Acetaldehyde(CAS#75-07-0)

Āhuatanga matū:

Tātai rāpoi	C2H4O
Molar Mass	44.05
Kiato	0.785 g/mL i te 25 °C (marama)
Te Whakarewa	-125 °C (marama)
Piro Pouri	21 °C (marama)
Tohu Kohiko	133°F
Nama JECFA	80
Wairewa wai	> 500 g/L (20 ºC)
Wairewa	waipiro: wairewa
Kohu Kohu	52 mm Hg (37 °C)
Kohu Kohu	1.03 (me te hau)
Te ahua	otinga
Te taumahatanga motuhake	0.823 (20/4 ℃) (?90% Soln.)
Tae	He ma ki waho-ma
Te kakara	Te kakara, te kakara hua ka kitea i te 0.0068 ki te 1000 ppm (te tikanga = 0.067 ppm)
Tepe Whakaaturanga	TLV-TWA 180 mg/m3 (100 ppm) (ACGIH),360 mg/m3 (200 ppm) (NIOSH); STEL270 mg/m3 (150 ppm); IDLH 10,000 ppm.
Merck	14,39
BRN	505984
pKa	13.57(i te 25 ℃)
PH	5 (10g/l, H2O, 20 ℃)
Tikanga Rokiroki	2-8°C
Te pumau	He pumau, engari he hau. Ko nga matū hei karohia ko nga matū oxidizing kaha, waikawa kaha, matū whakaiti, alkalies, halogens, halogen oxides. Tino muramura. Pahū ngā ranunga kohu/hau
Tairongo	Te rangi tairongo
Tepe Pahū	4-57%(V)
Taurangi Refactive	n20/D 1.377
Āhuatanga ā-tinana, matū hoki	Karekau he tae, he muramura, he puhoi, he ngawari te rere o te wai, te kakara raukikini me te kakara. ira whakarewa -123.5 ℃ ira kohua 20.16 ℃ kiato whanaunga 0.7780 taupū whakaata 1.3311 ira hiko -38 ℃ te memehatanga i roto i te wai, te waiwaro, te diethyl ether, te benzene, te penehīni, te toluene, te xylene me te acetone he misible.
Whakamahi	Ka whakamahia te nuinga mo te whakarite i te waikawa acetic, anhydride acetic, butyl aldehyde, octanol, pentaerythritol, triacetaldehyde me etahi atu rauemi matū nui.

Tukuna he imeera ki a matou

Taipitopito Hua

Tohu Hua

Waehere Morearea	R23/24/25 – He paitini ma te horomia, ka pa ki te kiri me te horomia. R34 – He weranga R40 – Nga taunakitanga iti o te paanga mate pukupuku R43 – Ka whakapataritari pea te kiri R36/37 – He whakapataritari ki nga kanohi me te punaha manawa. R12 – Tino muramura R67 – Ko te kohu ka puta te momoe me te mangere R11 – Tino muramura R41 – He kino kino ki nga kanohi R22 – He kino ki te horomia R10 – He mura ahi R19 – Ka hangaia he peroxide pahū
Whakaahuatanga Haumaru	S36/37 – Mau kakahu whakamarumaru me nga karapu tika. S33 – Whakatupato ki nga tukunga pateko. S16 – Kia matara atu i nga puna o te mura. S26 – Mena ka pa ki nga kanohi, horoi tonu ki te nui o te wai me te rapu tohutohu hauora.
UN ID	UN 1198 3/PG 3
WGK Tiamana	2
RTECS	LP8925000
FLUKA BRAND F CODES	10
TSCA	Ae
Waehere HS	29121200
Te akomanga morearea	3
Roopu Tarapi	I
Te paitini	LD50 ā-waha i te kiore: 1930 mg/kg (Smyth)

Kupu Whakataki

Ko te Acetaldehyde, e mohiotia ana ko acetaldehyde, ethylaldehyde ranei, he puhui waro. E whai ake nei he kupu whakataki mo nga rawa, nga whakamahinga, nga tikanga whakarite me nga korero haumaru o te acetaldehyde:

Kounga:

1. He wai kore tae me te kakara raukikini me te hongi.

2. He wairewa i roto i te wai, te waipiro me te ether whakarewa, a ka taea te wariu.

3. He polarity reo, ka taea te whakamahi hei whakarewa pai.

Whakamahia:

1. Kei te whakamahia nuitia i roto i nga mahi ahumahi.

2. He rauemi mata nui mo te whakahiato o etahi atu puhui.

3. Ka taea te whakamahi ki te whakaputa i nga matū penei i te vinyl acetate me te butyl acetate.

Tikanga:

He maha nga huarahi hei whakarite i te acetaldehyde, ko te nuinga o enei ka mahia ma te whakapouritanga o te ethylene. Ka mahia te mahi ma te whakamahi i te hāora me te whakarewa whakarewa (hei tauira, cobalt, iridium).

Mōhiohio Haumaru:

1. He matū paitini, e whakapataritari ana ki te kiri, ki nga kanohi, ki te ara manawa me te punaha keri.

2. He wai muramura hoki, ka puta he ahi ina pa ana ki te mura o te mura, te wera nui ranei.

3. Me whai tikanga haumaru i te wa e whakamahi ana i te acetaldehyde, penei i te mau karapu whakamarumaru, karaehe me nga respirator, me te whakarite kei te mahi i roto i te taiao hau pai.

Tōmua: 1-Kore (CAS#124-19-6)

Panuku: Heptaldehyde(CAS#111-71-7)

Tuhia to korero ki konei ka tukuna mai ki a matou