4,4'-DITHIODIMORPHOLINE

PRODUCT IDENTIFICATION
CAS NO. 103-34-4

4,4'-DITHIODIMORPHOLINE

EINECS NO. 203-103-0
FORMULA C8H16N2O2S2
MOL WT. 236.36

H.S. CODE

 3822.00.5090

UN NO.

 

TOXICITY

 Oral rat LD50: 5600mg/kg
SYNONYMS N,N'-Disulfidemorpholine; DTDM; Sulfasan R;
Dimorpholine N,N'-disulfide; 4,4'-Dithiobis(morpholine); 4,4'-Dithiodimorpholine; Dimorpholinodisulfide; Bismorpholino disulfide; N,N'-Dithiodimorfolin; 4-(4-Morpholinyldisulfanyl)morpholine; Other RN: 39393-19-6

SMILES

 N1(SSN2CCOCC2)CCOCC1

CLASSIFICATION

 Rubber vulcanizing agent

EXTRA NOTES

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE white crystalline powder

MELTING POINT

 124 - 130 C
BOILING POINT  
SPECIFIC GRAVITY 1.28 - 1.36

SOLUBILITY IN WATER

insoluble

pH  
VAPOR DENSITY  
log P(o/w) -1.47 (Octanol-water)
OH RATE CONSTANT 3.75E-10 (cm3/molecule-sec at 25 C Atmospheric )
AUTOIGNITION

 

REFRACTIVE INDEX

 

NFPA RATINGS

Health: 1, Flammability: 1, Reactivity: 0

FLASH POINT

154 C

STABILITY Stable under ordinary conditions

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking (Vulcanization)

Material Safety Data Sheet (Flexsys)

Google Scholar Search

Local: Morpholine is a hygroscopic, weak basic, oily and  volatile liquid; with a characteristic amine odor; melting point -5 C,  boiling point at 129 C; miscible with water and with many alcohol organic solvents such methanol, ethanol, acetone, ethers, BTX (it is used as a solvent itself), but has limited solubility in alkaline solutions. It decomposes on heating resulting toxic nitrogen oxides and violently reacts with strong oxidants resulting fire hazard and attacking copper and its compounds. It can be prepared by the reductive ammonation of diethylene glycol with hydrogen, by the dehydration of diethanolamine with a strong acid (oleum) and by heating bis(chloroethyl)ether with excess ammonia. It is a cyclic amino ether as well as a secondary amine. 1,4-Dioxane is the form which nitrogen atom is replaced by oxygen. The ether property of morpholine is typically inert. The secondary amine property involves in the most chemical reactions. Morpholine is a versatile chemical. It is used as a solvent itself for resins, dyes, and waxes. Its alkyl derivatives (e.g. N-methylmorpholine, N-ethylmorpholine) are used as a catalyst for the production of polyurethane foams. Nitrogen in ring system involves in the introduction of sterically demanding asymmetric center to achieve effective stereocontrol. Morpholine has a similar volatility with water. It is used as a pH adjustment additive in fossil fuel and steam systems as a corrosion inhibitor. The most important use is as a chemical intermediate to prepare below compounds:

  • Rubber chemicals for vulcanization and stabilization
  • Corrosion inhibitors in boiler water treatment system and in aqueous hydraulic liquids to protect metals against corrosion and tarnish by acid fumes.
  • Optical brighteners which are stable to chlorine bleaches for the use in detergent formulations
  • Fatty acid salts for the formulation of water-resistant emulsifier or plasticizer in toiletry and cosmetic products.
  • Sulfonamide bactericides or disinfectants
  • Quaternary morpholinium salts for hair conditioners and deodorant products
  • Colourants for hair dyes and blueprints
  • Pharmaceuticals (analgesics, local anaesthetics, antibiotics, antimycotics and for anti-plaques)

4,4'-Dithiodimorpholine is a sulfur donor in vulcanization cure system.

SALES SPECIFICATION

APPEARANCE

 white to off-white crystalline powder

MELTING POINT

120 - 130 C

SIEVE ANALYSIS

1.0% max (60µm) , 1.0% max (850µm)

HEAT LOSS

0.5% max

OIL CONTENT

1.0 - 2.0%

ASH

0.5% max

TRANSPORTATION
PACKING 25kgs in fiber drum
HAZARD CLASS  
UN NO.  

PRICE INFORMATION