SKU: 21805497819

S2 Heat Transfer Oil - 55 Gallon Drum

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Description

S2 Heat Transfer Oil - 55 Gallon DrumDescription Sinopec L QB300 Thermal Conduction Oil is formulated using a narrow cut, highly refined mineral oil, which has excellent inherent thermal and oxidation stability, together with selected detergent, dispersant and antioxidant additives. It is recommended for use as a heat transfer oil in closed, forced or unforced, circulation systems where the bulk oil temperature does not exceed 290C or 600F. Features & Benefits Sinopec L QB 300 Heat

Description

Sinopec L-QB300 Thermal Conduction Oil is formulated using a narrow-cut, highly refined mineral oil, which has excellent inherent thermal and oxidation stability, together with selected detergent, dispersant and antioxidant additives. It is recommended for use as a heat transfer oil in closed, forced or unforced, circulation systems where the bulk oil temperature does not exceed 290°C or 600°F. 

Features & Benefits

Sinopec L-QB 300 Heat Transfer Oil is suitable for use in:

  • Closed heat transmission systems with forced or unforced circulation operating at a maximum bulk temperature of 290°C.
  • Drying and heating process, such as those used in timber processing, textile finishing, food processing and the chemical industry.

Features & Benefits

  • The narrow-cut base oil has a high distillation point, which avoids pressure build up in the closed circulation system.
  • Excellent thermal and oxidation stability ensure the oil does not crack, break down or produce deposits at high temperatures, extends the life of the oil, protects the system and reduces maintenance costs.
  • The high flash point and low evaporation rate enable the oil to be used in closed systems up to 290°C.
  • Good fluidity at low temperatures ensures good oil circulation, even at low-temperature start-up.
  • The high specific heat and thermal conductivity of the oil enable rapid heat transfer, improved operating efficiency and lower operating costs.
  • Good rust and corrosion resistance protect the system and reduce maintenance costs.
  • Used paraffinic mineral oil can be recycled or disposed of more easily than naphthenic or synthetic fluids.

Specifications

Sinopec L-QB300 Thermal Conduction Oil Specifications

Kinematic viscosity, ASTM D 445

cSt @ 40°C

cSt @ 100°C


31.4

5.38

 Viscosity index, ASTM D 2270

105

Micro-Conradson Carbon Residue, %wt, ASTM D 4530

0.01

Copper corrosion, 3 hours @ 100°C, ASTM D 130

1b

Pour point, °C, ASTM D 97

-12
Flash point (COC), °C, ASTM D 92 226
Density @ 15°C, kg/l, ASTM D 4052 0.8685


Sinopec L-QB300 Thermal Conduction Oil meets or exceeds the performance requirements of the following industry specifications:

DIN

51522-1998

GB1

23971-2009

 

Cross Reference

  • Chevron Heat Transfer Oil
  • Mobiltherm
  • Shell Heat Transfer Oil S2

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SKU: 21805497819

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M
momof6
Lake Worth, US
★★★★★ 5
Taste is good, reliable manufacturer
Thorne is a reputable brand that has come out with a magnesium citrate and has been certified by a third-party. I sometimes wonder about supplements online, but having a third-party certify the product gives me more peace of mind. It comes in a double protected container for further peace of mind. This magnesium citrate comes in a powder form and mixes fairly easily with cold water. There is bicarbonate in the product, so it has a slight bubbly texture. This really tastes like citrus berry and is sweetened with monk fruit extract. I like that it has no artificial sweeteners in it. Magnesium has been known to support muscle heart bone and the urinary tract. It can also help with constipation. My husband is a nurse and he says that they regularly administer this in the hospital when a patient has trouble with constipation. The recommended dosage is one scoop to 6 to 8 ounces of water. There are about 60 doses in the container. If taken once a day, this will last for two months. This is a good alternative to other magnesium supplements. It is a form that is usually well absorbed by the body. Given the reputation of the manufacturer, the ease of use, the benefits, and the ease of absorption, I can recommend this product if you are looking to increase magnesium in your diet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
A
Amazon Customer
Cuba, US
★★★★★ 5
Certified quality magnesium citrate
If you like powdered supplements and planning to take magnesium citrate, then this one if for you. I take it towards the end of the day, and in addition to the many benefits of magnesium, it actually helps me relax and sleep better, although those are not the main benefits of citrate. I guess we all react differently to supplements. My favorite setup is when I take it in the evening and sip on it during a sauna session. In all cases, I target end of day. The taste is very good and it mixes easily with water. Also, Thorne is a brand I trust and it's certified by various bodies. It's worth the premium but it's better to catch a deal on amazon or add it to subscribe and save for a discount if you're planning to use it long term.
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Reviewed in the United States on June 3, 2026
T
Tiffani
Natrona Heights, US
★★★★★ 5
Best magnesium from the best supplement brand.
Thorne can do no wrong in my book. They just can’t. I take magnesium every night. Usually magnesium glycinate. However, I read that that can start to cause night sweats over overtime. So moving decent was kind of a trial to see if that stopped the issue. It did immediately. The bonus of the powder though is that I can have it in a little bit of cherry juice or a mocktail before I go to bed. The flavor is great, and I haven’t noticed any grittiness whatsoever. That’s sad, I drink a lot of protein drinks so it’s entirely possible. I’m used to grittiness. Since starting to take this, I’ve been sleeping just as well as I have with the magnesium glycinate. Perhaps even a little bit better because this is higher quality and I’m not getting the night sweats.
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Reviewed in the United States on May 24, 2026
S
Samhain
Battle Creek, US
★★★★★ 4
Simple Magnesium Powder That Is Easy Enough to Take
I just started taking this Magnesium Citrate powder, so it is too early to know if it will help with things like muscle support, heart health, bone health. Magnesium is an important mineral for the body and it plays a role in muscle function, nerve signaling, and overall balance, so I like the idea of adding it to my routine. The citrus berry flavor is not too horrible, which is a pleasant surprise because some magnesium powders can taste pretty rough. This one is easy enough to drink without feeling like you have to force it down. I also like that it is third party certified and comes with a full sixty servings. I will need more time to see if it makes a noticeable difference, but so far the experience has been simple and the taste is manageable.
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Reviewed in the United States on May 14, 2026
I
Inna Tysoe
Alexandria, US
★★★★★ 5
2 months supply, tasty berry bubblegum flavor, no morning cramps.
I've been taking Magnesium supplements for a long time, usually in capsule form. Starting from about age 45 I kept getting these awful morning calf cramps. Especially stretching, or on cold morning. The sudden agony was unexpected and concerning. Magnesium is the answer and this water-soluble magnesium from Thorne is no exception. For this particular problem, calf cramps. The results are noticable within a couple of days. If I stop taking magnesium for 3-5 days the cramps come back. Thorne powder has a berry flavor that is very similar to bubble gum. It dissolves easily without leaving any lumps. Is great to help you take your other supplements. I've been taking this for about 3 weeks with no cramps. Price is a little higher than capsules typically are. This works for me and the tub should last two-months if you follow the directions.
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Reviewed in the United States on May 25, 2026

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