Creosote oil

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EC No. 232-287-5
CAS No. 8001-58-9
HS Code: 2707991900

Files:

MSDS Coal Tar Creosote Oil for wood treatment1.8

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Hippocampus OU

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2018-09-29

English

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Creosote oil obtained by means of distillation of crude coal tar is called traditional creosote. The most frequent question we receive is: “Your creosote is petroleum, wood-tar or coal-tar made?” Answer: our creosote is of coal-tar origin :) i.e. we offer for sale creosote made by coal tar distillation. Only creosote obtained by crude coal tar distillation is known as traditional creosote oil.

Used for wood preservation and for vacuum pressure wood treatment in particular creosote is controversially valued. Thus, although creosoted wood has acknowledged harmful human health effect and environmental impact, nevertheless no other wood treatment chemical can substitute Creosote’s durable and strong quality effect. Hence, coal-tar creosote is mainly used in preservation of wood for industrial purposes: electricity poles, railway ties and sleepers, etc. The process of vacuum pressure impregnation of wood with coal-tar creosote is called creosoting.

Coal tar creosote is famous in its stringent odor; rather say a powerful specific smell featuring traditional coal-tar creosote. It is due to the coal-tar creosote specific chemical composition. Coal-tar creosote is a mixture of diverse chemicals that can be combined in four major classes of creosote compounds:

Coal-tar Creosote composition	%
Aromatic hydrocarbons Consist of: - Napthalenes (distilled between 205-255°C) - Anthracenes (distilled above 255°C)	75 - 90 % - - 15 - 50 % - 45 070 %
Tar acids (distilled below 2050C) Consist of: phenols, cresols and xylenols, carbolic acid	- 1- 5 %
Tar bases	1 - 2 %
Aromatic amines and Heterocycles	0,1 – 1,0 % (each)

Each country regulates composition and use of creosote on its own. And these regulations are mainly applied to the content of benzo-a-pyrene (BaP) and phenols. In Europe all chemicals imported, to EU, produced and/or used in EU must be registered with ECHA and obtain a REACH registration number. Moreover, in 2003 EEC with the aim to protecting human health and the environment in the European Member States decided restricting use of dangerous substances and Creosote in particular.
The restrictions on use of creosote and creosote treated wood imposed under the REACH regulations are described in detail in Annex XVII of the REACH Regulation https://echa.europa.eu/substances-restricted-under-reach (search for “creosote”).

You can buy coal-tar creosote of the following quality:

Specifications of Creosote Oil

CREOSOTE (COAL-TAR)
No	Characteristic/Property	Standard
No	Characteristic/Property	GOST2770-74, Russia	BS 144, type 2, UK
1.	Benzo[a] Pyrene Concentration, mg/kg	not rated	500 max
2.	Insoluble in Toluene, % (m/m)	0,3 max	0,4 max
3.	Liquidity Temperature (°C) at which the product is completely liquid after 2 hours	32⁰C (residue at 35°C is absent)	32⁰C
4.	Phenols water extractible, %	5,1	5 - 20
5.	Distillation, (m/m), % Recovery of dehydrated creosote %:	3 max (at 210°C)	5 max ( at 205°C)
		10 – 35 (at 275°C)	5 - 30 ( at 230°C)
		30 – 50 (at 315°C)	40 - 78 ( at 355°C)
		70 min (at 360°C)	73 - 90 (at 355°C)
6.	Water content (v/v), %, max	1,5	1,5
7.	Density (kg/m³) at ⁰C	1090 – 1130 at 20⁰C	1003 – 1108 at 32⁰C
8.	Flash point, °C	105°C min (Cleveland open cup)	61°C min Pensky-Martens closed tester)
9.	Viscosity	1,3 E° dynamic viscosity at 80° C	1003 – 1108 mm²/s kinematic viscosity at 40° C
10.	Colour	From dark brown to black	From dark brown to black
11.	Naphthalene content (% (m/m))	2,25	15 max