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ArocLor 1342
"Monsanto
Aroclor is Monsanto's trade mark for its capacitor impregnant composed of chlorinated biphenyl.
Aroclor is classed as a capacitor askarel. The term "askarel" as defined by ASTM, generally describes a broad class of non-flammable synthetic chlorinated hydrocarbon insulating liquids widely used in capacitors operated at power frequencies.
Aroclor was first used in U.S.A. in 1929 and it now extensively used by the capacitor industry throughout the world. Monsanto has been producing Aroclor at its Newport plant since 1951.
Aroclor has been used in impregnated paper capacitors since its introduction into industry. In more recent years its use hat been extended to capacitors in which polypropylene film forms part of the dielectric.
Aroclor impregnated capacitors are used mainly to operate at power frequency. Some are used - with water cooling - at high frequencies and some - with suitable additives - in D.C. circuits.
Aroclor 1342
In recent years most capacitor manufacturers switched their pro duction to use mainly trichloro biphenyl sold under the Monsanto name of Aroclor 1242. This grade offered the best cost performance and was essentia! for capacitors operating in a cold environment.
More recently Aroclor 1242 has been replaced by Aroclor 1342. It is functionally similar to Aroclor 1242 but has been modified to
Aroclor it a Raglttarad Trada Mark
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reduce the content of highly chlorinated components. The reason for this change is that environmental studies suggest that the more highly chlorinated components, especially those containing five and six chlorine atoms per modecule, are more persistent and therefore more likely to accumulate in the environment. Aroclor 1342 complies with the CIGRE recommendations that capacitor askarels should not contain more than 3.5% of pentachlorobiphenyl and more highly chlorinated biphenyls.
Advantages of Aroclor
1. Capacitors having the least volume and mass per unit of reactive power can be built.
2. Raw material costs can be reduced because of this higher efficiency.
3. Labour costs can be reduced because smaller windings are required and plant throughput is increased.
4. Overload security is provided by uniform permittivity of impregnant and paper and in the case of mixed dielectric capacitors the stress is transferred to the polypropylene film.
5. Long lasting capacitors result from high stability and resistance to oxidation.
6. Reduced fire hazard.
2 HONS 071958
Tentative Sales Specification
Property
Test Method
Colour Clarity Density at 20 C (kg/m1) Retractive Index at 20 C Viscosity at 20 C (Csiks) Fire Point Pour point (C) Neutralisation number (mg. KOH/g) Inorganic Chlorides (ppm) Water content (ppm) Hydrolisablc Chlorals (ppm) Thermal stability (ppm) Penta and higher chlorinated Biphenyls (%) Volume Resistivity at 100 C
500 V, after 1 min. (G ohm. m) Dissipation Factor at 100 C and 50 Hz Permittivity at 100" C and 50 Hz
ASTMD 1702 ASTM D1702 ASTM D 1810/ISO R649 ASTMD 12TB ASTM D 445 ASTM D 92 ASTM D 97 Monsanto ASTM D 1821 ASTM D 1533/ISO R760 ASTM D 2441 ASTM D 1936 CIGRE Method
Monsanto Monsanto Monsanto
Limits
50 max. Clear 1365- 1385 1.6230- 1.6266 41 - 61 None to boiling -- 18 max. 0.01 max. 0.1 max. 30 max. 1.0 max. 0.5 max. 3.5 max.
20 min. (1) 0.02 max. (2) 4.7 - 5.1
(1) Fut deliver ics in drums over long distances relaxed to 10 (min.) (2) For 'liMvnries in drums over long distances relaxed to 0.04 (max.)
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Storage, Handling and Disposal of Aroclor
CAUTION
Aroclor contains POLYCHLORINATED BIPHENYLS (PCBsl which some studies have shown may be persistent, an environmental con taminant and, possibly, injurious to certain forms of bird, aquatic and animal life.
DRUMS
Inside storage is recommended to prevent contamination of the product by water. If the drums have to be stored outside they should be stacked on their sides to prevent water accumulating around the bungs and being breathed into the drum during severe ambient temperature changes.
Drum storage areas should be organised so that any leakages are collected for safe disposal.
Partially emptied drums should not be left open to the air.
BULK
The supply of Aroclor in bulk tank car loads, offers many advantages to medium and large volume users, compared with drum deliveries. Unloading, storing and transferring to the production unit is safer, easier, faster and cheaper. Material losses due to spillage and incom plete emptying of drums are eliminated. The possibility of product contamination during handling is greatly reduced.
Even where storage and handling facilities are not at present available, the economics of bulk handling may quickly pay for the tanks and piping systems required.
A booklet indicating the type of system necessary for the efficient handling of Aroclor in bulk is available from Monsanto.
As soon as a changeover to bulk delivery is contemplated, experi enced Monsanto personnel will be available for site discussions regarding the most efficient type of installation for the particular location and an offloading procedure appropriate to that particular installation.
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Handling Precautions
Aroclor drums and containers carry the following label which gives general instructions for handling:
IMPORTANT CHLOROBIPHENYLS (42%-64%) (or 60%) (PCBI
This product contains POLYCHLORINATED BIPHENYLS (PCBs) which some studies have shown may be persistent, an environmental contaminant and, possibly, injurious to certain forms of bird, aquatic and animal life. PREVENT ANY ENTRY INTO THE ENVIRONMENT THROUGH SPILLS, LEAKAGE, DISPOSAL, VAPOURISATION, RE-USE OF CONTAINERS OR OTHERWISE.
SPILLS, LEAKAGES AND WASTE PROOUCTS MUST BE COLLECTED.
Use of this product must be restricted to applications which can he controlled so that entry into the environment does not occur and to applications in which it cannot come into contact with food, animal feedstuffs or pharmaceuticals.
HARMFUL SUBSTANCE IF TAKEN INTERNALLY OR IF IN PROLONGED CONTACT WITH THE SKIN.
CAUSES IRRITATION OF SKIN AND EYES.
OURINGSHIPMENT AVOID SPILLS AND LEAKAGE INTO INLAND WATERWAYS AND THE SEA.
Store away from food, animal feedstuffs and pharmaceuticals. Keep container tightly closed. Do not eat or smoke when using. Avoid breathing vapours, mist or fumes. Do not wear contaminated clothing. Wash product from skin with soap and water. Wash eyes by flushing with water.
In addition to the foregoing we can add that:
1. Animal toxicity tests (small mammals) indicate that acute oral toxicity is low but that acute dermal toxicity may be moderate.
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2. When handling the fluid minimise contact with the skin and wash any off with soap and water. People with sensitive skins should wear gloves resistant to chlorinated solvents or apply a silicone hand cream.
3. Should Aroclor accidentally splash or be rubbed into the eyes, they should be rinsed thoroughly with water for a few minutes. It is suggested that all operators be provided with safety glasses as Aroclor will cause pain if it gets into the eyes.
4. Elementary rules of hygiene should be applied -- such as not smoking, eating or drinking during handling and contaminated clothing should be discarded.
5. Aroclor should be handled at ambient temperatures in well ventilated areas. If hot Aroclor has to be handled, a respirator with an active carbon canister should be worn.
Disposal of Empty Drums and Waste Aroclor
Handling Aroclor in bulk will minimise the problems associated with handling of drums. Waste Aroclor should be disposed of by special high temperature incineration at 1000 C minimum with a residence time of 1.5 seconds or longer or alternatively by a method conform ing to local regulations. Empty drums should not be re-used for any thing except scrap Aroclor. If this is not possible each drum should be rinsed twice with kerosene and the washings incinerated as above. Drums should then be crushed and buried on an approved toxic dump in accordance with local regulations.
Care must be exercised during such disposals and the ultimate use of Aroclor to avoid pollution particularly of sewers and waterways.
Published by Monsanto Europe S.A. 16-1 (6) M-6-2 (2/76)
Prlntad In England
Tha information In this builatin la to our batt knowladga trua and accurata but all instructions, racommandttions or auggaationa ara mada without goarantaa. Sinco tha condition! of uaa ara oayond tftalr control, Monaanto Company and Ita aubafdlarlat datlilw any liability for ioaa or damaoa suffarad from uaa of thoaa data or auggoatlona. Purtharmoro no liability la accaptad if uaa of any product In accordanca with thaaa data or auggoatlona Infrlngaa any patant.
Tha Information, racommandationa and auggaationa mada haraln ara offarad In tha light of pravailing lagitlaiton and on tha baaia of praaant aciantific information (197B) available to Monaanto.
MCHS 071963
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Monsanto
Silos Offices in principal ernes of Europe
HEAD OFFICE
Monsanto Europe S.A. Ptace Madou. 1 6-1030 Brussels, Belgium Telephone: (02) 219 11 01 Telex: 22110/21986
AUSTRIA;
Monsanto GmbH. A-1010 Vienna Rudolfsplatz 12 Telephone: 63 88 31 Telex: 07/5601
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Monsanto Europe N.V. Mechelsesteenweg 163 B-2000 Antwerp Telephone: (031) 30 58 40 Telex: 31 657
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Monsanto A/S 6 Rysensteensgade DK-1564 Copenhagen V
Telephone: (01) 12.88.38 Telex: 19556
FINLAND:
Monsanto Scandinavia AB Arkadiankatu 8 C 20 SF-00100 Helsinki 10 Telephone: 441186 Telex: 12841
FRANCE:
Soci6t6 Monsanto 9, rue d'Argenson F-75008 Paris Telephone: 265 65 20 Telex: 65281
GERMANY:
Monsanto (Deutschland) GmbH. D-4000 Dusseidorf ImmermannstiaUe 3
Telephone: 0211/3 67 51 Telex: 858-1307
ITALY:
Monsanto Italians S.p.A.
Via Melchiorre Gioia, 8 1-20124 Milano
Telephone: 6273 Telex: 34659
NETHERLANDS: Monsanto N.V. Jan van Naesaustraat 53-66 NL-The Hague Telephone: 070/246015 Telex: 32208
NORWAY: Monsanto Norge AS Fred Olsensgt 11 N-Oslo 1 Telephone: (02) 20 48 68 Telex: 19106
POLAND:
Monsanto Poland Inc. The Forum Hotel UI. Nowogrodzka 24/26 00511 Warsaw Telephone: 282613 Telex: 814704
SPAIN: Monsanto Iberica S.A. Lepanto 360 E-Bercelona 13 Telephone: 256 10 00 Telex: 63050
SWEDEN: Monsanto Scandinavia A8 Ulvsundavftgen 108 S-16111 Bromma-11 Telephone: (08) 80 28 30 Telex: 17359
SWITZERLAND:
Monsanto (Sutaae) SA Postfach CH-5600 Lenzburg Telephone: (064) 61 67 51 Telex: 68855
UNITED KINGDOM: Monsanto Limited 10-18 Victoria Street London SW1H0NQ Telephone: 01 -222 6678 Telex: 916093
MOMS 071964