sodium metasilicate anhydrous na sodium metasilicate pentahydrate

sodium metasilicate pentahydrate

N'ime ụdị sodium metasilicate, nke a na-ejikarị ma na-ahụkarị bụ sodium metasilicate pentahydrate. A na-edekarị usoro ihe omimi nke sodium metasilicate pentahydrate crystal dị ka na25io3 ・ 5H20, nke bụ n'ezie tetrahydrate nke sodium dihydrosilicate nwere cations abụọ, nke nwere ike nke 50g/100g mmiri (20 ℃) ​​na ebe mgbaze nke 72 ℃. Sodium metasilicate pentahydrate nwere njirimara izugbe nke sodium silicate na sodium metasilicate, ma nwee ikike ijikọ nke calcium na ion magnesium, ọkachasị ike njikọ nke ion magnesium karịrị 260 mgco2/g (35 ℃ min). N'ihe banyere usoro mmepụta, sodium metasilicate pentahydrate nwere ike ịchịkọta n'ụdị atọ: nke mbụ, "usoro granulation na-aga n'ihu",

A na-agafe ihe ngwọta sodium metasilicate site na ngwaọrụ crystallization granulation ka ọ na-emepụta ihe dị iche iche nke nha achọrọ ozugbo ma na-aga n'ihu. Ndekọ mma na-emezu ihe achọrọ nke ọkọlọtọ hg/t2568-94. Ọdịdị nke ngwaahịa ahụ bụ akụkụ okirikiri, nke nwere oke ọcha na ezigbo mmiri. Ọ bụ ngwaahịa dị elu. Usoro a dị mma maka mmepụta ihe dị ukwuu, ma ọ na-esiri ike ịmụta n'ihi nkà na ụzụ siri ike. Nke mbụ, "Ụzọ nkụda mmụọ nke crystallization" na "usoro nhịhịa nke crystallization", "usoro ịkpọ nkụ nke mmiri ara ehi", nke a makwaara dị ka usoro mgbasa mmanya nke nne, bụ ịgbakwunye sodium metasilicate ngwọta na mkpụrụ kristal ma ọ bụ nne mmanya maka oyi na crystallization, wee kpọọ nkụ. na ihuenyo mgbe centrifugal akpịrị ịkpọ nkụ iji nweta ntụ ntụ na ngwaahịa granular. Usoro a siri ike maka mmepụta ihe dị ukwuu, ma ọdịdị ngwaahịa na mmiri mmiri dị mma, na ihe ngosi anụ ahụ na nke kemịkal nwekwara ike izute ihe ndị chọrọ hg / t2568-94 ọkọlọtọ. "Ụzọ ịkụpịa kristal" bụ itinye uche na ngwọta metasilicate sodium na ntinye uche achọrọ, na-eduzi ihe ngwọta iji kristal n'ime ihe mgbochi siri ike site n'ịgbakwunye mkpụrụ kristal na ihe mgbakwunye, gbanwee mmiri niile n'efu ka ọ bụrụ mmiri kristal, ma gwepịa ihe siri ike n'ime ngwaahịa emechara. Uru nke usoro a bụ na ntinye ego ahụ dị ntakịrị, ma mmebi nke ihe owuwu kristal dị oke njọ, ihe ndị a chọrọ maka ọnọdụ ihu igwe na ọnọdụ nchịkwa dị ntakịrị, ike ọrụ dị elu, ịdị ọcha nke ngwaahịa ahụ dị ala. na ọ dị mfe ịmịkọrọ mmiri na agglomerate, Ndekọ anụ ahụ na kemịkalụ n'ozuzu enweghị ike iru ihe achọrọ nke ọkọlọtọ hg/t2568-94. Ojiji nke ngwaahịa granular na-enweghị uzuzu, nke nwere ike izute ihe ndị a chọrọ maka mbupụ: ntụ ntụ na ngwaahịa granular nke ụzọ abụọ nke ikpeazụ na-eji na-eji nnukwu uzuzu, na mbupụ na-ejedebeghị.

sodium metasilicate Anhydrous 

Anhydrous sodium metasilicate molecular formula Na2SiO3, pH uru bụ banyere 12.4, agbaze ebe bụ 1089 ℃, njupụta bụ.0.8-1.2g/cm3, mgbasa ọnụego na mmiri dị ngwa ngwa, na vitrification agaghị eme. Anhydrous sodium metasilicate nwere ngwa ngwa karịa hydrated sodium metasilicate n'ubi ụfọdụ. Anhydrous sodium metasilicate nwere otu irighiri ihe, nnukwu ebe dị n'elu ya na uru nnabata mmanụ dị elu, nke na-enyere aka iwepụ ntụpọ mmanụ. Ngụkọta alkali na silicon dioxide nke sodium metasilicate anhydrous bụ ≥ 94%. E jiri ya tụnyere silicon metasilicate hydrated, ọ na-eme ka ikike nkekọ nke Ca na Mg ions dịkwuo mma, ma na-arụ ọrụ dị mkpa n'ịkwalite ịdị nro nke mmiri siri ike, na-edozi ma na-eme ka uru pH dị ike, na-eme ka arụmọrụ nke surfactants dịkwuo mma, na-emezi nsị, na-achụsa unyi elu. na ịnọgide na-enwe ezigbo ntụ ntụ. Sodium metasilicate nke anhydrous agaghị ebute mmiri kristal, ma gosipụta ndakọrịta pụrụ iche na nkwụsi ike na chlorine organic, peroxide na bleaching synergist na ncha. Mmetụta enyemaka ịsa ahụ dị mma karịa silicon metasilicate hydrated na 4A zeolite. Dabere na ike siri ike nke anhydrous sodium metasilicate chelate magnesium ion na 4A zeolite chelate calcium ion, ha abụọ nwere mmekọ uru na anhydrous sodium metasilicate-4a zeolite ọnụọgụ abụọ mgbakwunye, nke nwere zuru ezu chelating ikike nke calcium na magnesium ion, na nwere magburu onwe ya. arụmọrụ na mmetụta synergistic nke surfactants. Ndị na-emepụta ntụ ntụ ga-agbakwunye nnukwu sodium metasilicate anhydrous

Akụkụ ngwa nke sodium metasilicate anhydrous na hydrated sodium metasilicate intersect, mana n'ubi nwere mmetụta maka mmiri kristal, a ga-ahọrọ silicon metasilicate nke anhydrous kama silicon hydrated.