PRODUCTIDENTIFICATION

CASNO.

8001-20-5

H.S.CODE

15154000

SYNONYMS

CHINA WOODOIL

GENERALDEscriptION & APPLICATIONS

Tung Oil ispressed from the nuts of Tung tree is known also as China wood oiland nut oil. Major producing countries are mainland China and SouthAmerica (Argentina and Paraguay), United States and Africa . Tungtree farms in the southern U. S. and Argentina now supply tung oil,formerly available only from China. The oil is still known in somecircles as "China wood oil".
Tung oil is an ideal "binder"or "vehicle", carrying the resins and driers deep into the pores ofthe wood so that sealer and finish coats practically become part ofthe wood - drying into an armor-like yet beautifulsurface.
Tung oil tree (Aleuritesfordii), a deciduous shade tree native to China. It belongs to theEuphorbia Family (Euphorbiaceae) along with the candlenut tree (Amolucanna), another species with seeds rich in unsaturated oils.For centuries tung oil has been used for paints and waterproofcoatings, and as a component of caulk and mortar. It is aningredient in ink and is commonly used for a lustrous finish onwood. Some woodworkers consider tung oil to be one of the bestnatural finishes for wood.
Tung oil is composedprimarily of eleostearic (elaeostearic) acid, with smaller amountsof oleic, linoleic and palmitic glycerides. Eleostearic acid is acrystalline unsaturated fatty acid that exists
in 2 stereoisomeric forms: Analpha acid occurring as the glycerol ester especially in tung oil,and a beta acid obtained from the alpha acid by irradiation (9, 11,13-octadecatrienoic acid).
Other unsaturated plant oils,such as castor oil and linseed oil, take longer to dry and leave anoily residue until they soak into the wood surface. Tung oil ''sability to dry quickly and polymerize into a tough, glossy,waterproof coating has made it especially valuable in paints,varnishes, linoleum, oilcloth and printinginks.
The largest application forthe oil is paint and varnish , and also wide utilized by soap ,inks, electrical insulators, furniture, shipbuilding,etc.

SALESSPECIFICATION

Appearance

transparent or slightlyor slightly turbid

Color

Not darker than afreshly prepared solution containing 0.4mg. K2Cr2O7 in 100ml. conc.H2S04 (sp. gr. 1.84)
or Gardner:9 max

DensityD20/4

0.9360-0.9395

RefractiveIndex

1.5170-1.5520

Iodine Value(WIJS)

163-173

SaponificationValue

190-195

Moisture &Impurities

0.3%max

F.F.A.

4%max

Worstall''s HeatTest

7.5 minutesmax

Beta Tung OilTest

no crystallineprecipitate

TRANSPORTATION

PACKING

In galvanized iron drumsof 190kgs net each. 80drums per 20'' container.