Propylene glycol CAS: 57-55-6
Ntinye ngwaahịa
Aha sayensị nke propylene glycol bụ "1,2-propanediol". Onye na-agba ọsọ bụ mmiri mmiri viscopic hygroscopic nwere uto ose. Ọ na-esighi ike na mmiri, acetone, ethyl acetate na chloroform, yana soluble na ether. Na-agbaze n'ọtụtụ mmanụ dị mkpa, mana enweghị ike ya na ether petroleum, paraffin na griiz. Ọ na-akwụsi ike maka ikpo ọkụ na ọkụ, ma kwụsie ike na obere okpomọkụ. Propylene glycol nwere ike oxidized n'ime propionaldehyde, lactic acid, pyruvic acid na acetic acid na elu okpomọkụ.
Propylene glycol bụ diol ma nwee njirimara nke mmanya n'ozuzu ya. Na-emeghachi omume na organic acids na inorganic acid iji mepụta monoesters ma ọ bụ diesters. Na-emeghachi omume na propylene oxide iji mepụta ether. Na-emeghachi omume na hydrogen halide iji mepụta halohydrins. Ọ na-emeghachi omume na acetaldehyde ka ọ mepụta methyldioxolane, enweghị agba, viscous na mmiri na-amịkọrọ mmiri kwụsiri ike, ọ fọrọ nke nta ka ọ bụrụ enweghị ụtọ na enweghị isi. Miscible na mmiri, ethanol na iche iche organic solvents.
Mpaghara ngwa
A na-eji ya dị ka akụrụngwa maka resins, plasticizers, surfactants, emulsifiers na demulsifiers, yana mgbochi freeze na ndị na-ebu okpomọkụ.
Nkọwa ihe owuwu
Propylene glycol
CA: 57-55-6
Usoro ihe omimi C3H8O2
arọ molekụla 76.09
Nọmba EINECS 200-338-0
Ebe mgbaze -60 Celsius (ọkụ)
Ebe esi esi 187 Celsius C (ọkụ)
Njupụta 1.036 g/mL na 25 Celsius C (ọkụ.)
Uzuoku njupụta 2.62 (vs ikuku)
Uzuoku mgbali 0.08 mm Hg (20 Celsius C)
Ntụgharị ntụgharị n20 /D 1.432(lit.
Nchekwa na njem
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