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80A-51

Name: 80A-51
SKU: 0

Basic Information

CAS No.: 25085-02-3
Molecular Formula: (C3HgNO)n -(C3H3O2Na)m
Molecular Weight: 1 million - 2 million

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Product Details

80A-51 is a high molecular weight polymer thickener used in oil drilling fluids. It also has functions such as reducing filtration loss, flocculation, coating, and improving flow pattern. It is widely used in water-based drilling fluid systems.

Basic Information

Product Name	80A-51 Drilling Fluid Viscosifier
Chemical Composition	Linear high molecular copolymer of acrylamide and sodium acrylate
Functional Groups	Amide group & carboxylate group
Molecular Weight	1,000,000 ~ 2,000,000 Dalton
Main Functions	Viscosity increasing, shale encapsulation, fluid loss control, rheology regulation
Executive Standard	SY/T 5661-95
CAS Note	No exclusive CAS number (copolymer mixture)

Physical and Chemical Properties

Appearance	White or pale yellow free-flowing powder
Moisture Content	≤10.0%
pH Value (1% aqueous solution)	7 ~ 9
Solubility	Fast soluble in water, no agglomeration
60-mesh Sieve Residue	≤5.0%
Solid Content	≥90.0%
Heat Resistance	Stable below 120℃
Hygroscopicity	Slightly hygroscopic

Core Performance & Chemical Characteristics

Viscosity Boosting	Viscosity of 1% solution ≥30 mPa·s, improve cutting carrying capacity
Shear Thinning Property	Excellent shear thinning, reduce circulation resistance
Salt Resistance	Adaptable to saturated salt water drilling fluid
Calcium & Magnesium Tolerance	Good resistance to Ca²⁺ and Mg²⁺ ions
Shale Inhibition	Strong encapsulation effect, restrain shale hydration and collapse
Fluid Loss Control	Optimize mud cake quality and reduce filtration loss
Compatibility	Good compatibility with common drilling fluid additives
Recommended Dosage	0.2%~0.4% for fresh water mud; 0.3%~0.6% for salt water mud

Safety Information

Toxicity	Non-toxic and non-corrosive
Health Hazard	Dust causes slight irritation to respiratory tract and eyes
Exposure Routes	Inhalation, skin contact, eye contact
Protective Measures	Wear dust mask, goggles and rubber gloves
Storage Conditions	Seal and store in cool, dry and ventilated place, away from heat sources
Transportation	Ordinary industrial chemicals, avoid rain and direct sunlight
First Aid Treatment	Skin contact: Rinse with clean waterEye contact: Flush with plenty of water and seek medical aidInhalation: Move to fresh air immediately
Waste Disposal	Dispose in accordance with local environmental regulations

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80A-51

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