6,6'-Di-tert-butyl-2,2'-methylendi-p-kresol

Bezeichnung:6,6'-Di-tert-butyl-2,2'-methylendi-p-kresol

Englisch Name:2,2'-Methylenebis(4-methyl-6-tert-butylphenol)

CBNumberCB8468783

SummenformelC23H32O2

Molgewicht340.5

Synonyma

6,6'-Di-tert-butyl-2,2'-methylendi-p-kresol

6,6'-Di-tert-butyl-2,2'-methylendi-p-kresol physikalisch-chemischer Eigenschaften

Schmelzpunkt	123-127 °C(lit.)
Siedepunkt	187℃
Dichte	1.04g/cm3
Dampfdruck	<1 hPa
Brechungsindex	1.4480 (estimate)
Flammpunkt	195°C(383°F)
storage temp.	Store below +30°C.
Löslichkeit	0.007mg/l practically insoluble
Aggregatzustand	White to off-white solid.
pka	11.32±0.48(Predicted)
Farbe	White to Off-White
PH	4-7 (H2O, 20℃)(aqueous suspension)
Wasserlöslichkeit	7μg/L at 20℃
InChIKey	KGRVJHAUYBGFFP-UHFFFAOYSA-N
LogP	6.25 at 20℃
CAS Datenbank	119-47-1(CAS DataBase Reference)
NIST chemische Informationen	Phenol, 2,2'-methylenebis[6-(1,1-dimethylethyl)-4-methyl-(119-47-1)
EPA chemische Informationen	2,2'-Methylenebis(6-tert-butyl-p-cresol) (119-47-1)

Sicherheit

Kennzeichnung gefährlicher	Xi,Xn
R-Sätze:	36-62-53
S-Sätze:	26-36-60-36/37
WGK Germany	1
RTECS-Nr.	PA3500000
Selbstentzündungstemperatur	350 °C
TSCA	Yes
HS Code	29072900
Giftige Stoffe Daten	119-47-1(Hazardous Substances Data)
Toxizität	LD50 orally in Rabbit: 4880 mg/kg LD50 dermal Rabbit > 2000 mg/kg

Gefahreninformationscode (GHS)

R-Sätze Betriebsanweisung:
R36:Reizt die Augen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Verwenden
LOWINOX® 22M46 stabilizer is a non-discoloring antioxidant based on a sterically hindered alkylated bis-phenol.
Verwenden
It may be incorporated into the bromobutyl rubber(BIIR) matrix to enhance the overall thermo-reversibility of dicyclopentadiene dicarboxylic acid (DCPDCA) cross-linked BIIR. It may also be used as an antioxidant which shows a higher oxidation stability in distilled biodiesel.
Definition
ChEBI: 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) is a diarylmethane.
Allgemeine Beschreibung
2,2′-Methylenebis(6-tert-butyl-4-methylphenol) is a phenolic antioxidant commonly used in increasing the oxidation stability in rubber and plastic industries.
Flammability and Explosibility
Not classified
Industrielle Verwendung
2,2'-Methylenebis(4-methyl-6-tert-butylphenol) is used in the following products: adhesives and sealants, lubricants and greases, fuels, hydraulic fluids and metal working fluids.
Source
2,2'-Methylenebis(4-methyl-6-tert-butylphenol) is a natural product found in Streptomyces and Aspergillus fumigatus with data available.

Properties and Applications

TEST ITEMS	SPECIFICATION
APPEARANCE	COLORLESS CRYSTALLINE POWDER
CONTENT	98.0% min
MELTING POINT	124 °C +
MELTING RANGE	120-130 °C
VOLATILE	0.3% max
ASH	0.1% max
150um SIEVE RESIDUE	0.5% max