itulau_fanua

oloa

Furfural(CAS#98-01-1)

Meatotino tau vailaau:

Fuafua mole C5H4O2
Molar Mass 96.08
Malosi 1.16 g/mL ile 25 °C (malamalama)
Lisi Lisi -36 °C (malamalama)
Manu'a 162 °C (malamalama)
Mata'imu 137°F
Numera JECFA 450
Suavai Solubility 8.3 g/100 mL
Solubility 95% ethanol: soluble1ML/mL, manino
Ausa Malo 13.5 mm Hg (55 °C)
Ausa Malosi 3.31 (vs ea)
Fa'aaliga Suavai
Lanu enaena loloto tele
Tapulaa o Fa'aaliga NIOSH REL: IDLH 100 ppm; OSHA PEL: TWA 5 ppm (20 mg/m3); ACGIHTLV: TWA 2 ppm (fa'aaogaina).
Merck 14,4304
BRN 105755
PH >=3.0 (50g/l, 25 ℃)
Tulaga Teuteu Teu i lalo ole +30°C.
Maumau Stable. O mea e tatau ona 'alofia e aofia ai fa'avae malolosi, mea fa'ama'i fa'ama'i ma vaila'au malolosi. Mumu.
Ma'ale'ale Ea maaleale
Tapulaa Pa 2.1-19.3%(V)
Fa'asino Upu n20/D 1.527
Meatotino Faaletino ma Vailaau Suavai ga'o manino le lanu ma le manogi fa'apitoa e pei o le benzaldehyde. E vave ona suia le lanu i le mumu-enaena pe a faʻaalia i le malamalama ma le ea. E faigofie ona fa'afefe i le ausa.
mea fa'apuna 161.7 ℃
tulaga malulu -36.5 ℃
va'aiga va'aiga 1.1594
fa'asino ole su'esu'e 1.5263
mea moli 60 ℃
solubility teisi soluble i le vai, soluble i le ethanol, eter, acetone, chloroform, benzene.
Fa'aoga Faʻaaogaina e pei o mea mataʻutia mo le faʻaogaina o meaola, ae faʻapea foʻi mo le tuʻufaʻatasia o resins, varnishes, vailaau faʻamaʻi, vailaʻau, paʻu ma paʻu.

Fa'amatalaga Oloa

Faailoga o oloa

Tulaga lamatia R21 – E afaina pe a fa'afeso'ota'i ma pa'u
R23/25 – Oona pe a manava ma pe a foloina.
R36/37 – E ita i mata ma le manava.
R40 – Fa'amaoniga fa'atapula'a o se a'afiaga tuga
R36/37/38 – Fa'aitaita'i i mata, faiga manava ma le pa'u.
Fa'amatalaga Saogalemu S26 – Pe a pa'i i mata, fufulu vave i le tele o vai ma saili fautuaga fa'afoma'i.
S36/37/39 – Fai ofu puipui talafeagai, totigilima ma mata/mata.
S45 – I se fa'alavelave po'o ua e lagona le le lelei, saili vave fautuaga fa'afoma'i (fa'aali le igoa pe a mafai.)
S1/2 – Ia lokaina ma aua ne’i o’o atu iai tamaiti.
S36/37 – Fai ofu puipui ma totigilima talafeagai.
UN ID UN 1199 6.1/PG 2
WGK Siamani 2
RTECS LT7000000
FLUKA BRAND F CODES 1-8-10
TSCA Ioe
HS Code 2932 12 00
Mata'utia Fa'amatalaga Fa'aitaita
Vasega o Tulaga Lamatia 6.1
Fa'aputu Vaega II
Oona LD50 tuugutu i isumu: 127 mg/kg (Jenner)

 

Folasaga

Furfural, e lauiloa foi o le 2-hydroxunsaturated ketone poʻo le 2-hydroxypentanone. O lo'o taua i lalo se fa'amatalaga i meatotino, fa'aoga, metotia o sauniuniga ma fa'amatalaga saogalemu o furfural:

 

Tulaga lelei:

- E i ai se foliga le lanu ma e iai sona tofo suamalie faapitoa.

- Furfural e maualalo solubility i le vai, ae soluble i le ava malosi ma ether solvents.

- Furfural e faigofie ona faʻamaʻiina ma faigofie ona pala i le vevela.

 

Metotia:

- O se auala masani mo le saunia o furfural e maua mai ile fa'ama'iina ole C6 alkyl ketones (fa'ata'ita'iga, hexanone).

- Mo se faʻataʻitaʻiga, o le hexanone e mafai ona faʻamaʻiina i furfural e faʻaaoga ai le okesene ma faʻamalosi e pei o le potassium permanganate poʻo le hydrogen peroxide.

- E le gata i lea, o le acetic acid e mafai foi ona faʻafeiloaʻi ma le tele o le C3-C5 alcohols (e pei o le isoamyl alcohol, ma isi) e fausia ai le ester tutusa, ona faʻaititia lea e maua ai furfural.

 

Fa'amatalaga Saogalemu:

- E maualalo le oona o le Furfural ae e mana'omia lava ona fa'aoga ma teu ma le fa'aeteete.

- Aloese mai le pa'i atu i le pa'u ma mata, ma fufulu vave i le tele o vai pe a tupu.

- E tatau ona faʻaeteete ina ia aloese mai le faʻafesoʻotaʻi ma vailaʻau malolosi, puna faʻamumu, ma isi mea i le taimi e teu ai ma faʻaoga e puipuia ai le afi poʻo le pa.

- E tatau ona iai tulaga lelei o le ea i le taimi o le fa'aoga ina ia 'alofia ai le manavaina o ausa faufau.


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