2-Methylpentan-2,4-diol

Bezeichnung:2-Methylpentan-2,4-diol

CAS-Nr107-41-5

Englisch Name:2-Methyl-2,4-pentanediol

CBNumberCB5353705

SummenformelC6H14O2

Molgewicht118.17

MOL-Datei107-41-5.mol

Synonyma

2-Methylpentan-2,4-diol

2-Methyl-2,4-pentandiol

2,4-Dihydroxy-2-methylpentan

2-Methylpentan-2,4-diol physikalisch-chemischer Eigenschaften

Schmelzpunkt	-40 °C (lit.)
Siedepunkt	197 °C (lit.)
Dichte	0.925 g/mL at 25 °C (lit.)
Dampfdichte	4.1 (vs air)
Dampfdruck	0.02 mm Hg ( 20 °C)
Brechungsindex	n20/D 1.427(lit.)
Flammpunkt	201 °F
storage temp.	Store below +30°C.
Löslichkeit	H₂O: 1 M at 20 °C, clear, colorless
Aggregatzustand	Slightly Viscous Liquid
pka	15.10±0.29(Predicted)
Farbe	Clear
PH	6-8 (25℃, 1M in H2O)
Geruch (Odor)	Ammonia-like.
Optische Rotation	-0.2375°(C=1g/100ml MEOH)
Biologische Quelle	synthetic
Explosionsgrenze	1-9.9%(V)
Wasserlöslichkeit	soluble
Spezifische Wärmekapazität	Cp(liquid): 2.84 J/(g·K), at 25℃
Sensitive	Hygroscopic
maximale Wellenlänge (λmax)	λ: 260 nm Amax: 0.01 λ: 280 nm Amax: 0.01
Merck	14,4710
BRN	1098298
Henry's Law Constant	2.5×10¹ mol/(m³Pa) at 25℃, HSDB (2015)
Expositionsgrenzwerte	MAC:100 mg/m3
Dielectric constant	24.399999999999999
Stabilität	Stable. Incompatible with strong oxidizing agents, strong acids, strong reducing agents.
Kosmetik-Inhaltsstoffe Funktionen	SURFACTANT - EMULSIFYING SOLVENT SKIN CONDITIONING PERFUMING SURFACTANT - CLEANSING
Erinnerung an die inhaltsstoffe	2-Methyl-2,4-pentanediol (107-41-5)
InChI	1S/C6H14O2/c1-5(7)4-6(2,3)8/h5,7-8H,4H2,1-3H3
InChIKey	SVTBMSDMJJWYQN-UHFFFAOYSA-N
SMILES	CC(O)CC(C)(C)O
LogP	0 at 20℃
CAS Datenbank	107-41-5(CAS DataBase Reference)
NIST chemische Informationen	2,4-Pentanediol, 2-methyl-(107-41-5)
EPA chemische Informationen	Hexylene glycol (107-41-5)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/38
S-Sätze:	26-36
OEL	Ceiling: 25 ppm (125 mg/m3)
WGK Germany	1
RTECS-Nr.	SA0810000
F	3-23
Selbstentzündungstemperatur	425 °C DIN 51794
TSCA	TSCA listed
HS Code	29053910
Speicherklasse	10 - Combustible liquids
Hazard Classifications	Eye Irrit. 2 Repr. 2 Skin Irrit. 2
Giftige Stoffe Daten	107-41-5(Hazardous Substances Data)
Toxizität	LD50 orally in rats: 4.70 g/kg (Smyth, Carpenter)

Gefahreninformationscode (GHS)

2-Methyl-2,4-pentanediol Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD
FARBLOSE FLüSSIGKEIT MIT CHARAKTERISTISCHEM GERUCH.
CHEMISCHE GEFAHREN
Reagiert mit starken Oxidationsmitteln und starken Säuren.
ARBEITSPLATZGRENZWERTE
TLV: 25 ppm, (als STEL, ceiling); (ACGIH 2005).
MAK: 10 ppm, 49 mg/m? Spitzenbegrenzung: überschreitungsfaktor I(2); Schwangerschaft: Gruppe D; (DFG 2006).
AUFNAHMEWEGE
Aufnahme in den Körper durch Inhalation des Aerosols.
INHALATIONSGEFAHREN
Beim Verdampfen bei 20°C tritt eine gesundheitsschädliche Kontamination der Luft nicht oder nur sehr langsam ein
WIRKUNGEN BEI KURZZEITEXPOSITION
WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt die Augen, die Haut und die Atemwege.
WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Wiederholter oder andauernder Hautkontakt kann Dermatitis hervorrufen.
LECKAGE
Belüftung. Ausgelaufene Flüssigkeit in abgedeckten Behältern sammeln. Verschüttete Flüssigkeit mit viel Wasser wegspülen. Persönliche Schutzausrüstung: Atemschutzfilter für organische Gase und Dämpfe.
R-Sätze Betriebsanweisung:
R36/38:Reizt die Augen und die Haut.
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.
Beschreibung
Hexylene glycol is a colorless liquid with amild, sweet odor. The odor threshold is 50 ppm. Molecularweight= 1 18.20; Specific gravity (H20:1) = 0.92; Boilingpoint = 197.8℃; FreezingMelting point= - 50℃ (sets toglass); Vapor pressure = 0.05 mmHg at 20℃;Flashpoint = 98.3℃; Autoignition temperature = 260℃; 306℃.Explosive limits: LEL= 1.3%; UEL= 7.4%.. HazardIdentification (basedon NFPA-704 M Rating System):Health 2, Flammability 1, Reactivity 0. Soluble in water.
Chemische Eigenschaften
Hexylene Glycol is an oily colorless liquid with a mild sweet odor. It is an oxygenated solvent derived from acetone which has two alcohol functions. It has a low evaporation rate and it is completely miscible with water.
Verwenden
hexylene glycol could be considered a solubilizer.
Verwenden
Fuel and lubricant additive; solvent in cosmetics; solvent in petroleum refining; coupling agent in hydraulic brake fluid and printing inks; gasoline anti-icer additive
Verwenden
(^+)-2-Methyl-2,4-pentanediol is used to control the flow properties of industrial products such as paints, coatings, cleansers, solvents, and hydraulic fluids. It acts as a thickening agent in cosmetic products. It serves as a coupling agent and an additive to hydraulic fluids, inks and cement. It is also employed as a blood volume expander. Further, it is used as a solvent for cleaning and colorant products. In addition to this, it is used in laboratory studies as a precipitant and cryoprotectant in protein crystallography.
Verwenden
1. Hexylene Glycol is used as a reagent in the synthesis of functionalized boronic esters. it is used in laboratory studies as a precipitant and cryoprotectant in protein crystallography.
2. Also used in the preparation of vinylboronates.
3. It is mainly used as a coupling agent and an additive to hydraulic fluids, inks and cement. Further, it is used as a solvent for cleaning and colorant products.
4. It is a potential substitute for glycol ethers.
5. It is an effective shrinkage reduction admixture or SRA for concrete and mortar.
6. It can also be used as a building block in chemical synthesis.
7. Hexylene glycol is a key solvent in many markets such as paints & coatings, metal working fluids, detergency, cosmetics & fragrances, textiles & leather.It is used to control the flow properties of industrial products such as paints, coatings, cleansers, solvents, and hydraulic fluids. It acts as a thickening agent in cosmetic products.
8. It is also employed as a blood volume expander.
Definition
ChEBI: A glycol in which the two hydroxy groups are at positions 2 and 4 of 2-methylpentane (isopentane).
Vorbereitung Methode
2-Methyl-2,4-pentanediol is prepared commercially by the catalytic hydrogenation of diacetone alcohol . It is used as a chemical intermediate, a selective solvent in petroleum refining, a component of hydraulic fluids, a solvent for inks, and as an additive for cement . Industrial exposure is likely to be from direct contact or from inhalation, particularly if the material is heated.
Allgemeine Beschreibung
Oily colorless liquid with a mild sweet odor. Floats and mixes slowly with water.
Air & Water Reaktionen
Hygroscopic. Water soluble [Hawley]
Reaktivität anzeigen
2-Methyl-2,4-pentanediol is incompatible with the following: Strong oxidizers, strong acids [Note: Hygroscopic (i.e., absorbs moisture from the air).] .
Hazard
Toxic by ingestion and inhalation; irritant to skin, eyes, and mucous membranes. Combustible.
Health Hazard
Irritation of eyes, nose and throat; headache, dizziness, and nausea.
Chemische Reaktivität
Reactivity with Water No reaction; Reactivity with Common Materials: Can catch fire when in contact with porous materials such as wood, asbestos, cloth, soil, or rusty metals; Stability During Transport: Stable at ordinary temperatures, however when heated this material can decompose to nitrogen and ammonia gases. The decomposition is not generally hazardous unless it occurs in confined spaces; Neutralizing Agents for Acids and Caustics: Flush with water and neutralize the resulting solution with calcium hypochlorite; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
mögliche Exposition
”Human Data;Primary Irritant. Hexylene glycol is used in metal workingfluids; the formulation of hydraulic brake fluids; in makingprinting inks. It is used as a fuel and lubricant additive; asan emulsifying agent; and as a cement additive.
Erste Hilfe
If this chemical gets into the eyes, remove anycontact lenses at once and irri gate immediately for at least15 min, occasionally lifting upper and lower lids. Seek med-ical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, includ-ing resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medi-cal attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.
Lager
Color Code- Green: General storage may be used.Prior to working with this chemical you should be trainedon its proper handling and storage. Before entering confinedspace where this chemical may be present, check to makesure that an explosive concentration does not exist. Store in tightly closed containlers; in a cool, well-ventilated areaaway from oxidizers (such as perox ides, perchlorates, chlo-rates, permanganates, and nitrates). Where possible, auto-matically pump liquidfrom drums orotherstoragecontainers to process containers.
Versand/Shipping
HexyleneglycolisnotcitedinDOT'SPerformance-Oriented Packaging Standards.'
läuterung methode
Dry the diol with Na2SO4, then CaH2 and fractionally distil it under reduced pressure through a packed column, taking precautions to avoid absorption of water. [Beilstein 1 IV 2565.]
Inkompatibilitäten
Incompatible with strong acids, caustics,aliphatic amines, isoc yanates, strong oxidizers. Hygroscopic(i.e., absorbs moisture from the air). .
Filter für giftige stoffe
The initial threshold screening level (ITSL) for he xylene glycol (2-methyl-2,4-pentanediol) is 1,210 μg/m3 based on a 1-hour averaging time.

2-Methyl-2,4-pentanediol Upstream-Materialien And Downstream Produkte

2-Methylpentan-2,4-diol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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