Ethanol Specification

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Specification For Absolute Alcohol

Sr.
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Characteristic
Specific Gravity at 15.60/15.60 C, Max.
Ethanol Content:
Percent by volume 15.6 C0, Max.
Miscibility with water
Alkalinity
Acidity (As CH3COOH)percent by weight Max.
Residue on evaporation percent by weight, Max.
Aldehyde content (as CH3CHO)gm/100 ml. max.
Ester Content (as CH3COOC2H5)gm/ 100 ml. Max.
Copper (as Cu), gm/100 ml. Max.
Lead (as Pb), gm/100 ml. Max.
Methyl alcohol content
Fusel Oil content
Ketones, isopropyl alcohol and tertiary butyl alcohol
Total sulfur and compounds of sulfur (as S) percent by weight, Max.
Sulfur dioxide (as SO2), percent by weight, Max.
Special Grade
0.7961
99.50
Miscible
Nil
0.006
0.005
0.10
0.02
–
–
–
–
–
0.001
0.00005
Grade – 1
0.7961
99.50
Miscible
Nil
0.006
0.005
0.006
–
0.0004
0.0001
To satisfy the requirement of the test
To satisfy the requirement of the test
To satisfy the requirement of the test
–
–
Grade – 2
0.7961
99.50
Miscible
Nil
0.006
0.005
0.10
–
–
–
–
–
–
–
–

        N.B.:- As Motor Fuel, Ethanol content (% by v/v at 15.60 C) in Absolute Alcohol shall be not less than 99.6% (v/v)

        In special applications, Absolute Alcohol with 99.6 to 99.9% ethyl alcohol content is required.  Therefore, it is necessary to product absolute alcohol with 99.9% purity and selects an appropriate technology.

ANHYDROUS ALCOHOL SPECIFICATIONS FOR FUEL USE

Fuel Ethanol Specifications: IS 15464: 2004
Absolute (Anhydrous) Alcohol
Relative Density @ 15.6/15.6 oC, Max.
Ethanol content @ 15.6 oC, vol %, v/v Min.
(excluding denaturant)
Miscibility with water
Alkalinity
Acidity (CH3COOH), mg/l, Max.
Residue on evaporation, wt%, Max.
Aldehydes, as (CH3CHO), mg/l, Max.
Copper, mg/kg, Max
Conductivity, micro S/m, Max.
Methyl alcohol, mg/l, Max.
Appearance
Special Grade
0.7961
99.6 – 99.85
Miscible
Nil
30
0.005
60
0.1
300
300
Clear & Bright
Test Method
A
B
C
D
D
E
F
G
H
J
Clear & Bright