PRODUCT IDENTIFICATION

TOXICITY

SMILES

CLASSIFICATION

EXTRA NOTES

PHYSICAL AND CHEMICAL PROPERTIES

> 300 C

0.921

REFRACTIVE INDEX

EXTERNAL LINKS & GENERAL DESCRIPTION

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Material Safety Data Sheet

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PubChem Compound Summary - COBALT NAPHTHENATE

KEMI - Swedish Chemicals Agency
Naphthenates are sorts of carboxylic acids which contain saturated cyclic hydrocarbons such as cyclopentane and cyclohexane; acids of this kind are known as naphthenic acids. The acids are separated from the gas oil fraction in petroleum distilling. No such pure production occurs in Sweden, nor are the salts produced here. About 5,000 tonnes of naphthenates were produced in the USA in 1988. The most widely used naphthenates are certain metallic soaps. These soaps are soluble, not in water but in many organic substances. The metallic naphthenates are yellowish-brown and, depending on metallic content, viscous liquids, sticky compounds or soft, solid substances. The metallic content can vary between about 6% and about 40%.  Naphthenates are mostly used as an ingredient in paints, to accelerate the drying of the painted surface. When the binder in paint comes into contact with atmospheric oxygen, the intention is for the binder to cross-link and become a solid layer, i.e. to set. The metallic part of the siccative accelerates absorption of atmospheric oxygen, catalyses the formation of free radicals, and the binder reacts – dries – more rapidly. Most often a combination of two metallic naphthenates is used to achieve rapid drying of the surface and after-setting in depth. Calcium/lead naphthenate mixtures have been common, but since the 1970s lead has been increasingly superseded by zinc and zirconium. Lead, however, gives better after-setting at temperatures below 10ºC. Thus it is the metallic part which decides how the naphthenate functions. The naphthenate acid contributes by dissolving the substance in oils and other non-polar substances. Metallic soaps applied to oils have a gelling effect – the lubricant oil turns into lubricant grease. Naphthenates are also used in this way.

Local:
Naphthenic acid is a complex of carboxylic acids( various low-molecular-weight fatty acids, believed to have cyclopentane ring mainly.) obtained as a by-product of petroleum refining; with  a variable composition and ingredients; generally 180 - 350 mole wt. It is used in deicing, dust control, wood preservative and road stabilization. Naphthenic acid and metallic naphthenates have industrial applications in synthetic detergents, solvent additives for paint, varnish, oils and resins. They are used as lubricants, corrosion inhibitors and fuel additives. They are used as wood preservatives; catalysts; insecticides; wetting agents; lubricating oil additive.

Paint driers are substances put into paint to make dry quickly. They are metallic salts of low-molecular-weight (chiefly C8) fatty acids or naphthenic acids. Naphthenic acid is a complex of carboxylic acids( various low-molecular-weight fatty acids believed to have cyclopentane ring mainly). Hydrocarbon parts take oxygen in air and metals act as catalyst to speed up the oxidative coating. Cobalt is the most useful. It is a powerful oxidation catalyst and can keep whiteness. Auxiliary metals should be added to prevent surface wrinkling after drying. Primary metals which can replace for cobalt are zirconium, lead, cerium and iron and auxiliary metals are like calcium, manganese, barium, zinc, lithium.

APPEARANCE

3.8 - 4.2% or 9.8 - 10.2%

HAZARD OVERVIEW

Combustible Liquid, Carcinogen, Target Organ Effect, Skin and respiratory sensitizer. Target Organs: Thyroid., Heart, Male reproductive system., Blood

GHS

Danger

PICTOGRAMS

HAZARD STATEMENTS

H226 Flammable liquid and vapour.
H303 May be harmful if swallowed.
H304 May be fatal if swallowed and enters airways.
H317 May cause an allergic skin reaction.
H320 Causes eye irritation.
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled.

PRECAUTIONARY STATEMENTS

P261 Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray.
P280 Wear protective gloves.
P301 + P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/ physician.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P331 Do NOT induce vomiting.
P342 + P311 If experiencing respiratory symptoms: Call a POISON CENTER or doctor/ physician.

T ToxicN Dangerous for the environment

RISK PHRASES

SAFETY PHRASES

PRICE INFORMATION