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1,2-Propanediol(CAS#57-55-6) Kiʻi Hōʻike ʻia
  • 1,2-Propanediol(CAS#57-55-6) 1

1,2-Propanediol(CAS#57-55-6)

Waiwai Kemika:

ʻĀpana Molekala C3H8O2
Molar Mass 76.09
ʻO ka mānoanoa 1.036 g/mL ma 25 °C (kukui)
Lae hehee -60 °C (kukui.)
Lae Boling 187 °C (māmā)
Kahuli kiko'ī(α) n20/D 1.432 (māmā)
Lae Flash 225°F
Helu JECFA 925
Hiki i ka wai huikau
Ka hoʻoheheʻe Hiki i loko o ka wai, acetone, ethyl acetate a me chloroform, hiki ke hoʻoheheʻe ʻia i ka etera. Hiki ke hoʻoheheʻe ʻia i loko o nā ʻaila koʻikoʻi he nui, akā ʻaʻole hiki ke hui pū me ka petroleum ether, paraffin a me ka momona.
Puʻupuʻu mahu 0.08 mm Hg ( 20 °C)
Ka māhu māhu 2.62 (me ka lewa)
Ka nana aku ʻO ka waiʻeleʻele
Kaumaha Kūikawā 1.038 (20/20 ℃)1.036～1.040
kalakala APHA: ≤10
ʻO Merck 14,7855
BRN 1340498
pKa 14.49±0.20(Wanamua)
PH 6-8 (100g/l, H2O, 20 ℃)
Kūlana Waihona E mālama ma +5°C a i +30°C.
Pilikino Hygroscopic
Pale Pahū 2.4-17.4%(V)
Hōʻike Hōʻike n20/D 1.432(māmā)
MDL MFCD00064272
Na Waiwai Kino a Kimia ʻAʻole waihoʻoluʻu, ʻeleʻele a paʻa ka wai hoʻopaʻa wai, aneane ʻaʻohe ʻono a ʻala ʻole.
helu hehee -60 ℃
kahi e hoʻolapalapa ai 187.3 ℃
mānoanoa pili 1.0381
helu hoʻopaʻapaʻa 1.4326
kiko uila 99 ℃
hiki ke hoʻoheheʻe ʻia, ethanol a me nā ʻano mea hoʻoheheʻe kūlohelohe.
Hoʻohana Hoʻohana ʻia e like me resin, plasticizer, surfactant, emulsifier a me demulsifier o nā mea maka, hiki ke hoʻohana ʻia e like me ka antifreeze a me ka lawe wela.

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Ka wehewehe palekana 24/25 - E pale i ka pili ʻana me ka ʻili a me nā maka.
WGK Kelemānia 1
RTECS TY2000000
TSCA ʻAe
HS Code 29053200
Kaʻawaʻawa LD50 ma ka waha i ka Lapiti: 19400 – 36000 mg/kg LD50 dermal Lapiti 20800 mg/kg

 

Hoʻolauna

Laʻa iki. He mea maʻalahi ke komo i ka wai a kūpaʻa ma lalo o nā kūlana maʻamau, akā maʻalahi ka hana ʻana i ka propionaldehyde, lactic acid, pyruvate a me ka acetic acid i nā wela kiʻekiʻe. Hiki ke hoʻopili ʻia me ka wai, acetone a me ka chloroform, a hiki ke hoʻoheheʻe ʻia i ka ether. ʻO ka nui o ka make make (iole, waha) he 25ml/kg.

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