Brand Name: | Zorui |
Model Number: | 96949-22-3 |
MOQ: | 1 Ton |
Payment Terms: | L/C, D/A, D/P, T/T |
Welan Gum For Cement Mortar Concrete Oil Drilling Petroleum Industry CAS 96949-22-3
Description:
Welan Gum is an anionic polysaccharide with excellent thermal stability and retention of viscosity at elevated temperatures. Welan Gum exhibits superior temperature stability over 200° F in fresh water and low pH fluids. Welan Gum is a tan colored dry powder with a density of 26.25 lbs/ft³. Welan Gum is used in various industries where high molecular weight biopolymers are useful.
Application:
WELAN GUM biopolyer is a high efficiency, pseudoplastic viscosifier and suspension agent used in water based drilling, workover and completion fluids. Welan gum is also used in hydraulic fracturing fluids and cementing grouts, foundary coating, pigment suspensions, cement or concrete viscosifier, tire sealant and paint thickeners.
Physical requirements:
Appearance: | white to cream color powder | |
Odor | mild | |
pH: | 7.0-9.0 | |
Bulk density: | 26.25 lbs./ ft3 (500-700kg/m3) | |
Specific Gravity: | 1.45 | |
Particle Size: | 90% pass 80 mesh | |
Viscosity |
0.66% in Dl water by Fann 35 at 70ºF |
0.66% in Dl water by Fann 35 with 1.0 spring at 185ºF |
300rpm | 39-49 | 37-47 |
200rpm | 33-43 | 32-42 |
100rpm | 29-37 | 28-35 |
6rpm | > 17 | > 17 |
3rpm | > 16 | > 16 |
Welan gum is a biological polysaccharide obtained by biochemical fermentation by strains extracted from the culture solution of Alkalibacterium with starch and other carbohydrates as the main raw materials. It is a tetrasaccharide repeating unit composed of D-glucose, D-glucuronic acid, L-rhamnose, and L-mannose. From the molecular formula, because its hydrogen bond exists between the two glycosidic rings on the polymer chain, the viscosity of the solution system increases significantly, making it better adhere to the surface of the substance, so that the entire solution system produces a It has a wide range of bridge effect, thereby increasing the yield value, maintaining good cohesion of the solution system under standing or moderate shear force, making it have excellent thickening and rheological suspension stability.
Warm wheel glue has the following characteristics:
Higher viscosity at low concentrations
Higher viscosity at low speed
Excellent water holding capacity
Special stability under high salt conditions
high temperature resistance
Excellent rheological properties
Items | Specification |
Appearance | Off white powder |
Viscosity (1% H2O,, 25℃) mpa.s | 1500-3500 |
Loss on drying % | 6.0-16.0 |
Ash % | ≤13 |
PACKING & DELIVERY
Packaging | 1kg-15kg packing | 2 PE bag inside + 1 foil bag outside in carton | ||
25kg-50kg packing | 2 PE bag inside + 1 foil bag outside in drum | |||
Other packing | Customized packing | |||
Drum Size | D38cm*H60cm or customized, 25 kg/ drum | |||
Shipping | 1-50kg | International Express | Fast and convenient | Door to Door |
50-500kg | Air Transportation | Fast and cheap | To Air Port | |
Above 500kg | Sea Transportation | Cheap and convenient | To Port |
About discounts:
Different quantity has different discount. Please take the initiative to purchase to get the discount!!!
About the price:
Certain raw materials may have unstable prices due to environmental issues and factory shutdown issues. Therefore, we need to update prices in real time. Please ask us in advance!!!
We promise:
Free of customs clearance!!!We will ship by special line that shipping company do custom clearance and deliver to door.100% pass customs!
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Q4: How to confirm the Product Quality before placing orders
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The whole transaction is under Third party inspection.
Why choose us
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