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N-Isopropylhydroxylamine CAS: 5080-22-8
N-Isopropylhydroxylamine bụ mmiri mmiri na-enweghị agba, nke nwere isi ammonia siri ike.
- Ọ na-agbaze na mmiri na ọtụtụ ihe ndị na-agbaze na organic, mana ọ naghị agbaze na ihe ndị na-agbaze na-abụghị polar.
- Ọ bụ nucleophile nke nwere mmeghachi omume mgbakwunye na ihe ndị dị ka esters, aldehydes, na ketones.
jiri:
- A na-ejikarị N-Isopropylhydroxylamine eme ihe na mmeghachi omume organic, karịsịa dị ka ihe na-eme ka mmadụ nwee ike ime ihe.
- Enwere ike iji ya mepụta ngwaahịa amino nke aldehydes, ketones, na esters, ma sonye na ụfọdụ mmeghachi omume cyclization.
- Enwere ike iji ya dị ka ihe na-ebelata ihe na-eme ka ihe dị nro rụọ ọrụ iji belata mmeghachi omume na mmepụta ihe ndị sitere n'okike.
Usoro nkwadebe:
- Ụzọ a na-esi eme nkwadebe N-isopropylhydroxylamine bụ ime mmeghachi omume amidation na isopropyl mmanya iji nweta N-isopropylisopropylamide, wee jiri gas ammonia mee ihe iji mepụta N-isopropylhydroxylamine.
Ozi Nchekwa:
- N-Isopropylhydroxylamine bụ ihe na-emebi emebi nke nwere ike ibute mgbakasị ahụ na ọkụ mgbe ọ metụrụ akpụkpọ ahụ na anya.
- Yiri uwe aka nchebe, anya na ihe nchekwa onwe onye ndị ọzọ mgbe ị na-eji ya.
- Jiri ya n'ebe ikuku na-anaghị apụta nke ọma, zerekwa iku ume ikuku ya.
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2,6-Dimethylaniline CAS 87-62-7
2,6-Dimethylaniline bụ mmiri odo odo ntakịrị, nke nwere njupụta dị 0.973. Ọ naghị agbaze na mmiri, ọ na-agbaze na mmanya, ether, ọ na-agbazekwa na hydrochloric acid.
Ụzọ mmepụta nke 2,6-dimethylaniline gụnyere usoro 2,6-dimethylphenol aminolysis, usoro o-methylaniline alkylation, usoro aniline methylation, usoro m-xylene disulfonation nitration na usoro m-xylene disulfonation. Usoro mbelata Toluene nitration, wdg.
Ngwaahịa a bụ ihe dị mkpa maka mmepụta ọgwụ ahụhụ na ọgwụ, a pụkwara iji ya dị ka ihe e ji emepụta kemịkalụ dịka agba. Ọkụ na-ere ọkụ; ọ na-emeghachi omume na ihe ndị na-eme ka ihe dị ndụ ghara ịdị ọkụ; ọ na-agbaze anwụrụ ọkụ nitrogen oxide na-egbu egbu n'ọkụ dị elu.
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2,4-Dimethyl aniline CAS 95-68-1
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2,4-Dimethyl aniline CAS 95-68-1
Ọ bụ mmiri mmanụ na-enweghị agba. Agba ya na-amụba nke ukwuu n'ìhè na ikuku. Ọ na-agbaze ntakịrị na mmiri, ọ na-agbazekwa na ethanol, ether, benzene na acid solutions.
A na-enweta 2,4-Dimethylaniline site na nitration nke m-xylene iji nweta 2,4-dimethylnitrobenzene na 2,6-dimethylnitrobenzene. Mgbe emechara nhicha ahụ, a na-enweta 2,4-dimethylnitrobenzene. A na-enweta ngwaahịa a site na mbelata hydrogenation nke benzene. A na-eji ya dị ka ihe etiti maka ọgwụ nje, ọgwụ na agba. Ọ na-ere ọkụ n'ọkụ mepere emepe; ọ na-arụ ọrụ na oxidants; na-agbaze anwụrụ ọkụ nitrogen oxide na-egbu egbu na okpomọkụ dị elu. N'oge nchekwa na njem, ụlọ nkwakọba ihe kwesịrị inwe ikuku ma kpọọ nkụ na obere okpomọkụ; chekwaa ya iche na asịd, oxidants, na ihe mgbakwunye nri.
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1-(Dimethylamino)tetradecane CAS 112-75-4
1-(Dimethylamino)tetradecane CAS 112-75-4
Ọdịdị ya bụ mmiri mmiri doro anya. A naghị agbaze na mmiri ma ọ dịghịkwa oke mmiri. Ya mere, ọ na-ese n'elu mmiri. Mmetụ aka nwere ike ịkpasu akpụkpọ ahụ, anya na akpụkpọ ahụ mucous iwe. Ọ nwere ike ịkpata nsí site na iri ya, iku ume ma ọ bụ ịmịkọrọ akpụkpọ ahụ.
Eji ya eme kemịkalụ ndị ọzọ. A na-ejikwa ya eme ihe nchekwa, ihe mgbakwunye mmanụ ọkụ, nje bacteria, ihe ndị na-ewepụta ígwè dị ụkọ, ihe ndị na-agbapụta agba, ihe ndị na-emepụta mineral, ihe ịchọ mma, wdg.
Ọnọdụ nchekwa: Debe ya n'ebe dị jụụ, kpọrọ nkụ, gbara ọchịchịrị n'ime akpa ma ọ bụ silinda nke ejiri aka mechie. Debe ya ebe ihe ndị na-adịghị adaba, ebe ọkụ na-agba ọkụ na ndị na-enweghị ọzụzụ na-agaghị ekwe omume. Chebe ya ma tinye akara n'ebe ahụ. Chebe akpa/silinda ka ọ ghara imebi ahụ.
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Triethylamine CAS: 121-44-8
Triethylamine (usoro molekul: C6H15N), nke a makwaara dịka N,N-diethylethylamine, bụ amine tertiary kacha mfe nke a na-akpọ homo-trisubstituted ma nwee ihe ndị a na-ahụkarị dịka tertiary amines, gụnyere nhazi nnu, oxidation, na triethyl Chemicalbook amine. Nwalee (Hisbergreaction) enweghị nzaghachi. Ọ na-adị ka mmiri doro anya nke na-enweghị agba ruo na odo odo, nwere isi ammonia siri ike ma na-ese anwụrụ ntakịrị n'ikuku. Ọ na-agbaze ntakịrị na mmiri, ọ na-agbaze na ethanol na ether. Mmiri mmiri bụ alkaline. Ọ na-egbu egbu ma na-akpasu iwe nke ukwuu.
Enwere ike inweta ya site na imeghachi omume ethanol na ammonia n'ihu hydrogen n'ime reactor nke nwere ihe na-akpali copper-nickel-clay n'okpuru ọnọdụ okpomọkụ (190±2°C na 165±2°C). Mmeghachi omume ahụ ga-emepụtakwa monoethylamine na diethylamine. Mgbe ọ gbasasịrị, a na-efesa ngwaahịa ahụ na ethanol ma mikpuo ya iji nweta triethylamine dị nro. N'ikpeazụ, mgbe nkewa gasịrị, mgbe akpọnwụrụ akpọnwụ ma kewaa ya, a na-enweta triethylamine dị ọcha.
Enwere ike iji Triethylamine mee ihe dị ka ihe mgbaze na ihe eji arụ ọrụ n'ime ụlọ ọrụ mmepụta ihe organic, a na-ejikwa ya eme ihe n'imepụta ọgwụ, ọgwụ nje, ihe mgbochi polymerization, mmanụ ọkụ dị elu, ihe na-eme ka ihe dị ka roba, wdg.
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Chloroacetone CAS: 78-95-5
Chloroacetone CAS: 78-95-5
Ọdịdị ya bụ mmiri mmiri na-enweghị agba nwere isi na-esi ísì ọjọọ. A na-agbaze na mmiri, a na-agbaze na ethanol, ether na chloroform. A na-eji ya eme ihe n'ime ihe ndị sitere n'okike iji kwadebe ọgwụ, ọgwụ nje, ihe na-esi ísì ụtọ na agba, wdg.
E nwere ọtụtụ ụzọ e si emepụta chloroacetone. Usoro acetone chlorination bụ ụzọ dị mkpa e si emepụta ihe n'ụlọ ugbu a. A na-enweta chloroacetone site na itinye chlorin na acetone n'ihu calcium carbonate, ihe na-ejikọ acid. Tinye acetone na calcium carbonate n'ime reactor dịka oke nri si dị, gwakọta ya ka ọ bụrụ slurry, wee kpoo ya ọkụ ruo mgbe ọ ga-ada. Mgbe ị kwụsịrị ikpo ọkụ, tinye gas chlorine n'ime ihe dị ka awa 3 ruo 4, tinyekwa mmiri iji gbazee calcium chloride emepụtara. A na-anakọta oyi akwa mmanụ ahụ, wee saa ya, gbazee ya, ma gwakọta ya iji nweta ngwaahịa chloroacetone.
Njirimara nchekwa na njem nke chloroacetone
A na-eku ume ma kpọọ nkụ n'ụlọ nkwakọba ihe ahụ n'okpomọkụ dị ala; a na-echebe ya pụọ na ọkụ na-emeghe na okpomọkụ dị elu, a na-echekwa ya ma na-ebuga ya iche site na ihe ndị e ji esi nri na ihe ndị na-eme ka oxidant ghara ịdị.
Ọnọdụ nchekwa: 2-8°C -
Propylene Glycol CAS:57-55-6
Aha sayensị nke propylene glycol bụ "1,2-propanediol". Racemate bụ mmiri mmiri viscous hygroscopic nwere uto dịtụ ose. A na-agwakọta ya na mmiri, acetone, ethyl acetate na chloroform, a na-agbakwa ya na ether. A na-agbaze ya na ọtụtụ mmanụ dị mkpa, mana a na-agbaze ya na petroleum ether, paraffin na griiz. Ọ na-adịgide adịgide iji kpoo ọkụ ma dị ọkụ, ọ na-adịkwa mma karịa na obere okpomọkụ. Enwere ike ịgbaze propylene glycol ka ọ bụrụ propionaldehyde, lactic acid, pyruvic acid na acetic acid na okpomọkụ dị elu.
Propylene glycol bụ diol ma nwee ihe ndị dị ka mmanya nkịtị. Ọ na-emeghachi omume na asịd organic na asịd inorganic iji mepụta monoesters ma ọ bụ diesters. Ọ na-emeghachi omume na propylene oxide iji mepụta ether. Ọ na-emeghachi omume na hydrogen halide iji mepụta halohydrins. Ọ na-emeghachi omume na acetaldehyde iji mepụta methyldioxolane.
Dịka ihe na-akpata nje bacteria, propylene glycol yiri ethanol, arụmọrụ ya n'igbochi ebu yiri nke glycerin ma dị ntakịrị ala karịa nke ethanol. A na-ejikarị propylene glycol eme ihe dị ka ihe na-eme ka plastik dị na ihe mkpuchi ihe nkiri mmiri. Ngwakọta nke akụkụ hà nhata na mmiri nwere ike igbu oge hydrolysis nke ụfọdụ ọgwụ ma mee ka nkwadebe dịkwuo mma.
Mmiri mmiri na-enweghị agba, viscous na nke kwụsiri ike nke na-amịkọrọ mmiri, ọ fọrọ nke nta ka ọ ghara inwe uto ma ọ bụ isi. A na-agwakọta ya na mmiri, ethanol na ihe mgbaze dị iche iche sitere na organic. A na-eji ya eme ihe dị ka ihe eji emepụta resin, ihe ndị na-eme ka plastik dị nro, ihe ndị na-eme ka mmiri dị nro, ihe ndị na-eme ka mmiri dị nro na ihe ndị na-eme ka mmiri dị nro, yana ihe ndị na-egbochi oyi na ihe ndị na-ekpo ọkụ.
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Asịd Benzoic CAS:65-85-0
Acid Benzoic, nke a makwaara dị ka benzoic acid, nwere usoro molekul nke C6H5COOH. Ọ bụ acid aromatic kachasị mfe nke otu carboxyl jikọtara kpọmkwem na atọm carbon nke mgbanaka benzene. Ọ bụ ngwakọta e ji dochie hydrogen na mgbanaka benzene na otu carboxyl (-COOH). Ọ bụ kristal na-enweghị agba, nke na-enweghị isi. Ebe agbaze bụ 122.13℃, ebe esi mmiri bụ 249℃, na njupụta ya bụ 1.2659 (15/4℃). Ọ na-agbada ngwa ngwa na 100°C, uzuoku ya na-akpasu iwe nke ukwuu ma nwee ike ịkpata ụkwara ngwa ngwa mgbe e kusịrị ya. Ọ na-agbaze ntakịrị na mmiri, ọ na-agbaze ngwa ngwa na ihe mgbaze organic dịka ethanol, ether, chloroform, benzene, toluene, carbon disulfide, carbon tetrachloride na pine Chemicalbook na-echekwa mmanụ. Ọ dị n'ọtụtụ ebe n'okike n'ụdị free acid, ester ma ọ bụ ihe ndị sitere na ya. Dịka ọmụmaatụ, ọ dị n'ụdị free acid na benzyl ester na benzoin chịngọm; ọ dị n'ụdị free na akwụkwọ na ogbugbo osisi ụfọdụ; ọ dị n'ụdị isi ísì. Ọ dị n'ụdị methyl ester ma ọ bụ benzyl ester na mmanụ dị mkpa; ọ dị n'ụdị hippuric acid ya sitere na mmamịrị ịnyịnya. Benzoic acid bụ acid na-adịghị ike, siri ike karịa abụba. Ha nwere ihe ndị yiri kemịkalụ ma nwee ike ịmepụta nnu, esters, acid halides, amides, acid anhydrides, wdg, a naghịkwa ekpochapụ ha ngwa ngwa. Mmeghachi omume mgbanwe electrophilic nwere ike ime na mgbanaka benzene nke benzoic acid, na-emepụtakarị ngwaahịa meta-replacement.
A na-ejikarị benzoic acid eme ihe dị ka ọgwụ ma ọ bụ ihe nchekwa. Ọ na-egbochi uto nke ero, nje bacteria, na ebu. Mgbe e jiri ya mee ihe n'ọgwụ, a na-etinye ya n'akpụkpọ ahụ iji gwọọ ọrịa akpụkpọ ahụ dịka ringworm. A na-eji ya eme ihe n'ime eriri sịntetik, resin, mkpuchi, roba, na ụlọ ọrụ ụtaba. Na mbụ, a na-emepụta benzoic acid site na carbonization nke benzoin gum ma ọ bụ hydrolysis nke akwụkwọ kemịkalụ na mmiri alkaline. A pụkwara imepụta ya site na hydrolysis nke hippuric acid. N'ụlọ ọrụ mmepụta ihe, a na-emepụta benzoic acid site na ikuku oxidation nke toluene n'ihu ihe ndị na-akpali akpali dị ka cobalt na manganese; ma ọ bụ a na-emepụta ya site na hydrolysis na decarboxylation nke phthalic anhydride. A pụrụ iji benzoic acid na nnu sodium ya dị ka ihe na-egbu nje na latex, ezé ezé, jam ma ọ bụ nri ndị ọzọ, a pụkwara iji ya dị ka ihe na-egbu nje maka agba na ibipụta. -
Ethyl N-acetyl-N-butyl-β-alaninate CAS:52304-36-6
BAAPE bụ ọgwụ nje ụmụ ahụhụ sara mbara nke na-achụpụ ijiji, nsị, anwụnta, anwụnta, ọchịcha, midges, gadflies, flat fleas, ájá fleas, ájá midges, sandflies, cicadas, wdg. Mmetụta na-egbochi ọrịa; mmetụta ya na-adịte aka ma enwere ike iji ya mee ihe n'ọnọdụ ihu igwe dị iche iche. Ọ kwụsiri ike na kemịkal n'okpuru ọnọdụ ojiji ya ma nwee nnukwu nkwụsi ike okpomọkụ na oke ọsụsọ. BAAPE nwere ezigbo ndakọrịta na ihe ịchọ mma na ọgwụ ndị a na-ejikarị eme ihe. Enwere ike ime ya ka ọ bụrụ ihe ngwọta, emulsions, mmanụ, mkpuchi, gels, aerosols, coils anwụnta, microcapsules na ọgwụ ọgwụ pụrụ iche ndị ọzọ, enwere ike itinye ya na ngwaahịa ndị ọzọ. Ma ọ bụ na ihe (dịka mmiri mposi, mmiri ọgwụ mgbochi anwụnta), ka o wee nwee mmetụta mgbochi ọrịa.
BAAPE nwere uru dị na enweghị mmetụta ọjọọ na akpụkpọ ahụ na akpụkpọ ahụ mucous, enweghị nfụkasị ahụ, na enweghị ike ịmịpụta akpụkpọ ahụ.
Àgwà: Mmiri na-enweghị agba ruo odo odo dị nro, ọ bụ ezigbo ọgwụ anwụnta. Ma e jiri ya tụnyere ọgwụ anwụnta nkịtị (DEET, nke a na-akpọkarị DEET), ọ nwere njirimara pụrụ iche nke obere nsí, obere iwe, na ogologo oge mgbochi. , ngwaahịa zuru oke maka ọgwụ anwụnta nkịtị.
Ọgwụ mgbochi mmiri na-agbaze (BAAPE) adịghị arụ ọrụ nke ọma dịka ọgwụ DEET ọdịnala n'ịchụpụ anwụnta. Agbanyeghị, ma e jiri ya tụnyere ya, DEET (IR3535) anaghị akpasu iwe ma ọ dịghị abanye n'akpụkpọ ahụ.
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2-Methoxyethanol CAS 109-86-4
Ethylene glycol monomethyl ether (nke a kpọchiri akpọchi dị ka MOE), nke a makwaara dị ka ethylene glycol methyl ether, bụ mmiri mmiri na-enweghị agba na nke doro anya, nke a na-agwakọta ya na mmiri, mmanya, acetic acid, acetone na DMF. Dịka ihe mgbaze dị mkpa, a na-ejikarị MOE eme ihe dị ka ihe mgbaze maka ọtụtụ mmanụ dị iche iche, cellulose acetates, cellulose nitrates, agba ndị na-agbaze mmanya na resins sịntetik.
A na-enweta ya site na mmeghachi omume nke ethylene oxide na methanol. Tinye methanol na ngwakọta boron trifluoride ether, ma gafere ethylene oxide na 25-30°C ka ị na-akpali ya. Mgbe emechara ngafe ahụ, okpomọkụ na-arị elu na 38-45°C na akpaghị aka. A na-agwọ ngwọta mmeghachi omume sitere na ya na potassium hydrocyanide- Neutralize the methanol solution ka ọ bụrụ pH=8-Chemicalbook9. Weghachite methanol, gbazee ya, ma chịkọta akụkụ tupu 130°C iji nweta ngwaahịa ahụ. Mgbe ahụ mee fractional distillation, ma chịkọta 123-125°C fraction dị ka ngwaahịa emechara. Na mmepụta ụlọ ọrụ mmepụta ihe, a na-emeghachi omume ethylene oxide na methanol anhydrous na okpomọkụ na nrụgide dị elu na-enweghị ihe mkpali, enwere ike nweta ngwaahịa mmepụta dị elu.
A na-eji ngwaahịa a dị ka ihe mgbaze maka ọtụtụ mmanụ dị iche iche, lignin, nitrocellulose, cellulose acetate, agba mmanya na-agbaze na resin sịntetik; dị ka ihe na-eme ka a chọpụta iron, sulfate na carbon disulfide, dị ka ihe na-agbaze maka mkpuchi, na maka cellophane. N'ime ihe mkpuchi nkwakọ ngwaahịa, varnish na enamel na-akpọ nkụ ngwa ngwa. Enwere ike iji ya dị ka ihe na-abanye n'ime na ihe na-eme ka ọkwa dị elu na ụlọ ọrụ agba, ma ọ bụ dị ka ihe na-eme ka plastik na-egbuke egbuke. Dị ka ihe dị n'etiti na mmepụta nke ihe ndị sitere n'okike, a na-ejikarị ethylene glycol monomethyl ether eme ihe na njikọ nke acetate na ethylene glycol dimethyl ether. Ọ bụkwa ihe eji emepụta Chemicalbook maka mmepụta nke bis(2-methoxyethyl)phthalate plasticizer. Ngwakọta nke ethylene glycol monomethyl ether na glycerin (ether: glycerin = 98:2) bụ ihe mgbakwunye mmanụ ụgbọelu agha nke nwere ike igbochi icing na corrosion nje bacteria. Mgbe ejiri ethylene glycol monomethyl ether dị ka ihe na-egbochi nhazi mmanụ ụgbọelu, ego mgbakwunye izugbe bụ 0.15% ± 0.05%. Ọ nwere ezigbo hydrophilicity. Ọ na-eji otu hydroxyl nke ya n'ime mmanụ iji mekọrịta ọnụọgụ mmiri dị na mmanụ ahụ. Mmepụta njikọ hydrogen, yana obere ebe oyi ya, na-ebelata ebe oyi na-atụ n'ime mmanụ ahụ, na-ekwe ka mmiri ahụ banye n'ime ice. Ethylene glycol monomethyl ether bụkwa ihe mgbakwunye na-egbochi nje bacteria.
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1,4-Butanediol diglycidyl ether CAS 2425-79-8
1,4-Butanediol glycidyl ether, nke a makwaara dị ka 1,4-butanediol dialkyl ether ma ọ bụ BDG, bụ ihe mejupụtara organic. Ọ bụ mmiri mmiri na-enweghị agba ruo na odo odo dị nro, nke nwere obere mgbanwe. Ọ na-agbaze n'ọtụtụ ihe mgbaze organic dịka ethanol, methanol na dimethylformamide. A na-ejikarị ya eme ihe dị ka ihe ndị e ji kemịkalụ mee na ihe mgbaze. A na-ejikwa ya dị ka ihe na-eme ka agba na agba sie ike.
Enwere ike imepụta 1,4-Butanediol glycidyl ether site na esterification nke 1,4-butanediol na methanol ma ọ bụ methanol solution. A na-emekarị ọnọdụ mmeghachi omume n'okpuru nrụgide dị elu na ọnụnọ nke ihe na-akpali akpali.
Mgbe ị na-eji 1,4-butanediol glycidyl ether, a ga-akpachara anya iji gbochie ọ bụla imetụ akpụkpọ ahụ na anya aka. N'oge eji ya na ebe a na-echekwa ya, a ga-ezere oke okpomọkụ na ebe ọkụ na-esi apụta. A ga-elebara anya na mkpuchi nke ihe nchekwa iji gbochie uzuoku na mmiri na-agbapụta. -
Diethanolamine CAS: 111-42-2
Ethanolamine EA bụ ngwaahịa kachasị mkpa na ethanol, gụnyere monoethanolamine MEA, diethanolamine DEA na triethanolamine TEA. Ethanolamine bụ ihe dị mkpa na-eme ka ihe dị ndụ dị n'ime ya, nke a na-ejikarị eme ihe na surfactants, ihe nhicha sịntetik, ihe mgbakwunye petrochemical, resin sịntetik na rọba plastik, ihe na-eme ka ihe dị ndụ dị ọcha, ihe na-eme ka ihe dị ndụ dị ọcha na ihe na-eme ka ụfụfụ dị ọcha, yana nhicha gas, ihe na-egbochi mmiri mmiri, mbipụta na agba agba, ọgwụ, ọgwụ ahụhụ, owuwu, ụlọ ọrụ agha na mpaghara ndị ọzọ. Ngwaahịa ndị dị n'okpuru nke ethanolamine bụ ihe dị mkpa maka kemịkalụ dị mma.
Diethanolamine, nke a makwaara dịka bishydroxyethylamine na 2,2′-iminobisethanol, bụ kristal ọcha ma ọ bụ mmiri mmiri na-enweghị agba nke nwere hygroscopicity siri ike. Ọ na-agbaze ngwa ngwa na mmiri, methanol, ethanol, acetone na benzene. Mmiri ya (g/100g) na benzene na 25°C bụ 4.2 na ether bụ 0.8. Ebumnuche ya bụ: ihe nhicha gas, nke nwere ike ịmịkọrọ gas acidic Chemicalbook na gas, dị ka carbon dioxide, hydrogen sulfide, sulfur dioxide, wdg. Ngwọta "Benfield" ejiri na ụlọ ọrụ ammonia sịntetik bụ nke mejupụtara ngwaahịa a; a na-ejikwa ya maka emulsification. Ihe nnọchite anya, mmanụ, shampoos, ihe ndị na-eme ka ihe sie ike, wdg; ihe ndị na-eme ka ihe dị n'ime organic synthesis, nke e ji emepụta ihe eji asa ákwà, ihe nchekwa na kemịkalụ kwa ụbọchị (dị ka surfactants); mmepụta nke morpholine.
A na-eji Diethanolamine eme ihe dị ka ihe e ji echekwa ihe n'ụlọ ọrụ ọgwụ. A na-eji ya eme ihe dị ka ihe na-ejikọ ọnụ n'imepụta ụfụfụ polyurethane dị elu. A na-agwakọta ya na triethanolamine dị ka ihe nchacha maka piston injin ụgbọelu. Ọ na-emeghachi omume na asịd abụba iji mepụta alkyl alkyls. A na-ejikwa ya na ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe, ihe ndị e ji emepụta ... ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji emepụta ihe ndị e ji
