China (Mainland)
Modified Starch
CAS No.: 65996-63-6
MF: (C6H10O5)n
Model Number: GB/T 8885-2008
Modified Starch used for filtration control in all types water base drilling fluids ranging from fresh to salt saturated waters.
MODIFIED STARCH
DESCRIPTION
This product is used for filtration control in all types of water base drilling fluids ranging from fresh to salt saturated waters. It also has shale inhibitive characteristics. It meets or exceeds API 13A specifications. Its thermal stability is up to 120°C. It is also can be bacterial fermentation.
QUALITY SPECIFICATION
Item
Specifications
Appearance
White powder
Suspension capability
600r/ min reading
Distilled water
≤18
40g/L saline water
≤18
Saturated saline water
≤20
Salty water
≤20
filtration
Distilled water
≤10 cm3
40g/L saline water
≤10 cm3
Saturated saline water
≤10 cm3
Salty water
≤10 cm3
Residue (≥2000μm)
Nil
USAGE & DOSAGE
This product could be added into drilling fluid directly or slowly added into water to form dense colloid solution in case of forming large blocks to influence solution rate.
Suggested dosage is 0.5-1 %.
PACKAGE
The product is usually kept in a compound or multi-wall bags, with each net weight 25 KG; Special packages are available based on customers' requirements.
STORAGE
The product should be kept in shady, dry and ventilated warehouse with environment temperature controlled within 122F and relative humidity 50%. It should be prevented from sun and rain, and positioned in some place away from heat and fire; the recommendation for bag piles is no more than 8 layers.
The expiration period is 12 months. It should not be utilized unless examined and qualified if out of expiration.
SAFETY
Avoid contacting with eyes, skin and clothing. Otherwise, wash with a flush of water. Refer to Material Safety Data Sheet (MSDS) for complete handling and hazard data.
Modified Starch
Appearance
White powder
Whiteness
93.8%min
Fineness
99.3%min
Moisture
12.5%max
Carboxyl
0.6
Viscosity
20 mpa.s
PH
7.6
Spot
0.5 pieces