiab kua ammonia, ntawm chav sov, tsuav nws tau khaws cia qhuav thiab tsis muaj kev sib cuag nrog dej, khoom sulfamic acid tsis nqus noo noo thiab yog qhov ruaj khov.
Cov tshuaj aqueous ntawm sulfamic acid muaj acidity acidity li hydrochloric acid thiab sulfuric acid, yog li nws tseem yog hu ua khoom sulfuric acid. Nws muaj cov yam ntxwv ntawm cov tsis yog volatile, tsis muaj ntxhiab thiab tsis muaj tshuaj lom rau tib neeg lub cev. Plua plav lossis kev daws teeb meem rau lub qhov muag thiab tawv nqaij thiab tuaj yeem ua rau kub nyhiab, qhov nyiaj tau siab tshaj plaws yog 10 mg / m 3. Sulfamic acid tuaj yeem siv los ua ke cov tshuaj tua kab, cov khoom qab zib hluavtaws, cov tshuaj tiv thaiv cov tshuaj tiv thaiv hlau, thiab lwm yam yog cov khoom siv raw tshuaj.
Thaum xyoo 1930, cov neeg tau pib them sai sai rau kev sim tshawb fawb txog kev lag luam. Vim muaj kev nce qib zuj zus ntawm sulfamic acid, nws kev lag luam kev lag luam tau tsim ntxiv nyob rau xyoo 1950. Tebchaws Asmeskas thawj zaug tau pom kev lag luam ntau lawm nyob rau hauv lub xyoo 1960s thiab thaum ntxov xyoo 1970, nrog cov nplai ntawm kilotons. Tuam Tshoj tau pib tshawb fawb nyob rau xyoo 1970, feem ntau yog siv urea thiab oleum li cov ntaub ntawv raw los tsim cov kua qaub sulfamic.
Daim ntawv thov cov chaw ntawm sulfamic acid
1. Ntxuav tus neeg sawv cev
Sulfamic acidKev tu tus neeg saib xyuas muaj ntau cov kev siv thiab tuaj yeem siv los ntxuav cov roj ntxuav, cov hws, kev hloov pauv kub, tsho thiab cov tshuaj siv hluav taws xob. Nws yog siv nyob rau hauv Breweries kom tshem tawm iav-lined cia tso tsheb hlau luam, thiab qhib cov khoom mos txias, thiab cov khaubncaws sab nraud povtseg ntawm cov ntoo tawg paj; kom huv evaporators hauv Enamel Cov Chaw Tsim Tshuaj thiab Khoom Siv hauv cov ntawv mills; Hauv cov cua txias, nws tuaj yeem tshem tawm cov tshuab cua txias thiab evaporative condensers. xeb thiab nplai; Nws tuaj yeem siv tau los ntawm cov nkoj hiav txwv kom tshem algae thiab nplai hauv dej hiav txwv Evaporators (cov khoom siv distillation), kev hloov cua sov), cov cua sov kub; Nws tuaj yeem ntxuav cov lauj kaub, khoom siv hluav taws xob, khoom ntxhua khaub ncaws NTXUAV MECHNCHISMs, cov nyiaj seem, cov vuas luaj, tej hub vuas luaj, tej hub Vuas,
Nplai ntawm cov zaub mov thiab cov khoom siv mis ua; Tshem tawm cov protein tso tawm ntawm cov zom mov thiab cov nyiaj tso rau ntawm cov menyuam sterilizers tau siv hauv cov nqaij tshiab, zaub thiab ua yeeb yaj kiab. Tsoomfwv Meskas lub chaw ua liaj ua teb tso ua liaj ua teb tso cai ua cov kua qaub tu tus neeg sawv cev hauv cov nqaij tshiab, nqaij qaib, cov lag luam ua qe.
2. Textile kev lag luam
Cov kua qaub sulfamic tuaj yeem siv ua tus ntxhiab kom ntau tshaj nyob rau hauv cov tshuaj tiv thaiv flasiles, thiab raws li cov xov paj yas thiab lwm yam kev lag luam hauv cov ntawv lag luam.
3. Daim Ntawv Kev Lag Luam
Cov kua qaub sulfamic tuaj yeem siv los ua cov tshuaj dawb, uas tuaj yeem txo lossis tshem tawm cov tshuaj pleev cov hlau, kom ua kom cov tshuaj tiv thaiv ntawm cov tshuaj pleev xim rau ntawm cov ntxaij vab tshaus. , Txhim kho pulp lub zog thiab whiteness.
4. Kev lag luam roj av
Cov kua qaub sulfamic tuaj yeem siv los thaiv cov roj roj thiab txhim kho cov kab ntawm cov roj roj. Cov sulfamic acid daws tau txhaj rau hauv cov carbonate pob zeb roj-ua cov txheej txheej pob zeb, vim tias cov pob zeb txheej ua kom tsis txhob muaj cov roj teeb ntawm cov khoom xa tawm los ntawm cov tshuaj tiv thaiv.
Tus nqi kho mob me ntsis siab dua li ntawm hydrochloric acid, tab sis cov roj ntau lawm yog ob npaug. Tsoomfwv Meskas siv cov poov tshuaj glycolate 48.5%, sulfamic acid 3.4%. Qhov {0.}}}}}}}}}}}%% Aqu%% aqu%%}%% aqu%% aquing in aqu well in hauv cov roj zoo casing zoo, thiab lub sijhawm kho yog li 30 teev.
5. Ua liaj / teb
Sulfamic acid thiab ammonium sulfamate tau xub tsim ua tshuaj tua kab. Lawv tau hais tias kom muaj kev sib cuag lom tau lom thaum thov mus rau cov nroj tsuag ncaj qha, thiab txiv neej-tua thaum ua ntawv thov rau av.
Xyoo 1978 hauv Guangdong xeev, kuv lub teb chaws, cov nyhuv ntawm sulfamic acid on txiv neej-tua cov nyhuv ntawm cov nplej tau zoo dua li ntawm lwm cov ntsev. Thaum txau ntawm kev xav ntawm 0. {}}}}}}}}}}}, Txiv neej-tua tus nqi mus txog 95% mus rau 100%. Cov nyhuv tsis nyob ruaj khov, thiab nws yog qhov puas tsuaj rau cov tshuaj. Lub herbicidal concentration ntawm sulfamic acid feem ntau yog 75 g / live cov khoom xyaw.
6. Electroplating daws
Cov pa roj sulfamic feem ntau yog siv hauv kub plating lossis alloy plating. Cov kev daws teeb meem electroplating daws rau kub, nyiaj thiab kub-nyiaj alloy plating muaj {} g ntawm sulfamic acid ib litre dej. Ib qho kev hloov kho cov nyiaj ntawm cov nyiaj ntawm cov poj niam cov khaub ncaws muaj 125 g ntawm sulfamic acid ib li dej, ua rau muaj cov nyiaj ci ntsa iab plating. Nyob rau hauv cov tshiab aqueous kub plating tov, alkali hlau sulfamate, ammonium sulfamate lossis sulfamic acid tuaj yeem siv raws li conductions thiab buffing sib txuas.
Thaum rov zoo los ntawm Nickel plating pov tseg kua, nws yog adsorbed nrog cation sib pauv resin thiab tom qab ntawd cov adsorbed desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed yog desorbed thiab lub resin yog reseferated. Piv txwv li, kho 4 {{0 0 plm ni electroplating cov kuab khib, siv 500 g / l thiab niso {6} g / l. Thaum cov ntu npib tsib xee yog kho, Nickel-on-Nickel plating yuav tsum muaj, thiab 100 g / l sulfamic acid tuaj yeem siv rau anodizing. Lub npib tsib xee-plated nto ua ntej npib tsib xee-plating uas yuav tsum tau ntxuav nrog 0. 003-0. 1 mol ntawm sulfamic acid daws.
Cov ntsiab lus ntawm sulfamic acid nyob rau hauv lub taub tooj liab plating yog {}} l. Txoj haujlwm ntawm sulfamic acid yog kom cov plating txheej zoo thiab ductile txheej zoo thiab ducosity, thiab nws viscosity yog siab.
Thaum nh2so3h / ir loj dua lossis sib npaug nrog iridium txheej tsis muaj kab nrib pleb, cov ntawv tuab ntawm iridium txheej yog 15 microns, thiab lub zog nplaum yog qhov loj. Cov khoom qhia pom zoo kev ua haujlwm hauv kev tawm tsam cov khoom qias.
Thaum rhodium alloy yog plated ntawm cov nyiaj thiab cov hluav taws xob, cov kua qaub sulfamices yog 100 g / l. Thaum cov tuab tuab ntawm cov txheej yog tsawg dua lossis sib npaug rau 5 microns, nws muaj cov tawv tawv, thiab cov txheej txheem muaj zog yog ci thiab zoo nkauj heev.
Ruden thiab zoo nkauj rhroium hloov txheej txheej ntawm tooj dag muaj siab hardness thiab corrosion tsis kam. Cov tshuaj electroplating muaj cov kua qaub sulfas acid 1 {9}} {{14 {}} mg / amin.
Ltalis tau siv cov hmoov txhuas sulfamate cov chav dej uas tsis muaj kuab paug, uas txo cov pa phem. Muaj ntau cov siv hauv kev lag luam tawm tsam. Cov khoom muaj qhov zoo gloss thiab ua tau zoo heev.
Tshuaj Lom Neeg Tshuaj Ntsuam Xyuas
Hauv cov synthic synthesis, sulfamic acid yog cov kua qaub uas pheej yig, yooj yim kom tau txais thiab muaj kev ruaj khov zoo. Nws muaj cov txiaj ntsig zoo ntawm cov khoom siv hluav taws xob ntawm cov khoom siv estrification nrog cov kua qaub, thiab tsis corrode cov khoom siv. Nyob rau tib lub sijhawm, nws tseem yog cov khoom siv raw rau ua cov khoom siv hluavtaws, tshuaj ntsuab, cov khoom siv tsis zoo, cov khoom siv hluav taws xob ntau dua 99.9% kuj tseem siv tau los ua cov qauv kev daws teeb meem thaum Alkali Sitration.
Kev ruaj ntseg thiab chaw cia khoom
Sulfamic acid muaj tsawg toxicity. Me ntsis khaus rau daim tawv nqaij thiab qhov muag. Cov khoom siv ntau lawm yuav tsum airtight, thiab cov ua haujlwm yuav tsum hnav iav tiv thaiv.
Thaum ob lub qhov muag khaus khaus, yaug nrog dej, thiab muaj mob hnyav, nrhiav kev kho mob. Thaum muaj kev sib cuag tawv nqaij, yaug nrog dej thiab ntxuav kom huv si nrog xab npum. Thaum nkag mus, muab koj lub qhov ncauj tam sim ntawd thiab xa mus rau hauv tsev kho mob rau kev kho mob. Ntim hauv cov thawv ntoo kab nrog polyethylene yas hnab, net hnyav 25 kg ib lub thawv. Khaws rau hauv qhov chaw txias, cua thiab qhuav.
Cov pob yuav tsum tau muab khi, ua tib zoo mloog rau cov dej noo-pov thawj. Tiv thaiv los ntawm nag thiab hnub ci thaum lub sijhawm thauj mus los. Hnav cov ntsej muag roj thiab hnab looj tes thaum siv cov ntaub ntawv khiav dim, cheb los ntawm cov xuab zeb lossis ntxuav nrog dej. Thaum muaj hluav taws, dej, xuab zeb thiab tua hluav taws tua hluav taws tuaj yeem siv los tso tawm hluav taws.
