Propylene glycol bụ mmiri mmiri na-enweghị agba, na-enweghị isi, ma na-agbawa agbawa, nke nwere udidi dị ntakịrị karịa mmiri. Ọ fọrọ nke nta ka ọ ghara inwe ụtọ ma bụrụ ihe mgbakwunye nri e ji kemịkalụ mepụta. Dịka ethanol, ọ bụ ihe na-aba n'anya.

Tinyere nke ahụ, dịka ihe mgbaze organic, ọ nwere ike ịgbaze ụfọdụ ihe mgbaze organic karịa mmiri ma nwee ike idobe mmiri nke ọma. N'ihi ihe ndị a pụrụ iche na kemịkalụ, a na-ejikarị ya eme ihe ịchọ mma. A na-ejikarị propylene glycol eme ihe dị ka ihe na-eme ka mmiri dị nro, ihe na-eme ka mmiri dị nro, ihe na-agbaze, wdg, ma nwee mmetụta dị mma na itinye ya n'ọrụ. Enwere ike iji ya mee ihe fọrọ nke nta ka ọ bụrụ ihe ịchọ mma niile, ọkachasị mmiri, ude mmiri, ude ihu, ihe mkpuchi ihu na ngwaahịa ndị ọzọ.

Tinyere ihe ịchọ mma, ọ dịkwa oke mkpa n'ọhịa nri. Ọ maara anyị, mana anyị anaghị etinye uche na ya nke ọma. Dịka "GB 2760-2014 National Food Safety Standard - Food Additive Use Standard" si kwuo, ọrụ nke propylene glycol bụ: stabilizer, coagulant, anti-caking agent, defoaming agent, emulsifier, ihe na-ejide mmiri, na ihe na-eme ka ọ dị arọ.

Ya mere, a na-ejikarị ya eme ihe dị ka ihe na-eme ka ihe na-esi ísì ụtọ ka e wee tinye ya na achịcha, bọta na ngwaahịa ndị ọzọ. Na mgbakwunye, a na-ejikarị propylene glycol eme ihe na nhazi na mwepụ biya dị ka ihe mgbaze maka ihe na-esi ísì ụtọ.

Tinyere nke ahụ, maka ndị enyi na-enwe mmasị ime achịcha, propylene glycol bụ ngwaahịa a na-ejikarị eme ihe, nke nwere ike inyere achịcha aka inweta ụtọ na ụtọ ka mma.

Dịka ụkpụrụ mba si dị, oriri propylene glycol n'enweghị nsogbu na-agbaso ụkpụrụ nke International Joint Expert Group on Food Additives setịpụrụ, ya bụ, oriri kwa ụbọchị ekwesịghị ịgafe 25 mg kwa kilogram nke ibu ahụ.

Maka onye toro eto nke dị kilogram 70, oke oriri kwa ụbọchị agaghị agafe gram 1.75. Ugbu a, n'ihe gbasara mmepụta nri achịcha dị ka achịcha, mgbe a na-eji propylene glycol eme ihe dị ka ihe mgbakwunye, ụzọ a na-esi eme ya bụ na ọdịnaya ya agaghị agafe gram 3 kwa kilogram nke nri.

Enwere ike ịkwado iji propylene glycol dị ka ihe mgbakwunye nri ma agafeela nyocha nchekwa siri ike. N'okpuru "ọnọdụ ojiji na oriri a na-agbaso iwu", "iji ogologo oge" agaghị emerụ ahụike ahụ.

Njirimara kemịkalụ

Propylene glycol
CAS:57-55-6
Usoro molekụla C3H8O2
ibu molekụla 76.09
Nọmba EINECS 200-338-0
Ebe agbaze -60°C (ọkụ)
Ebe esi mmiri ọkụ bụ 187°C (ọkụ)
Njupụta 1.036 g/mL na 25 °C (ọkụ)
Njupụta uzuoku 2.62 (ma e jiri ya tụnyere ikuku)
Nrụgide uzuoku 0.08 mm Hg (20 °C)
Ndekọ Refractive n20 /D 1.432(lit.

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