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(R)-tetrahydrofuran-2-carboxylic acid(CAS#87392-05-0)

Āhuatanga matū:

Tātai rāpoi C5H8O3
Molar Mass 116.12
Kiato 1.209g/mLat 25°C(marama)
Piro Pouri 128-129°C13mm Hg(marama)
Hurihuri motuhake(α) +19.6±0.2°(tatika) (D/20℃)
Tohu Kohiko >230°F
Kohu Kohu 0.0107mmHg i te 25°C
Te ahua wai marama
Tae Taekore ki te Maama kowhai
BRN 4658739
pKa 3.60±0.20(I Matapaetia)
Tikanga Rokiroki Puritia ki te wahi pouri, Hiri ki te maroke, Te Pawera Rua
Taurangi Refactive n20/D 1.46(marama)

Taipitopito Hua

Tohu Hua

Waehere Morearea R22 – He kino ki te horomia
R34 – He weranga
R36/37/38 – He whakapataritari ki nga kanohi, te punaha manawa me te kiri.
Whakaahuatanga Haumaru S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora.
S36/37/39 – Mau kakahu whakamarumaru tika, karapu me te whakamarumaru kanohi/kanohi.
S45 – Ki te puta he aitua, ki te kore ranei koe e pai, rapu wawe i nga tohutohu hauora (whakaatuhia te tapanga ina taea.)
S36 – Mau kakahu whakamarumaru tika.
UN ID UN 3265 8/PG 3
WGK Tiamana 3
Waehere HS 29321900
Te akomanga morearea 8
Roopu Tarapi III

 

Kupu Whakataki

R-(+) tetrahydrofuranoic acid. E whai ake nei he kupu whakataki ki etahi o nga taonga, nga whakamahinga, nga tikanga whakarite me nga korero haumaru o te R-(+)tetrahydrofuranoic acid:

 

Kounga:

- Ko te waikawa R-(+)tetrahydrofuranoic he totoka kore tae ki te kowhai kowhai me te reka kawa.

- Ka memeha ki te wai, ka puta ano he wai me te hurihanga whatu i te pāmahana rūma.

- Ka taea e ia te tauhohe me etahi atu puhui penei i te esterification, condensation, reduction, etc.

 

Whakamahia:

- Ka whakamahia ano te waikawa R-(+)tetrahydrofuranoic ki te whakareri i etahi atu puhui waro, penei i te whakahiato o nga kirihou koiora penei i te waikawa polylactic.

 

Tikanga:

- R-(+)tetrahydrofuranoic acid ka taea te whakarite ma te maha o nga tikanga penei i te wehenga whatu, te whakaheke matū, me nga tikanga enzymatic.

- Ko te whakawehenga whatu he tikanga whakareri e whakamahia nuitia ana ki te wehe i etahi atu iota o te D-lactate ma te kowhiri i nga microorganisms e tika ana ranei.

 

Mōhiohio Haumaru:

- R-(+)tetrahydrofuranoic acid he ahua haumaru i raro i nga tikanga whakamahi noa.

- Ko te pa atu mo te wa roa ka whakapataritari i te kiri me nga kanohi, me tupato ki te whakahaere.

- I te wa e rongoa ana me te whakahaere, me tino u ki nga tikanga whakahaere haumaru e tika ana, me karohia te whakapiri atu ki nga apiha whakahaora kaha me nga rawa muramura.


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