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Bharat Petroleum Solvent and Special Products

Special Boiling Point Spirit 55/115

Special Boiling Point Spirit 55/115 - The primary use of SBP Spirit 55/115 is in the rubber industry particularly during the process of vulcanization in tyre manufacturing. It also finds usage in a variety of other applications like - 

  • Preparation of certain rubber mixes, cements and adhesives,
  • Thinner for varnish, paint and printing inks formulation where quick drying is required
  • Diluent for lacquer, enamels, high grade leather drops
  • Solvent for processing polishes, cleaning and water proofing compounds
  • Solvent for dry cleaning where quick drying time and reduced residual odour are desired
  • Fuel in gas generation plants

Specifications of Special Boiling Point Spirit 55/115 is given as under :

Sl No. Characteristics Requirements Methods of Test [P:]of IS:1448
(i) Colour (Saybolt), Min +25 [P:14]
(ii) Density at 15OC, gm/ ml To be reported [P:16]
(iii) Distillation Range :   [P:18]
  a. Initial boiling point  OC, Min 50 --
  b. 50% volume recovered at, OC To be reported --
  c. 95% volume recovered at, OC To be reported --
  d. Dry point, OC, Max 120 --
(iv) Aromatic content, % v/v, Max 35 [P:23 or 48]
(v) Copper strip corrosion for 3 hrs. at 50OC Not worse than No.1 [P:15]
(vi) Residue on evaporation, mg/ 100ml, Max 5 [P:29]
      Air-jet solvent washed

Conforms to IS:1745-1978 (Reaffirmed 2000) Specifications for Solvent 50/120

Mineral Turpentine Oil

Mineral Turpentine Oil (LAWS – Low Aromatic White Spirit) -  MTO (LAWS) finds extensive usage in the manufacture of surface coatings like paints, varnishes and lacquers. It is also used as a solvent for - textile printing with pigment colours; metal and machine degreasing; wax, rubber and resins in the manufacture of electrical insulating compounds and in preparation of bituminous paints.

Specifications of MTO is as under:

(i) Density @ 15°C, g/ml IS 1448 P :16 To be reported
(ii)> Colour (Saybolt) IS 1448 P :14 Min. +20
(iii)> Flash Point (Abel), °C IS 1448 P :20 Min. 35
(iv)> Copper Strip Corrosion(3 hrs. @ 50°C) IS 1448 P :15  Not worse than No. 1 strip
(v)> Residue on evaporation (Air Jet), mg/100 ml IS 1448 P :29 Max. 5
(vi)>  Distillation : IS 1448 P :18  
 > IBP, °C   Min. 145
 > 50 %v evaporated @,  °C   To be reported
> 90 %v evaporated @,  °C   To be reported
> FBP, °C   Max. 215
(vii)> Mercaptan Sulphur, %w IS 1448 P :109 / ASTM D:3227 Max. 0.0015
(viii)>  Residue, %v IS 1448 P :18 Max. 2.0
(ix)> Aromatics, %v IS 1448 P :23
Max 30

Conforms to IS:1745-1978 (Reaffirmed 2000) Specifications for Solvent 145/205 Low Aromatic


Hexane is a colourless solvent. Food grade Hexane is primarily used in the extraction of Edible Oils. This calls for very high purity levels of Hexane, followed by safe and careful storage, handling and transportation right from production to end use. It also finds usage in a limited manner in preparation of rubber adhesives, can sealing compounds etc.

Specifications of Food Grade Hexane is given below:

Sl No. Characteristics Requirements Methods of Test [P:]of IS:1448 Ref. To Appndx
(i) Distillation   [P:18] Method B --
  a. Initial boiling point (IBP) OC, Min 63    
  b. Dry point OC, Max 70 -- --
  c. Temperature range of final 10% OC, Max 2 -- --
(ii) Composition :      
  a. Aromatics, % v, Max 1.0 [P:63] --
  b. Saturates, % v, Min 98.5 [P:23] --
(iii) Density at 25OC, gm/ ml, Max 0.687 IS:3470-66 A
(iv) Colour (Saybolt), Min (+) 30 [P:14] --
(v) Sulphur content, ppm, Max 75 IS:3470-66 B
(vi) Copper strip corrosion, 3 hrs. at 50OC 1 [P:15] Method C --
(vii) Doctor test Negative [P:19] --
(viii) Lead, gm/ litre, Max 0.0005 IS:3470-66 C
(ix) Phosphates, ppm, Max 20 [P:54] --
(x) Chlorides (as Cl), ppm, Max 20 IS:3470-66 D
(xi) Bromine number, Max 1 [P:44] --
(xii) Non-volatile residue, gm/ 100ml, Max 0.001 IS:3470-66 E
(xiii) Reaction of non-volatile residue To pass the test IS:3470-66 F

Conforms to IS:3470-1966 Specifications for Hexane, Food Grade


Benzene is primarily used as a chemical raw material in the synthesis of plastics, rubber, phenols, nylon, resins, detergents and other products used in the production of drugs, dyes, insecticides and plastics.

Specifications of Benzene (ex. MR) is given below:

Appearance Visual Clear liquid free of sediment and haze when observed at 18.3oC to 25.6oC.
Colour ASTM D-1209 Max. 20  on Pt-Co scale 
Relative density at 15.56/15.56°C  ASTM D-4052 0.8820  to  0.8860
Distillation range ASTM D-850 Not more than 1oC including the temp. of 80.1oC.
Sulphur compounds ASTM D-853 Free of H2S & SO2
Solidification point, oC. ASTM D-852 Min. 5.2
(Being not lower than 4.85oC  anhydrous basis)
Acidity ASTM D-847 No free acid, i.e. no evidence of acidity
Acid Wash Colour ASTM D – 848 Not darker than No. 2 Colour Standard.
Copper Strip Corrosion (1 hr. @ 100° C) ASTM D-849 Passes 1A or 1B

Conforms to ASTM Grade D835-90  of Nitration grade Benzene


Toluene is primarily used in the manufacture of chemical, drugs, explosives, food flavouring and sweetening agents, paints, and resins.

Specifications of Toluene is given below:

Characteristic Requirement Methods of Test, Ref to Annex/IS/ASTM
(i) Toluene, percent by mass 99.8     ASTM D 2360 (By gas chromatography)
(ii) Appearance Clear liquid free of sediment and haze
when observed at 18.3 to 25.6°C
(iii) Colour, platinum-cobalt scale, Max 10        IS 8768
(iv) Relative density at 15.56/15.56°C or 0.869-0.873  
  Density, 20°C, g/ml    0.865-0.870     A
(v) Total sulphur, ppm, Max 1) B
(vi) Distillation range including the temperature 110.6°C
at 101.3 kPa (760 mm of Hg pressure), Max, °C
0.6 C
(vii) Non-aromatic hydrocarbons, Max, percent by mass 0.1       D
(viii) Benzene content, mg/kg, Max 500 ASTM D 236
(ix) Thiophene content 1) ASTM D 4375
(x) C 8 + Aromatics, ppm, Max 1 000   ASTM D 2360
(xi) Hydrogen sulphide (H2S) and sulphurdioxide (SO2) Absent E
(xii) Water content, ppm 500 By Karl Fischer method

NOTE — If purity by GC method [see Sl No. (i)] is carried out, distillation test is optional. As agreed between the purchaser and the supplier.

Conforms to IS 537:2011 (Second Revision)


BPCL has taken up integrated refinery expansion project (IREP) to enhance the capacity of its Kochi Refinery from 9.5 MMTPA currently to 15.5 MMTPA. The Refinery at Kochi, post expansion, will produce 0.5 Million Tonnes of Propylene which it plans to utilize by producing high value niche petrochemicals like Acrylic Acid and its derivatives like Acrylates, Oxo-alcohols & Super Absorbant Polymer (SAP).

BPCL will engage in marketing of the following grades of Petrochemicals:

  • Acrylic Acid (AA)
  • Butylacrylate Monomer (BAM)
  • 2 Ethylhexyl acrylate (2EHA)
  • 2 Ethylhexanol (2EH)
  • Iso Butanol
  • N Butanol
  • Super Absorbent Polymer (SAP)