General Cleaning Chemicals

Oil Spill Dispersant 4G type III & II
Nova OSD 4G type 3&2

Description :

NOVA OIL SPILL DISPERSANT is water based, clear, homogenous & non-flammable liquid. It is completely biodegradable & soluble in fresh & seawater. Our product NOVA OSD 4G complies with the 2009 guidelines as a TYPE 3 & TYPE 2 dispersant by 'THE NATIONAL INSTITUTE OF OCEANOGRAPHY, GOA, & INDIAN COAST GUARD ' for use in Indian marine waters.

Specification :

Color : Light Amber liquid
Appearance : Clear homogenous free flowing liquid.
Cloud Point : .7°C
S R Gravity : 0.95 to 1.5 (typical 1.01)
Solubility : soluble in water.
Shelf Life : 5 Years.
Flash Point : Non-Flammable
Toxicity : Non-Toxic
Viscosity : 70 cSt at room temperature
PH : 6.0 to 8.5
Prohibited Items : Does not contain chlorinated hydrocarbons,phenols, cresols, Caustic alkali, or free mineral acids
Biodegradability : Biodegradable

Introduction :

Petroleum and their product are leading contaminations due to their global production Transport use, disposal and accident spillages. Since oil is a complex mixture of hydrocarbons the ecological impact of oil depend on its source, amount, type and preventing environmental conditions at the time of spill.

The oil tanker traffic in close proximity of the Indian Coast and offshore petroleum Exploration and petroleum platforms make our region a high Risk area. In the view of the above there is an urgent need to prevent, control, and combat oil spills. One of the most practical and effective response to tackle oil spill is by using chemical Dispersants.

Chemical Dispersant Application :

NOVA OIL SPILL DISPERSANT contains surface-active agents (surfactant) and a stabilizer. The purpose of NOVA-OSD 4G is quick removal of oil on surface by converting it in fine oil in water emulsion, which is rapidly distributed through the water column through agitation and mixing. Oil dispersed effectively into large volume of seawater is further diluted rapidly by turbulence and its concentration is reduced soon to back-ground levels. The object of NOVA OIL SPILL DISPERSANT is chemical dispersion of Oil spillage an expose of larger area of oil attack by marine bacteria present in sea Water than the exposed area of untreated slick. This is achieved when surface oil breaks Into droplets by action of NOVA-OSD 4G which on agitation disposes in to vertical water Column of sea. These droplets are rapidly biodegraded by marine bacteria. Resurfacing of droplets is influenced by droplet size, density of seawater, depth of water column And viscosity of oil being treated. The smaller the droplets size the less chance of oil Resurfacing and more rapid the dilution of droplet and its biodegradation by marine Bacteria and greater its anti cohesive properties.

Feeding & Dosage :


Aircraft provide the most rapid method of applying dispersants to an oil spill and a variety of aircraft can be Used for spraying. For aerial spraying, NOVA OSD 4G is used undiluted. A typical treatment rate is 10 to 50 ltrs per Acre or a DOR (dispersant to oil ratio) of 1:50 to 1:20. Normally oil thickness is 100 to 200 microns and it would Spread 1 to 2 ton of oil per hectare (1 hectare = 6.1 acres). However, this can vary depending on the type of oil, Degree of weathering, temperature and thickness of oil slick, Typical application atitudes of 30 to 50 feet have Been used, although higher altitudes may be effective under certain conditions. Actual effective altitudes will Depend on the application equipment, weather and aircraft

Careful selection of spray nozzles is critical to achieve desired dose levels, since droplet size must be Controlled. Many nozzles used for agricultural spraying are of low capacity and produce too fine a spray. A Quarter-inch open pipe may be all that is necessary if the airraft travels at 190kmph (104 knots) or more, Since the air shear at these speeds will be sufficient to break the dispersant into the proper sized droplets.


NOVA OSD 4G may also be applied by workboats equipped with spray booms mounted ahead of the bow wake Or as far forward as possible. The preferred and most effective method of application from a workboat is to Use a low-volume, low-pressure pump so the chemical can be applied undiluted. Spray systems, which apply Dispersant neat undiluted are preferable. However, if this is not practical, water dilutable systems which provide A 10% dispersant concentration should be used. NOVA OSD 4G is formulated to be diluted with seawater if Necessary during application, since the product is active at very low dosage. The mixture of dispersant and Seawater is then discharged through booms having several nozzles.

NOVA OSD 4G should be applied as droplets, not atomized, Natural wave or boat wake action usually provides Adequate mixing energy to disperse the oil. It can be seen from the above that NOVA OSD 4G serves as both TYPE 3 Sand TYPE 2 oil spill dispersant. As a guideline one (1)ltr of NOVA OSD 4G is capable of dispersing atleast 30 ltrs of heavy petroleum oil. Our product NOVA OSD 4G complies with the 2009 guidelines as a TYPE 3 & TYPE 2 dispersant by 'THE NATIONAL INSTITUTE OF OCEANOGRAPHY, GOA & INDIAN COAST GUARDS for use in Indian marine waters.