Hydrotreated heavy paraffinic petroleum distillates
[CAS# 64742-54-7]

Identification

• Classification: Catalysts and additives >> Petrochemical
• Name: Hydrotreated heavy paraffinic petroleum distillates
• Synonyms: Hydrotreated heavy paraffinic distillates (petroleum); Emulsifiable oil; Horticultural spray oil; Superior oil
• CAS Registry Number: 64742-54-7
• EC Number: 265-157-1

Safety Data

• Hazard Symbols: GHS08 Danger
• Risk Statements: H304-H350
• Safety Statements: P203-P280-P301+P316-P318-P331-P405-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Carcinogenicity	Carc.	1B	H350
Aspiration hazard	Asp. Tox.	1	H304
Specific target organ toxicity - repeated exposure	STOT RE	1	H372
Reproductive toxicity	Repr.	2	H361
Chronic hazardous to the aquatic environment	Aquatic Chronic	4	H413
Eye irritation	Eye Irrit.	2	H319
Carcinogenicity	Carc.	1A	H350
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H332
Specific target organ toxicity - single exposure	STOT SE	3	H336
Germ cell mutagenicity	Muta.	2	H341
Specific target organ toxicity - repeated exposure	STOT RE	2	H372
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Skin irritation	Skin Irrit.	2	H315
Reproductive toxicity	Repr.	1B	H361

Discovery and Applications

Hydrotreated heavy paraffinic petroleum distillates, a category of refined petroleum products, have become critical components in various industrial and automotive applications. The development of this substance stems from the need to enhance the performance and stability of base oils, used across numerous sectors. Derived from crude oil, these distillates are hydrotreated, a process that removes impurities like sulfur, nitrogen, and aromatics by treating the oil with hydrogen at high temperatures and pressures. This chemical refinement improves the distillates’ oxidative stability, lubricity, and overall purity, making them more efficient and environmentally acceptable in end-use applications.

The hydrotreating process is a key advancement in petroleum refining, developed during the 20th century as environmental regulations grew stricter. By removing sulfur and other impurities, hydrotreating produces cleaner fuels and oils, thereby reducing emissions from engines and machinery that rely on these substances. For heavy paraffinic distillates, the hydrotreatment increases the proportion of saturated hydrocarbons, resulting in a stable, colorless, and odorless liquid with high viscosity and minimal reactivity under normal conditions.

Hydrotreated heavy paraffinic petroleum distillates are widely applied as base oils in lubricants for engines, transmissions, and hydraulic systems. Their high viscosity index ensures that these lubricants maintain performance across varying temperatures, reducing wear on mechanical parts. In the automotive and transportation industries, these distillates are vital in formulating motor oils that help engines operate efficiently under high-stress conditions. Beyond their use in lubricants, they are also found in metalworking fluids, greases, and transformer oils, where their stability and high flash points contribute to operational safety and reliability.

Another significant application is in the manufacturing of white oils and process oils, used in food-grade lubricants, cosmetics, and pharmaceuticals. The purification achieved through hydrotreatment allows these distillates to meet the rigorous safety and quality standards required for products that come into contact with food or skin. In the agricultural sector, hydrotreated paraffinic distillates are also used as spray oils for pest control, providing a less harmful alternative to harsher chemical pesticides.

Despite the benefits, there are environmental and health considerations associated with hydrotreated heavy paraffinic petroleum distillates. While the hydrotreatment process reduces the presence of harmful components, prolonged exposure to refined petroleum products may pose health risks, such as skin irritation and respiratory issues in some individuals. Additionally, there are environmental impacts associated with the production and disposal of petroleum-based products, highlighting the need for responsible handling and sustainable alternatives where possible.

The discovery and refinement of hydrotreated heavy paraffinic petroleum distillates have led to safer, higher-performing lubricants and other industrial oils, supporting advancements in numerous fields. As research continues, further improvements in refining technologies aim to enhance their safety and reduce environmental impacts, ensuring the continued relevance of these versatile distillates.

References

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