544-40-1

Name	Dibutyl sulfide
CAS	544-40-1
EINECS(EC#)	208-870-5
Molecular Formula	C8H18S
MDL Number	MFCD00009468
Molecular Weight	146.29
MOL File	544-40-1.mol

Chemical Properties

Appearance	colourless liquid with a very unpleasant smell
Melting point	-76 °C (lit.)
Boiling point	188-189 °C (lit.)
density	0.838 g/mL at 25 °C(lit.)
vapor density	5.07 (vs air)
vapor pressure	5.17 mm Hg ( 37.7 °C)
FEMA	2215
refractive index	n20/D 1.452(lit.)
Fp	170 °F
storage temp.	Store below +30°C.
form	Liquid
color	Clear colorless to very slightly yellow
Odor	at 0.10 % in dipropylene glycol. green grassy violet-leaf herbal rose geranium
Stability:	Stable. Combustible. Incompatible with strong oxidizing agents.
Odor Threshold	0.00051ppm
Odor Type	alliaceous
Water Solubility	Silghtly miscible with water. Miscible with olive oil and almond oil.
JECFA Number	455
Merck	14,1590
BRN	1732829
Dielectric constant	4.4100000000000001
InChIKey	HTIRHQRTDBPHNZ-UHFFFAOYSA-N
LogP	3.87
CAS DataBase Reference	544-40-1(CAS DataBase Reference)
NIST Chemistry Reference	Di-n-butyl sulfide(544-40-1)
EPA Substance Registry System	544-40-1(EPA Substance)

Safety Data

Hazard Codes	Xi
Risk Statements	R36/37/38:Irritating to eyes, respiratory system and skin . less more
Safety Statements	S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . S24/25:Avoid contact with skin and eyes . less more
RIDADR	2810
WGK Germany	2
RTECS	ER6417000
F	13
TSCA	Yes
HazardClass	6.1(b)
PackingGroup	III
HS Code	29309070
Toxicity	LD50 orally in Rabbit: 2220 mg/kg less more

Raw materials And Preparation Products

Hazard Information

Chemical Properties

Butyl sulfide has an herbaceous, green, garlic, onion, heavy odor.

Chemical Properties

colourless liquid with a very unpleasant smell

Occurrence

Reported found in raw cabbage, cooked beef and mushrooms.

Uses

Di-n-butyl sulfide is generally used as an agricultural intermediate, a sulfiding agent, a refinery catalyst, a lubricant additive, a gas odorant and a processing aid in mining applications. It finds application as an internal standard in X-ray fluorescence spectrometry (XRF) measurements of sulfur in oils and other liquid hydrocarbon matrices.

Definition

ChEBI: Dibutyl sulfide is an aliphatic sulfide.

Preparation

From butyl bromide and sodium sulfide in boiling ethanol; according to some authors two forms exist, exhibiting different boiling points but identical solubilities in various solvents; both forms are insoluble in water.

Aroma threshold values

Recognition: 0.88 ppb

Synthesis Reference(s)

Journal of the American Chemical Society, 73, p. 2251, 1951 DOI: 10.1021/ja01149a096
Tetrahedron Letters, 29, p. 4477, 1988 DOI: 10.1016/S0040-4039(00)80527-4

General Description

SRM 2720_cert SRM 2720 _SDS

Biochem/physiol Actions

Taste at 5 ppm

Purification Methods

Wash the sulfide with aqueous 5% NaOH, then water. Dry with CaCl2 and distil it from sodium. [Beilstein 1 IV 1559.]

Material Safety Data Sheet(MSDS)

Questions And Answer

Spectrum Detail

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544-40-1

Chemical Properties

Safety Data

Raw materials And Preparation Products

Raw materials

Hazard Information

Chemical Properties

Chemical Properties

Occurrence

Uses

Definition

Preparation

Aroma threshold values

Synthesis Reference(s)

General Description

Biochem/physiol Actions

Purification Methods

Material Safety Data Sheet(MSDS)

Questions And Answer

Description

References

Spectrum Detail

Well-known Reagent Company Product Information

Supplier

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