3,3'-Dihydroxybenzidine

Bezeichnung:3,3'-Dihydroxybenzidine

CAS-Nr2373-98-0

Englisch Name:3,3'-Dihydroxybenzidine

CBNumberCB6437723

SummenformelC12H12N2O2

Molgewicht216.24

MOL-Datei2373-98-0.mol

3,3'-Dihydroxybenzidine physikalisch-chemischer Eigenschaften

Schmelzpunkt	292 °C
Siedepunkt	356.65°C (rough estimate)
Dichte	1.1710 (rough estimate)
Brechungsindex	1.6660 (estimate)
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
Wasserlöslichkeit	Practically insoluble in water
Aggregatzustand	powder to crystal
pka	9.15±0.10(Predicted)
Farbe	White to Gray to Brown
CAS Datenbank	2373-98-0(CAS DataBase Reference)
EPA chemische Informationen	3,3-Dihydroxybenzidine (2373-98-0)

Sicherheit

Kennzeichnung gefährlicher	T
R-Sätze:	40-45-48-36/37/38
S-Sätze:	22-53-45-36/37/39-26-6
RTECS-Nr.	DV4900000
HS Code	29222990
Giftige Stoffe Daten	2373-98-0(Hazardous Substances Data)

Gefahreninformationscode (GHS)

3,3'-Dihydroxybenzidine Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R40:Verdacht auf krebserzeugende Wirkung.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
Beschreibung
3,3'-Dihydroxybenzidine is an organic synthesis intermediate used as a raw material for the synthesis of fire-resistant polymers (polyhydroxyamino acids).3,3'-Dihydroxybenzidine is also used in the preparation of hydroxyl-containing polyimides, all of which are synthesised to be soluble in NMP when heated. 3,3'-Dihydroxybenzidine is used in the synthesis of polyimides with hydroxyl groups. The glass transition temperature (Tg) of polyimides ranges from 336-360°C, independent of the structure of the tetracarboxylic dianhydride. The storage modulus of some polyimides does not decrease at elevated temperatures. All polyimides thermally transform into polybenzoxazole when heated to 500°C for 1 hour under vacuum.
Chemische Eigenschaften
A pale brown solid
Verwenden
4,4'-diaminobiphenyl-3,3'-diol is used as organic intermediates.
Verwenden
3,3''-Dihydroxybenzidine is used in preparation method of covalent organic framework-based metamaterial for optical device.
Allgemeine Beschreibung
Colorless crystals.
Air & Water Reaktionen
Keep well closed. Protect from air and light.
Reaktivität anzeigen
3,3'-Dihydroxybenzidine is an aminoalcohol. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition 3,3'-Dihydroxybenzidine emits toxic fumes.
Sicherheitsprofil
Suspected carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of Nox

3,3'-Dihydroxybenzidine Upstream-Materialien And Downstream Produkte

3,3'-Dihydroxybenzidine Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

2373-98-0, 3,3'-Dihydroxybenzidine Verwandte Suche:

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