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  • Place of Origin: West Bengal, India
  • Usage: Building Coating
  • Application Method: Spray
  • Brand Name: STP LTD

Specifications

Coal Tar Pitch
SPECIALLY PROCESSED COAL TAR PITCH FOR ALUMINUM, GRAPHITE AND REFRACTORY INDUSTRIES

Coal Tar Pitch
SPECIALLY PROCESSED COAL TAR PITCH FOR ALUMINUM, GRAPHITE AND REFRACTORY INDUSTRIES

Description
Coal Tar Pitch is a specially processed Pitch, produced from controlled distillation of coal tar. It is an important raw material for the manufacturing process for aluminum and steel in electric arc furnaces. The aluminum industry uses Coal Tar Pitch as a binding agent in the production of carbon anodes. STP Limited has been a leading supplier of quality grade Coal Tar Pitch to the aluminum industries, which enables smelters to produce metal cost efficiently and environment friendly.
Technical Data
Coal Tar Pitch is classified into the following grades:
Values
Characteristics Soft Pitch
Soft
Medium
Pitch
Hard
Medium
Pitch
Hard Pitch
Aluminum
Grade
Pitch
Graphite
Grade Pitch
Other
Grades
Pitch
Softening Point (R&B), °C 45-55 58-68 70-80 82-92 101-113 95-110 80-90
Quinoline Insoluble, % 1-3 3-5 5-6 6-7 7-12 10-16 8 max.
Toluene Insoluble, % 25 max 28 max 30 max 35 max 32-36 22 min. 20 min.
Coking Value, % 38 min 40 min 45 min 50 min. 56.5-61.0 53 min. 45 min.
Ash, %, max. 0.50 0.50 0.75 0.80 0.25 0.30 0.30
Moisture, %, max. Nil 0.50 0.50 Nil
Beta Resin, %, min. -- 20-25 20-24 12
Viscosity, cPs, 160°C, max -- 3000 2000 3000
Specific Gravity, 27°C, min 1.20-1.30 1.22-1.32 1.28-1.32 1.28-1.38 1.30 1.30 1.28-1.30
Distillate, % by weight, max
0-270°C 4 4 3 No test -- -- --
0-300°C 8 8 4 No test 1 -- 1
The specifications are indicative and materials are manufactured strictly as per the customers specific requirements.
Standard
Conforms to the specification of ASTM and IS 216 standards. Coal Tar Pitch serves as a valuable ingredient in production of number of waterproofing, protective and binding compounds in masonry, steel and timber industry. It is also used for waterproofing concrete structures, decks, as a saturant for roofing felts, flooring mastics, base for anticorrosive paints, coal briquettes and damp proof courses.

Packaging
Coal Tar Pitch is delivered in both solid and liquid form. Solid Coal Tar Pitch is available in:
50 kg HDPE bags 1 MT Jumbo bags and in drums.
Liquid Coal Tar Pitch is supplied through:
Specially designed dedicated insulated tankers.
Storage
1 year in original unopened packing. Protect containers from physical damage, sparks and flames. Avoid dust generation. Liquid Coal Tar Pitch should be unloaded and stored under liquid condition under insulation.
Quality Control
Coal Tar Pitch is manufactured under stringent quality control. Our company maintains its own laboratory and scientific staff to monitor the manufacture and testing of the pitch to the recognised standards.
Technical Services
Other technical data and device are available on request. STP Limited leads the world in the quality and expertise of its technical support services. A company executive will reach at minimal notice to assist with site application problems, should they arise, or to provide help with any kind of technical support.
Health and Safety
Pitch vapors and dust are irritating to the skin, eyes and respiratory tract. Direct skin contact with coal tar pitch dust and/or high vapor concentrations may cause burning and itching, changes in pigmentation, and skin eruptions. When accentuated by sunlight, skin exposure may result in a phototoxic skin reaction. Direct eye contact with the dust may cause inflammation, discomfort and conjunctivitis. In general, acute oral toxicity is expected to be moderate, but ingestion is not likely to be a primary route of exposure. Symptoms of systemic poisoning after ingestion of other coal
tar products include salivation, nausea, vomiting, abdominal discomfort, respiratory difficulties, dizziness, headache, loss of pupillary reflex, cyanosis, hypothermia, and mild convulsions. It is assumed that ingestion of pitch would produce similar symptoms. Care should be taken to ensure that exposure limits for dust are not exceeded if pitch dust is present (OSHA PEL for particulates = 15 mg/m3 for total dust; 5 mg/m3 for respirable fraction). Usage of gloves and filter-type mask is recommended in the application area. Do not smoke when using Coal Tar Pitch. In case of fire, use CO2 dry powder or fine water spray. There should be adequate ventilation in areas of application.
In case of accidental contact, wash with cold water and seek medical help immediately. Barrier cream should preferably be applied for skin protection before commencement of work. In case of skin contact with hot enamel, immerse in cold water.

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