Amụma ụlọ ọrụ Chemical America maka 2019 | Melamine ntụ ntụ resin

Nkeji nke Acid Fatty Acids eke 2019 na-ekpuchi nyocha mpaghara, ndị egwuregwu kacha elu, atụmatụ mgbasawanye, mgbanwe ụwa, ego mbata na amụma uru na 2025

7. Nkwakọ ngwaahịa na-etinye kemịkalụ n'ime nri. A na-eji antimony na tin eme ihe na nkwakọ ngwaahịa ebe ha nwere ike ịbanye nri. Foils, ite, pans na arịa nchekwa nwere kemịkalụ nke enwere ike ịpụta na ha na nri na obere ọkwa. Mgbe ha risịrị nri, ha na-ebute nsogbu ahụike dị iche iche.

Ọ bụrụ na ị na-eme mgbanwe nhazi dịka akụkụ nke ime ụlọ ị na-ehi ụra, were ohere tinye ụfọdụ shelf ndị nwere ọgụgụ isi. Onye ọkwá nkà ma ọ bụ onye na-ewu ụlọ nwere ike ịnabata ihe ndị a mgbe ọ na-ewu mgbidi stud. N'ime nnukwu ụlọ nna ukwu, ị nwere ike wuo mgbidi stud iji nyere aka na mpaghara ohere ma tinye ebe nchekwa na usoro a. 

Bollini, P., Brunelli, NA, Didas, SA & Jones, CW Dynamics nke CO2 adsorption na amine adsorbents. 2. Nghọta n'ime imewe adsorbent. Ind. Eng. Chem. Res. 51, 15153–15162 (2012).

Ma ọ bụ, ekele Choo-Choo, obere obodo. Mgbe anyị chiri ya, anyị buuru otu ezi dị kilogram iri isii, brisket abụọ (ọpụrụiche onye agbata obi Texan bụ́ Jeff’s), otu ọbọgwụ, azụ̀ blue ụfọdụ, na— gịnị mere na ọ bụghị?— eggplant. Akpọrọ m onye ọ bụla m maara n'ụzọ nkịtị ruo mgbe Facebook gbupụrụ m, ma gwa ha ka ha weta ihe ọṅụṅụ na akụkụ ndị ga-adaba anụ ahụ (ma nye m ezumike na isi nri). Ihe si na ya pụta bụ ihe egwu: ndị enyi na ndị bịara abịa na-ejupụta n'okporo ụzọ, igwe nju oyi nke mmanya na biya juru, na anwụrụ ọkụ na-esi n'ọnụ na-erute na brik na nkume brownstone nke agbata obi. N'ime ya niile, enwere m ahụ iru ala - enwere m ihe niile a na-achịkwa, ma ejiri m ya, ọkachasị, Choo-Choo. Ọ ga-abụ ọnụ ahịa okpukpu abụọ. — Matt Gross

A na-ejupụta iko ndị ahụ na mmiri ọkụ na-ekpo ọkụ, nke dị ntakịrị acidic (nke dị na kọfị) ma hapụ ya maka awa abụọ. A na-emeghachi usoro a ugboro asaa kwa iko. Mgbe emeju nke atọ na nke asaa, a nwalere mmiri mmiri dị na iko ọ bụla maka kemịkalụ. 

Ihe atụ atọ N-doped graphene (Sample 1 ruo 3) nwere ọdịnaya nitrogen dị iche iche bụ nke SHS patent method50 mebere. E gosipụtara eserese nke ngwaọrụ mmeghachi omume na Fig. 1. N'ime usoro nkwadebe a na-ahụkarị maka ihe atụ 1, gram 8 nke carbamide (gram 30 maka ihe atụ 2 na gram 21 maka ihe nlele 3) na-agbakwunye na ntụ ntụ ngwakọta nke 14.4 g magnesium. na 33.3 g nke calcium carbonate wee gwerie ya na ngwa agha maka nkeji 20. Mmeghachi omume na-aga n'ihu na crucible nke a na-etinye n'ime akpa ígwè 21.2 L n'okpuru ikuku nke carbon dioxide na nrụgide ikuku, dị ka e gosiri na Fig. ike isi iyi na a na-eguzogide dabeere waya kpo oku na-eji mgbanye ugbu a nke 22 A. Mmeghachi omume spontaneously propagated site ngwakọta na crucible si elu ruo na ala na ụdị nke combustion ife ma kwụsị mgbe combustion ife ruru ala. A na-asachapụ ngwaahịa ojii site na dilute hydrochloric acid (10 v/v%) wee kpalie ruo awa abụọ iji wepụ MgO, CaO na Mg metal fọdụrụnụ. A na-enyocha ngwaahịa ahụ, jiri mmiri deionized na ethanol zuru oke saa ya. A na-ekewapụkwa mpempe akwụkwọ ndị dị gịrịgịrị na ngwaahịa ahụ site na iji centrifuge na 1000 rpm maka nkeji 30 na nzacha ihe dị elu. N'ikpeazụ, a kpochara ihe nlele ahụ n'ime oghere na 120 Celsius maka awa 24. Dị ka ntụnyere, a kwadebere SHS pristine graphene sample (Sample 0) site na gram 16 nke magnesium na gram 33.3 nke calcium carbonate, nke dabere na nha stoichiometric nke mmeghachi omume: 2 mg + CaCO3 = 2 MgO + CaO + C; Ọ dịghị carbamide ewebataghị na mmeghachi omume na ngwaahịa a na-emeso otu usoro dị ka e kwuru n'elu.

N'okpuru: Ọ na-asachapụ nke ọma. N'oge ule m na-eji ya hichaa countertops, tebụl, mgbidi, ala, efere nri nkịta m, ị kpọrọ ya aha. Mgbe ule ụlọ ahụ gasịrị, ejiri m ya na ụlọ ọrụ foto ndị na-ebufe ahịa m na-agba n'akụkụ.

Na mgbakwunye, ọla na-agbakwunye ọmarịcha na agba siri ike dị ka sapphire na ruby ​​nwere Epicurious cookware na colanders.

Ebe ọtụtụ n'ime picnicware melamine anyị nwalere atụmatụ ahịhịa na anụmanụ ndị Britain, Sainsbury's Home ewepụtala mmụọ nsọ ozugbo na Africa maka mkpokọta Global ya. N'ịtụkwasị obi ọnụ ma dị elu mma, anyị hụrụ n'anya ebo ụkpụrụ na nwa, ọcha na ọla edo agwakọta na anụmanụ ihe atụ. A na-emepụta efere akụkụ na ihe nkesa crudités n'ụzọ na-ezughị okè iji nye ọdịdị nkà, ebe enwere ike ijikọta ya na ngwaahịa ndị na-abụghị melamine n'otu ebe: leba anya maka nnukwu efere osisi mango, picnic rug na ngwa nju oyi.  

Nhọrọ nke mkpọchi smart kacha mma ga-eme ka nchekwa ụlọ gị dịkwuo mma, hụ na ndị ọbịa nwere ike ịbanye n'ụzọ dị mfe ma gbochie gị ịkpọchi ọzọ.

A na-ekwu na nsen adịgboroja sitere na China, nwere shells nke calcium carbonate, paraffin wax na gypsum ntụ ntụ, na nkochi ime akwa na ọcha nke alginate, alum, gelatin na agba. Mana unu mara na egwu akwa adịgboroja abụghị ihe ọhụrụ na Malaysia? Afọ atọ gara aga, otu nwunye na Penang mere mkpesa na Association Consumers nke Penang. Nke a bụ vidiyo sitere na The Star mgbe ha nyochara okwu ahụ: