Product Name: #6 Heavy fuel oils (CAS NO.68553-00-4)
Appearance: Thick black liquid with the odor of tar
Water Solubility: Insoluble in water
Product Categories: UVCBs-organic; Chromatography; Environmental Standards; Gasoline, Diesel, PetroleumEPA; Individual Fuel Standards; UST/GRO/DRO

Reported in EPA TSCA Inventory.

Mildly toxic by ingestion and skin contact. A mild eye and skin irritant. Combustible when exposed to HEAT or flame. When HEATed to decomposition it emits toxic fumes.
Safety Information of #6 Heavy fuel oils (CAS NO.68553-00-4):
Hazard Codes: T,F
Risk Statements: 45-67-65-62-51/53-48/20/22-38-22-11
11:  Highly Flammable
20:  Harmful by inhalation  
22:  Harmful if swallowed
38:  Irritating to the skin
45:  May cause cancer
48:  Danger of serious damage to health by prolonged exposure
51:  Toxic to aquatic organisms  
53:  May cause long-term adverse effects in the aquatic environment
62:  Possible risk of impaired fertility 
65:  Harmful: May cause lung damage if swallowed 
67:  Vapors may cause drowsiness and dizziness 
Safety Statements: 53-45-62-61-36/37-33-16-9
9:  Keep container in a well-ventilated place
16:  Keep away from sources of ignition - No smoking
33:  Take precautionary measures against static discharges
36:  Wear suitable protective clothing  
37:  Wear suitable gloves 
45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
53:  Avoid exposure - obtain special instruction before use
61:  Avoid release to the environment. Refer to special instructions safety data sheet 
62:  If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label 

 #6 Heavy fuel oils ,its CAS NO. is 68553-00-4,the synonyms is Bunker fuel ; EINECS 271-384-7 ; Fuel Oil No. 6 ; No. 6 fuel oil .