Tono Frost 593 is a pre-inhibited propylene glycol-based heat transfer fluid that prevents corrosion through its inhibitor package. It has applications in areas like beverage production, food processing, and pharmaceuticals. The document provides information on its properties, such as specific heat and thermal conductivity at different temperatures and concentrations. It also discusses the advantages of using Tono Frost 593 over uninhibited propylene glycol, such as reducing maintenance costs and power consumption through improved heat transfer efficiency and prevention of corrosion-related issues.

1. TONO
FROST®
593
Heat Transfer Fluid
Based on Pre-Inhibited
Propylene Glycol - FFG

2. 1. About Us 03
2. Introduction to Heat Transfer Fluids (HTF) 04
3. What is Tono Frost 593? 05
4. Areas of Application 06
5. Physicochemical Data 07
6. Typical Properties of Tono Frost 593 08
6.1 Specific Heat 09
6.2 Thermal Conductivity 10
7. Freeze Protection Volume 11
8. How does corrosion happen? 11
9. Effects of corrosion 12
10. Advantages of using Tono Frost 593 14
11. Corrosion Testing Results 15
12. Corrosion in Glassware 16
13. Material Compatibility 16
14. Dilution Water Quality 17
15. System Operation Protocol 17
16. Dosage & Quantity Calculation 18
17. Precaution & Safety 19
18. Storage & Handling 19
19. Packaging 19
INDEX
TONO
FROST®
593

3. 3
593 Series
ABOUT US
has come a long way in
contributing to the speciality
chemicals requirements of the
Asian sub-continent.
Our recent expansion into
newer geographies reinforces
our aim to become a truly
global player in the speciality
chemicals space. As a company
we are committed to the social
and economic progress of the
countries we enter. Our rapid
growth in the recent years
is leading the company to a
promising future.
Chemtex Speciality Limited
enjoys a considerable market
share in specialty chemicals
section with branches catering.
1970
Five decades
in the chemical
industry
24K+
Clients served globally
Five decades
in the chemical
industry
Clients served globally
600+
High performance
chemicals
High performance
chemicals
1970
24K+
600+
Agriculture
Cleaning & Hygiene
Engine Care
Oil & Gas
Water Treatment
Housekeeping & Laundry
Refrigerator
& Air Conditioner
... and other industry
specific actions.
50 YEARS RUNNING,
CHEMTEX SPECIALITY LIMITED

4. 4 593 Series
INTRODUCTION
TO HEAT
TRANSFER FLUID (HTF)
Heat transfer fluids control operating
temperature of a mechanical setup,
protecting the systems from overheating
and/or freezing, and preventing failures
under sub-zero and HP/HT (High Pressure/
High Temperature) conditions.
THE PRIMARY FUNCTIONS
OF A HEAT TRANSFER FLUID
ARE AS FOLLOWS:
• Act as heat transfer media with Anti-Boil and Anti-Freeze
properties
• Inhibits scale and corrosion
• Prevents foaming and bacterial development
• Maintain design efficiency in HP/HT conditions
• Dye for leak detection (optional)

5. 5
593 Series
WHAT IS
TONO FROST®
593?
TONO FROST 593 FFG is Inhibited Propylene
Glycol, used as an industrial coolant, antifreeze
heat transfer agent in process cooling system.
The inhibitor package is designed to protect
brass, copper, solder, steel, cast iron and other
metals commonly found in the industrial cooling
application.
PRE-INHIBITED PROPYLENE GLYCOL
The effectiveness of TONO FROST 593 FFG in
preventing corrosion has been proven in extensive
laboratory and in actual service tests. Using TONO
FROST 593 FFG for heat transfer applications instead
of brine solutions or uninhibited propylene glycol
reduces maintenance costs and improves heat
transfer efficiency.
Brass
Cast Iron
Steel
Copper

6. 6 593 Series
APPLICATION
AREAS
Beverages & Juices
Fish Processing Units
Dairy & Ice Cream
Poultry Processing Industry
Breweries & Distilleries
Pharmaceutical & Bulk Drugs
Packaged Food Freezing
Vegetable oil industry

7. 7
593 Series
PHYSICOCHEMICAL
DATA
ATTRIBUTES UOM TYPICAL VALUE
Form - Clear liquid
Appearance - Colorless*
pH of the solution - 10.0 ± 1.0
Specific Gravity - 1.065 (min.)
Maximum Operating
Temperature
°C 121
Freezing Point °C - 65
Propylene Glycol FFG
Concentration
% by vol. 96.5% ± 0.5
Inhibitor package
and water FFG
% by vol. 3.5% ± 0.5
Solubility - Soluble in water and glycol
*Also available in Fluorescent Green color

8. 8 593 Series
TYPICAL
PROPERTIES
OF TONO
FROST 593
(CONCENTRATION
SELECTION GUIDE)
PROPYLENE GLYCOL
CONCENTRATION
(% BY VOL.)
FREEZING
POINT
(°C)
BOILING
POINT
(°C)
SPECIFIC
GRAVITY
(20 °C)
5% -1.2 100.0 1.00325
10% -2.8 100.0 1.0065
15% -4.6 100.0 1.00975
20% -6.3 100.6 1.013
25% -8.1 101.1 1.0162
26% -8.5 101.1 1.0169
27% -8.9 101.1 1.01755
28% -9.4 101.7 1.0182
29% -9.8 101.7 1.01885
30% -10.2 102.2 1.0195
31% -10.8 102.2 1.02015
32% -11.4 102.2 1.0208
33% -11.9 102.2 1.02145
34% -12.7 102.2 1.0221
35% -13.6 102.8 1.0227
36% -14.5 102.8 1.0234
37% -15.5 102.8 1.02405
38% -16.4 103.3 1.0247
39% -17.4 103.3 1.02535
40% -18.3 103.9 1.026
41% -19.1 103.9 1.02665
42% -19.9 103.9 1.0273
43% -20.8 103.9 1.02795
44% -21.6 103.9 1.0286
45% -22.4 104.4 1.02925
46% -23.4 104.4 1.0299
47% -24.3 104.4 1.03055
48% -25.2 105.0 1.0312
49% -26.1 105.0 1.03185
50% -27.1 105.6 1.0325
51% -28.0 105.6 1.03315
52% -29.0 105.6 1.0338
53% -29.9 106.1 1.03445
54% -30.8 106.1 1.0351
55% -31.8 106.1 1.03575
56% -32.7 106.1 1.0364
57% -33.6 106.7 1.03705
58% -34.5 106.7 1.0377
PROPYLENE GLYCOL
CONCENTRATION
(% BY VOL.)
FREEZING
POINT
(°C)
BOILING
POINT
(°C)
SPECIFIC
GRAVITY
(20 °C)
59% -35.4 106.7 1.03835
60% -36.3 107.2 1.039
65% A 108.3 1.0422
70% A 110.0 1.0455
75% A 113.9 1.04875
80% A 118.3 1.052
85% A 125.0 1.055
90% A 132.2 1.0585
95% A 154.4 1.06175
95% A 154.4 1.06175
* Typical Properties, not to be construed as
specifications.
Margin of error in Specific Gravity: ±0.001
Note: - For an extended margin of protection, select
a temperature in this table that is at least 5°C lower
than expected lowest ambient temperature. Kindly
contact your nearest CSL representative for further
assistance.

9. 9
593 Series
SPECIFIC HEAT AT DIFFERENT
TEMPERATURE AND
CONCENTRATION (kJ/kg.K)
TEMPERATURE
(°C)
PROPYLENE GLYCOL CONCENTRATION (% BY VOL.)
20 30 40 50 60
-35 - - - - 3.096
-30 - - - - 3.118
-25 - - - 3.358 3.140
-20 - - - 3.378 3.162
-15 - - 3.586 3.397 3.184
-10 - 3.765 3.603 3.416 3.206
-5 3.918 3.779 3.619 3.435 3.228
0 3.929 3.793 3.636 3.455 3.250
5 3.940 3.807 3.652 3.474 3.272
10 3.951 3.820 3.669 3.493 3.295
15 3.962 3.834 3.685 3.513 3.317
20 3.973 3.848 3.702 3.532 3.339
25 3.983 3.862 3.718 3.551 3.361
30 3.994 3.875 3.735 3.570 3.383
35 4.005 3.889 3.751 3.590 3.405
40 4.016 3.903 3.768 3.609 3.427
45 4.027 3.917 3.784 3.628 3.449
50 4.038 3.930 3.801 3.648 3.471
55 4.049 3.944 3.817 3.667 3.493
60 4.060 3.958 3.834 3.686 3.515
65 4.071 3.972 3.850 3.706 3.537
70 4.082 3.985 3.867 3.725 3.559
75 4.093 3.999 3.883 3.744 3.581
80 4.104 4.013 3.900 3.763 3.603
85 4.115 4.027 3.916 3.783 3.625
90 4.126 4.040 3.933 3.802 3.647
95 4.136 4.054 3.949 3.821 3.670
100 4.147 4.068 3.966 3.841 3.692
105 4.158 4.082 3.982 3.860 3.714
110 4.169 4.095 3.999 3.879 3.736
115 4.180 4.109 4.015 3.898 3.758
120 4.191 4.123 4.032 3.918 3.780

10. 10 593 Series
THERMAL CONDUCTIVITY
OF AQUEOUS SOLUTION OF
PROPYLENE GLYCOL (W/mK)
TEMPERATURE
(°C)
PROPYLENE GLYCOL CONCENTRATION (% BY VOL.)
20 30 40 50 60
-35 - - - - 0.269
-30 - - - 0.302 0.272
-25 - - - 0.306 0.275
-20 - - 0.346 0.311 0.278
-15 - - 0.351 0.315 0.282
-10 - 0.397 0.356 0.319 0.285
-5 0.449 0.403 0.361 0.323 0.288
0 0.456 0.409 0.366 0.327 0.291
5 0.463 0.415 0.371 0.331 0.294
10 0.470 0.421 0.376 0.334 0.297
15 0.477 0.426 0.380 0.338 0.299
20 0.483 0.431 0.384 0.341 0.302
25 0.489 0.436 0.388 0.344 0.304
30 0.494 0.441 0.392 0.347 0.307
35 0.500 0.445 0.396 0.350 0.309
40 0.505 0.450 0.399 0.353 0.311
45 0.509 0.453 0.402 0.355 0.313
50 0.514 0.457 0.405 0.358 0.314
55 0.518 0.460 0.408 0.360 0.316
60 0.521 0.463 0.410 0.362 0.317
65 0.525 0.466 0.413 0.363 0.319
70 0.528 0.469 0.415 0.365 0.320
75 0.531 0.471 0.416 0.366 0.321
80 0.533 0.473 0.418 0.367 0.321
85 0.535 0.474 0.419 0.368 0.322
90 0.537 0.476 0.420 0.369 0.323
95 0.538 0.477 0.421 0.370 0.323
100 0.540 0.478 0.422 0.370 0.323
105 0.541 0.479 0.423 0.371 0.323
110 0.542 0.480 0.423 0.371 0.323
115 0.542 0.480 0.423 0.371 0.323
120 0.543 0.480 0.423 0.371 0.323
125 0.495 0.444 0.398 0.358 0.323

11. 11
593 Series
FREEZE
PROTECTION
VOLUME
TONO FROST 593 FFG is a unique formulation
that helps you save up to 10 – 12% on
electricity consumption as compared to normal
Propylene Glycol.
The freeze protection is based on tests
performed on metallic components commonly
used in industrial and commercial systems
such as steel, copper, brass and cast iron.
Slightly higher percentage of the product may
be required in systems containing plastic or
ceramic components.
HOW DOES
CORROSION
HAPPEN
Propylene Glycol oxidizes when exposed to air
and heat. When this occurs, five organic acids
viz., Glycolic, Glyoxalic, Formic, Carbonic and
Oxalic Acid are formed.
If not properly inhibited, this fluid gets very
corrosive. These organic acids then chemically
attack and corrodes the system metal, causing
pitting, pinhole and stress cracking corrosion.

12. 12 593 Series
EFFECTS OF
CORROSION
Apart from the capital loss
of metal corrosion, glycol
system has a much higher
effect of corrosion -
POWER LOSS DUE TO LOW HEAT TRANSFERABILITY
REDUCED COOLING EFFICIENCY
LEAKS OF PIPELINES, SEALS AND HEAT EXCHANGER
SHUT DOWNS FOR MAINTENANCE RESULTS IN LOSS
OF PRODUCTION
GLYCOL FOULING (TURNS REDDISH IN COLOR AND
LOSES PROPERTIES)
Fig: Usual Challenges faced with Uninhibited Propylene Glycol –
Power Loss Issue
POWER CONSUMPTION
Years
Low
High
Tono Frost 593
Dosion Corrosion
Inhibitor
Uninhibited
Propylene Glycol

13. 13
593 Series
Fig: Usual Challenges faced with Uninhibited Propylene Glycol - Corrosion Issue
Fig: Usual Challenges faced with Uninhibited Propylene Glycol - Glycol & System Life Issue
Fig: Usual Challenges faced with Uninhibited Propylene Glycol - Leakage Issue

14. 14 593 Series
ADVANTAGES
OF USING
TONO FROST 593 FFG
The inhibitor packages used in TONO FROST
593 are specially formulated to help prevent
corrosion found in your industrial cooling
and heating systems.
The advantages of using TONO FROST 593
over Uninhibited Propylene Glycol are:
• EXTENDS SYSTEM METAL LIFE
• DOES NOT FORM SLUDGE DEPOSIT
IN THE SYSTEM
• INCREASES LIFE OF GLYCOL BY
AVOIDING DEGRADATION
• SAVES POWER AND INCREASES
HEAT TRANSFER EFFICIENCY
• DOES NOT AFFECT FREEZE
PROTECTION PROPERTIES
• AVOIDS LEAKAGES CREATED FOR
TOO MUCH CORROSION

15. 15
593 Series
Materials
Standard as per
ASTM D1384
class II
Un-Inhibited
Propylene Glycol
TONO FROST
(Pre-Inhibited Food
Grade Propylene
Glycol)
Copper ± 0.15 - 1.2 - 1.2
Solder ± 0.30 - 24 - 2.3
Brass ± 0.15 - 2.5 - 0.6
Mild Steel ± 0.15 - 225 - 0.3
Cast Iron ± 0.15 - 92 - 0.75
Aluminium ± 0.30 - 68 - 2.4
CORROSION
TESTING
RESULTS

16. 16 593 Series
METAL CORROSION
PROPERTY
CORROSION IN GLASSWARE
Before Test After Test
MATERIAL
COMPATIBILITY
Solutions of Tono Frost 593 are compatible
with all metals, with the exception of zinc.
The heat transfer fluid can dissolve zinc when
hot and should, therefore, not be used in
galvanized pipelines.
Tono Frost 593 is compatible with most plastics
and rubbers, such that they can be considered
industry standards.
ALUMIUM
CAST IRON
STEEL
BRASS
SOLDER
COPPER
Source of Data: -
**Metal Corrosion property 33% (by vol.) at 88⁰C ± 2, 336±2 hours as per ASTM D1384
Note: Samples with a + showed a weight gain.
*Based on corrosion test ASTM D1384
Rubber Metal Plastic

17. 17
593 Series
DILUTION
WATER QUALITY
TONO FROST 593 to be diluted with DM or
distilled water. However, it can also be mixed
with portable water within the prescribed
limits. If water of good quality is not
available, it is recommended to use premix
of TONO FROST 593.
• TOTAL HARDNESS
100 PPM MAX.
• CHLORIDE CONTENT
20 PPM MAX.
• SULPHATE CONTENT
20PPM MAX.
The water/glycol solution used for dilution
should be within the following limits:
SYSTEM
OPERATION PROTOCOL
NEW SYSTEM OLD FOULED SYSTEM
Flush entire system thoroughly with normal
water to remove oil, grease or protective
coatings.
Flush entire system thoroughly with
normal water until clean, clear, neutral
pH water found in the outlet.
The system should be free of all foreign matters and debris.
Drain solution from system
Descaling of the system is recommended
to remove scales and corrosion deposits.
Passivate system thoroughly with 2% solution of PASSIRINSE with hot water (60-70°C)
for 24 hours (4 hours on 2 hours off)
Flush system with soft water before final dosing of TONO FROST 593
Use only DM (De-mineralized) water for dilution of glycol
Dip the return line inside the fluid

18. 18 593 Series
PRECAUTIONS • Use DM water for dilution of glycol
• Use of leak detection dye is mandated if suspected for leaks
• Presence of proper maintenance people and equipment during
cleaning will result in a smoother operation.
• Prior to addition of glycol into the system, calculate the total quantity
of glycol and DM water for entire system. Circulate for a minimum of 6
hours and specific gravity after, to ensure proper dilution.
• For corrosion prevention, use of pre-inhibited glycol is mandated.
DOSAGE & QUANTITY
CALCULATION
For top up requirement following formula may be used to calculate the right top up quantity*
ADDING
GLYCOL QG
=
V(D - P)
(100 - P)
where, D = Desired Glycol Percentage
P = Present Glycol Percentage
V = Circulation volume
*Avoid excessive glycol concentration because it increases initial cost and adversely affect physical
properties of the fluid.

19. 19
593 Series
PRECAUTION
& SAFETY
Propylene Glycol is non-toxic and can be handled
easily. However, proper human safety products such
as splash goggles, lab coat, gloves & boots should
be worn while handling and applying chemicals.
Splashes on skin should be washed off with water
immediately. In case of splashing in the eyes, flush
them with fresh water and obtain medical attention.
Should not be injected.
STORAGE
AND
HANDLING
PACKAGING
TONO-FROST 593 FFG should be stored in original containers
in cool dry place, away from heat, direct sunlight and alkalis.
Store in cool and dry place.
Kindly refer label and SDS for details.
215 kgs HDPE Barrels
Googles
Lab Coat Boots
Gloves

20. CHEMTEX SPECIALITY LIMITED
Haute Street Corporate Park,
86A, Topsia Road (S), Kolkata - 700046, WB, India
+91 89611 11111 | info@chemtexltd.com | www.chemtexltd.com
© 2021 CHEMTEX SPECIALITY LIMITED v 1.1
TONO
FROST®
593