11104-28-2 Usage
Description
AROCHLOR 1221 is a viscous, oily, colorless to light yellow liquid with a faint, characteristic, aromatic-type odor. It is a type of polychlorinated biphenyl (PCB) that has been used in various industrial applications due to its chemical stability, low flammability, and high electrical insulating properties.
Uses
Used in Plastics and Polymers Industry:
AROCHLOR 1221 is used as a plasticizer for polystyrene and in polyvinyl acetate to improve fiber-tear properties. It enhances the flexibility and workability of the materials.
Used in Adhesives and Sealants Industry:
AROCHLOR 1221 is used in epoxy resins and polyvinyl acetate to improve adhesion and resistance to chemical attack. It helps in creating strong bonds and increasing the durability of the adhesives and sealants.
Used in Electrical Industry:
AROCHLOR 1221 serves as an insulating fluid for electric condensers. Its high electrical insulating properties make it suitable for use in transformers and capacitors.
Used in Lubricants Industry:
AROCHLOR 1221 is used as an additive in very high-pressure lubricants. It helps in reducing friction and wear, thereby increasing the efficiency and lifespan of the machinery.
Used in Pesticides Industry:
AROCHLOR 1221 has been used in chlordane and BHC insecticide formulations to increase the effective kill-life of the lindane spray up to 10 times. It enhances the effectiveness of the pesticides.
Used in Ballasts Industry:
AROCHLOR 1221 was used in fluorescent and high-intensity discharge ballasts manufactured prior to 1979. It contributed to the proper functioning and performance of the ballasts.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Simple aromatic halogenated organic compounds are very unreactive. Reactivity generally decreases with increased degree of substitution of halogen for hydrogen atoms.
Health Hazard
ACUTE/CHRONIC HAZARDS: Toxic irritant. Hazardous decomposition products.
Fire Hazard
Some may burn but none ignite readily. Containers may explode when heated. Some may be transported hot.
Safety Profile
Suspected human
carcinogen. Moderately toxic by ingestion
and skin contact. Experimental reproductive
effects. When heated to decomposition it
emits toxic fumes of Cl-. Used in heat
transfer, hydraulic fluids, lubricants, and
insecticides. See also
POLYCHLORINATED BIPHENYLS.
Environmental fate
Biological. Reported degradation products by the microorganism Alcaligenes BM-2 for a
mixture of polychlorinated biphenyls include monohydroxychlorobiphenyl, 2-hydroxy-6-
oxochlorophenyl-hexa-2,4-dieonic acid, chlorobenzoic acid, chlorobenzoylpropionic acid,
chlorophenylacetic acid, and 3-chlorophenyl-2-chloropropenic acid (Yagi and Sudo, 1980).
In sewage wastewater, Pseudomonas sp. 7509 degraded PCB-1221 into a yellow compound
tentatively identified as a chlorinated derivative of α-hydroxymuconic acid (Liu, 1981). When
PCB-1221 was statically incubated in the dark at 25 °C with yeast extract and settled domestic
wastewater inoculum for 7 d, significant biodegradation with rapid adaptation was observed
(Tabak et al., 1981).
In activated sludge, 80.6% degraded after a 47-h time period (Pal et al., 1980).
Chemical/Physical. Zhang and Rusling (1993) evaluated the bicontinuous microemulsion of
surfactant/oil/water as a medium for the dechlorination of polychlorinated biphenyls by
electrochemical catalytic reduction. The microemulsion (20 mL) contained didodecyldimethylammonium
bromide, dodecane, and water at 21, 57, and 22 wt %, respectively. The catalyst
used was zinc phthalocyanine (2.5 nM). When PCB-1221 (72 mg), the emulsion and catalyst were
subjected to a current of mA/cm2 on 11.2 cm2 lead electrode for 10 h, a dechlorination yield of
99% was achieved. Reaction products included a monochlorobiphenyl (0.9 mg), biphenyl, and
reduced alkylbenzene derivatives.
PCB-1221 will not hydrolyze to any reasonable extent (Kollig, 1993).
At influent concentrations of 1.0, 0.1, 0.01, and 0.001 mg/L, the GAC adsorption capacities were
242, 48, 9.5, and 1.9 mg/g, respectively (Dobbs and Cohen, 1980).
Check Digit Verification of cas no
The CAS Registry Mumber 11104-28-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,1,1,0 and 4 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 11104-28:
(7*1)+(6*1)+(5*1)+(4*0)+(3*4)+(2*2)+(1*8)=42
42 % 10 = 2
So 11104-28-2 is a valid CAS Registry Number.