Inganda zikora inganda za Amerika muri 2019 | Ifu ya Melamine

2019 Ibinure bya Acide Kamere Isoko Itandukanya Isesengura ryakarere, Abakinnyi bakomeye, Gahunda yo Kwagura, Imigendekere yisi yose, ibyinjira ninyungu ziteganijwe kugeza 2025

7. Gupakira byinjiza imiti mubiryo.Antimoni na tin bikoreshwa mubikoresho byo gupakira aho bashobora kwinjira mubiryo. Amafiriti, amabati, amasafuriya hamwe nububiko bifite imiti ishobora kurekurwa muri ibyo biryo murwego rwo hasi. Iyo zinjiye, zitera ibibazo bitandukanye byubuzima.

Niba urimo uhindura imiterere nkigice cyo kuryama mucyumba cyawe, fata umwanya wo kongeramo amayeri meza. Umubaji cyangwa umwubatsi arashobora kubyakira mugihe yubaka inkuta za sitidiyo. Muri sisitemu nini ya master, ushobora no kubaka urukuta rwa sitidiyo kugirango ufashe zone umwanya kandi wongere ububiko mubikorwa. 

Bollini, P., Brunelli, NA, Didas, SA & Jones, CW Dynamics ya CO2 adsorption kuri amine adsorbents. 2. Ubushishozi mubishushanyo mbonera. Ind. Ing. Chem. Res. 51, 15153–15162 (2012).

Cyangwa, dukesha Choo-Choo, umudugudu muto. Igihe twamufunguraga, twapakiye ingurube y'ibiro 60, udusimba tubiri (umuturanyi wanjye wa Texan witwa Jeff yihariye), inkongoro, amafi y'ubururu, kandi - kubera iki atari byo? Natumiye mubyukuri abantu bose nzi kugeza Facebook yantemye, mbasaba kuzana ibinyobwa nimpande zapima inyama (kandi umpe kuruhuka guteka). Igisubizo cyabaye icyamamare: inshuti nabanyamahanga byuzuye kumuhanda, akonje gakungahaye kuri vino n'inzoga, hamwe numunuko wumwotsi wuzuye umunwa winjira mumatafari yose yamabuye yabaturanyi. Muri ibyo byose, naruhutse bidasanzwe - ibi byose nabigenzaga, kandi nabikesha Choo-Choo. Yaba impaka inshuro ebyiri kubiciro. —Matt Gross

Igikombe cyuzuyemo amazi ashyushye, acide nkeya (bisa na kawa) hanyuma hasigara amasaha abiri. Iyi nzira yasubiwemo inshuro zirindwi kuri buri gikombe. Nyuma yo kuzuza icya gatatu n'icya karindwi, amazi muri buri gikombe yapimwe imiti. 

Ibyitegererezo bitatu bya N-bikoporora graphene (Icyitegererezo 1 kugeza 3) hamwe nibintu bya azote bitandukanye byahujwe nuburyo bwa patenti SHS50. Igishushanyo mbonera cyibikoresho byerekanwa byerekanwe ku gishushanyo cya 1. Muburyo busanzwe bwo gutegura icyitegererezo cya 1, garama 8 za karbamide (garama 30 kuri Sample 2 na garama 21 kuri Sample 3) byongewemo ifu ivanze ya 14.4 g ya magnesium na 33.3 g ya calcium karubone hanyuma igasya muri minisiteri muminota 20. Igisubizo cyakomereje ku kintu gikomeye cyashyizwe mu cyuma cya 21.2 L munsi y’ikirere cya dioxyde de carbone ku muvuduko w’ikirere, nkuko bigaragara ku gishushanyo cya 1. Uruvange rw’ibinyabuzima rwatwitswe n’igikoresho cyo gutwika amashanyarazi kigizwe na DC Inkomoko yimbaraga hamwe nubushyuhe bushingiye kumashanyarazi ukoresheje umuriro wa 22 A. Igisubizo cyahise gikwirakwizwa binyuze muruvange mumusaraba kuva hejuru kugeza hasi mubwoko bwumuriro kandi bikarangira iyo umuraba wo gutwika ugeze hepfo. Igicuruzwa kibisi cyirabura cyahanaguwe na acide hydrochloric aside (10 v / v%) hanyuma ikangurwa amasaha abiri kugirango ikureho MgO, CaO nicyuma gisigaye cya Mg. Igicuruzwa noneho cyayunguruwe, kwozwa namazi ya deioni na etanol yuzuye. Amabati yoroheje mubicuruzwa yarushijeho gutandukana ukoresheje centrifuge kuri 1000 rpm muminota 30 no kuyungurura supernatant. Hanyuma, icyitegererezo cyumishijwe mu cyuho kuri 120 ° C mu masaha 24. Mugereranije, icyitegererezo cya graphene pristine (Icyitegererezo 0) nacyo cyateguwe na SHS kuva kuri garama 16 za magnesium na garama 33.3 za calcium karubone, cyari gishingiye ku kigereranyo cya stoichiometric reaction: 2 Mg + CaCO3 = 2 MgO + CaO + C; nta karbamide yatangijwe mubitekerezo kandi ibicuruzwa byakorewe hamwe nkuko byavuzwe haruguru.

Umurongo w'urufatiro: Isukura mu buryo butangaje. Mugihe cyo kwipimisha nakoresheje mugusukura ahabigenewe, kumeza, kurukuta, hasi, ibikombe byimbwa byimbwa, urabyita. Nyuma yo kwipimisha murugo nayikoresheje muri sitidiyo yagurishijwe cyane niruka kuruhande.

Mubyongeyeho, ibyuma byongeramo urumuri kumabara akomeye nka safiro na ruby ​​hamwe na Epicurious cookware na colanders.

Aho ibyinshi muri picnicware ya melamine twagerageje biranga ibimera n’ibinyabuzima byo mu Bwongereza, Inzu ya Sainsbury yakuye imbaraga muri Afurika kugira ngo ikusanyirizwe hamwe. Byizewe bihendutse ariko bifite ireme, twakundaga imiterere yimiryango yumukara, umweru na zahabu bivanze namashusho yinyamaswa. Isahani yo kuruhande hamwe na seriveri ya crudités byakozwe muburyo budasanzwe kugirango bitange abanyabukorikori, mugihe iseti ishobora guhuzwa nibicuruzwa bitari melamine murwego rumwe: reba igikono cyibiti by'imyembe, igitambaro cya picnic hamwe na firimu ikonjesha.  

Guhitamo kwifunguro ryiza ryubwenge bizamura umutekano murugo, urebe ko abashyitsi bashobora kwinjira byoroshye, kandi bikakubuza kongera gufungwa

Bavuga ko amagi y'amahimbano bivugwa ko ava mu Bushinwa, afite ibishishwa bikozwe muri karubone ya calcium, ibishashara bya paraffin na pome ya gypsum, n'umuhondo n'abazungu bikozwe muri alginate, alum, gelatine n'amabara. Ariko mwebwe mwari muzi ko ubwoba bwamagi bwimpimbano atari shyashya muri Maleziya? Imyaka itatu irashize, umugore wo murugo muri Penang yitotombeye ishyirahamwe ryabaguzi rya Penang. Dore videwo yo mu nyenyeri igihe bakoze iperereza kuri uru rubanza: