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huahana

Diacetyl 2-3-Diketo butane(CAS#431-03-8)

Waiwai Kemika:

ʻĀpana Molekala C4H6O2
Molar Mass 86.09
ʻO ka mānoanoa 0.985g/mLat 20°C
Lae hehee -4–2 °C
Lae Boling 88°C(māmā)
Lae Flash 45°F
Helu JECFA 408
Hiki i ka wai 200 g/L (20 ºC)
Ka hoʻoheheʻe 200g/l
Puʻupuʻu mahu 52.2 mm Hg ( 20 °C)
Ka māhu māhu 3 (vs ea)
Ka nana aku Waiwai
kala kala Melemele akaka
Palena Hōʻike ACGIH: TWA 0.01 ppm; STEL 0.02 ppmNIOSH: TWA 5 ppb; STEL 25 ppb
ʻO Merck 14,2966
BRN 605398
Kūlana Waihona E mālama ma +2°C a i +8°C.
Paʻa Paʻa. Hiki ke ahi. ʻAʻole kūpono me nā waikawa, nā kumu ikaika, nā metala, nā mea hoʻohaʻahaʻa, nā mea oxidizing. E pale i ka makū a me ka wai. E hoʻomaopopo i ke kiko uila haʻahaʻa.
Pale Pahū 2.4-13.0%(V)
Hōʻike Hōʻike n20/D 1.394(māmā)
Na Waiwai Kino a Kimia ʻO ka mānoanoa 0.981
wahi hoʻolapalapa 88°C
helu hoʻopaʻapaʻa 1.391-1.399
kiko uila 7°C
hiki ke hoʻoheheʻe ʻia i ka wai 200g/L (20°C)
Hoʻohana Hoʻohana ʻia no ka hoʻomākaukau ʻana i ka ʻono holika, ʻo ia ka mea nui no ka hana ʻana i ka ʻono pyrazine

Huahana Huahana

Huahana Huahana

Nā Code Risk R11 – Hiki ke ahi
R20/22 – He pōʻino ma ka inhalation a inā ale ʻia.
R38 - He hoʻonāukiuki i ka ʻili
R41 – Ka pilikia o ka poino nui i na maka
R36/38 – Hoʻonanea i ka maka a me ka ʻili.
R20/21/22 – He pōʻino ma ka inhalation, pili me ka ʻili a inā ale ʻia.
R37/38 – Hoʻonanea i ka ʻōnaehana hanu a me ka ʻili.
Ka wehewehe palekana S9 - E mālama i ka pahu ma kahi e hoʻoheheʻe maikaʻi ʻia.
S16 – E hoʻokaʻawale i nā kumu hoʻā.
S26 – Inā pili me nā maka, e holoi koke me ka wai nui a e ʻimi i ka ʻōlelo aʻo kino.
S37/39 – E hoʻohana i nā mīkina lima kūpono a me ka pale maka/maka
S36/37/39 – E hoʻohana i nā lole pale kūpono, nā mīkina lima a me ka pale maka/maka.
S39 - Hoʻohana i ka pale maka / maka.
UN ID UN 2346 3/PG 2
WGK Kelemānia 2
RTECS EK2625000
NUI FLUKA BRAND F 13
TSCA ʻAe
HS Code 29141990
Papa Hazard 3
Hui Pūʻulu II
Kaʻawaʻawa LD50 waha i nā ʻiole: 1580 mg/kg (Jenner)

 

Hoʻolauna

ʻO ka 2,3-Butanedione kahi mea hoʻohuihui. ʻO kēia ka hoʻolauna ʻana i nā waiwai, hoʻohana, nā ʻano hoʻomākaukau a me ka ʻike palekana o 2,3-butanedione:

 

ʻAno maikaʻi:

- Ke ʻano: 2,3-Butanedione he wai kala ʻole me kahi ʻala ʻala.

- Solubility: Hiki ke hoʻoheheʻe ʻia i ka wai a me nā mea hoʻoheheʻe organik he nui.

- Paʻa: 2,3-butanedione ka mea paʻa i ka māmā a me ka wela.

 

E hoʻohana:

- Nā noi hana: 2,3-butanedione e hoʻohana pinepine ʻia ma ke ʻano he mea maka no nā solvents, coatings a me nā mea hoʻohui plastik.

- Nā hopena kemika: Hiki ke hoʻohana ʻia e like me nā intermediates pane i ka synthesis organik, e like me ka synthesis a me ka oxidation o nā ketones.

 

Hanana:

- ʻO ke ʻano synthesis maʻamau ka loaʻa ʻana o 2,3-butanedione ma o ka oxidation o butanedione. Loaʻa kēia ma ka hana ʻana i ka 2-butanone me ka oxygen i mua o kahi catalyst.

 

ʻIke palekana:

- 2,3-Butanedione he mea hoʻonāukiuki, ʻoi aku ka nui o ka maka a me ka ʻili. Hōʻalo i ka pili ʻana me ka ʻili a me nā maka i ka wā e hoʻohana ai, a holoi koke me ka wai nui inā pili.

- He wai wela ia a pono e pale ʻia mai ka hoʻopili ʻana me nā kumu ahi a hoʻohana ʻia ma kahi wahi e hoʻoheheʻe ʻia.

- I ka ʻai ʻana a i ʻole ka inhalation, e ʻimi koke i ka lāʻau lapaʻau.

 


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