Fumaric acid CAS 110-17-8

Ohun-ini Kemikali:

Ilana molikula	C4H4O4
Molar Mass	116.07
iwuwo	1.62
Ojuami Iyo	298-300 °C (sbl.) (tan.)
Boling Point	137.07°C (iṣiro ti o ni inira)
Oju filaṣi	230 °C
Nọmba JECFA	618
Omi Solubility	0.63 g/100 milimita (25ºC)
Solubility	Soluble ni DMSO, omi, insoluble ni sanra-tiotuka Organic epo
Vapor Presure	1.7 mm Hg (165 °C)
Ifarahan	Funfun lulú tabi awọ gara
Àwọ̀	Funfun
Merck	14.4287
BRN	605763
pKa	3.02, 4.38 (ni 25℃)
PH	3.19 (1 mM ojutu);2.57 (10 mM ojutu);2.03 (100 mM ojutu);
Ibi ipamọ Ipo	Fipamọ ni isalẹ + 30 ° C.
Iduroṣinṣin	Idurosinsin ni yara otutu. Decomposes ni ayika 230 C. Ni ibamu pẹlu awọn aṣoju oxidizing lagbara, awọn ipilẹ, awọn aṣoju idinku. Ijona.
Ni imọlara	Ni irọrun fa ọrinrin
ibẹjadi iye to	40%
Atọka Refractive	1.5260 (iṣiro)
MDL	MFCD00002700
Ti ara ati Kemikali Properties	Awọn abuda ti monoclinic colorless abẹrẹ-bi tabi lobular Crystal, eso ekan lenu. solubility: die-die tiotuka ninu omi, ether ati acetic acid, tiotuka ni ethanol. O fẹrẹ jẹ aifọkuba ninu chloroform.
Lo	Fun iṣelọpọ ti Resini Polyester Unsaturated, awọn ipakokoropaeku, acid ati amino acids

Fi imeeli ranṣẹ si wa

Alaye ọja

ọja Tags

Awọn aami ewu	Xi - Irritant
Awọn koodu ewu	36 - Irritating si awọn oju
Apejuwe Abo	26 - Ni irú ti olubasọrọ pẹlu awọn oju, fi omi ṣan lẹsẹkẹsẹ pẹlu ọpọlọpọ omi ati ki o wa imọran iwosan.
UN ID	UN 9126
WGK Germany	1
RTECS	LS9625000
TSCA	Bẹẹni
HS koodu	29171900
Oloro	LD50 ẹnu ni Ehoro: 9300 mg/kg LD50 dermal Ehoro 20000 mg/kg

Ifaara

Fumaric acid. Atẹle jẹ ifihan si awọn ohun-ini, awọn lilo, awọn ọna igbaradi ati alaye ailewu ti transbutalic acid:

Didara:

- Transbutadiic acid jẹ kristali ti ko ni awọ tabi ri to funfun pẹlu itọwo ekan kan.

- O ti wa ni tiotuka ninu omi ati ọpọlọpọ awọn Organic olomi bi alcohols ati ethers.

Ni awọn iwọn otutu ti o ga, transbutylic acid fọ lulẹ lati ṣe agbejade erogba oloro ati acetone.

Lo:

- O ti wa ni lilo pupọ ni igbaradi ti awọn resin polyester fun iṣelọpọ awọn ọja gẹgẹbi awọn aṣọ, awọn pilasitik, ati awọn okun.

Ọna:

- Transbutenedic acid le ṣee gba nipasẹ iṣesi ti butene brominated ati carbonate sodium. Ọna idapọmọra pato jẹ awọn igbesẹ pupọ, pẹlu igbaradi butene, iṣesi bromination, ati hydrolysis alkaline.

Alaye Abo:

- Transbutadiic acid jẹ agbo-ara ti o ni ibinu ti o le fa irritation ati sisun ni olubasọrọ pẹlu awọ ara ati oju.

- Wọ ohun elo aabo ti ara ẹni ti o yẹ gẹgẹbi awọn ibọwọ, awọn gilaasi, ati aṣọ aabo lakoko mimu.

- Yago fun simi si eruku rẹ tabi oru ati pe o yẹ ki o ṣiṣẹ ni agbegbe ti o ni afẹfẹ daradara.

- Awọn ilana agbegbe ati awọn ilana ṣiṣe ailewu yẹ ki o tẹle nigba titoju ati mimu agbo naa.

Ti tẹlẹ: Isopropylamine CAS 75-31-0

Itele: (+/-) -COREY LACTONE, 5- (4-PHENYLBENZOATE) CAS 54382-73-9

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