9002-81-7 Usage
Uses
Used in Acetal Resin Production:
Paraformaldehyde is used as a precursor in the production of acetal resins, also known as polyoxymethylene or polyacetal. These resins are strong, tough, and resistant to fatigue, creep, and organic chemicals, making them suitable for various applications.
Used in Engineering Thermoplastics Industry:
Paraformaldehyde-derived acetal resins are used as engineering thermoplastics due to their high molecular weights and high degrees of crystallinity. They are harder and have higher melting points than polyethylene, making them ideal for various industrial applications.
Used in Plumbing Fittings:
Paraformaldehyde-based acetal resins are used in the manufacturing of plumbing fittings due to their strength, toughness, and resistance to organic chemicals.
Used in Pump and Valve Components:
These resins are used in pump and valve components because of their excellent mechanical properties and resistance to organic chemicals.
Used in Bearings and Gears:
Paraformaldehyde-derived acetal resins are used in bearings and gears due to their low coefficients of friction and good wear resistance.
Used in Computer Hardware:
These resins are used in computer hardware manufacturing because of their electrical properties and resistance to fatigue and creep.
Used in Automobile Body Parts:
Paraformaldehyde-based acetal resins are used in the production of automobile body parts, taking advantage of their strength, toughness, and resistance to various environmental factors.
Used in Appliance Housings:
These resins are used in appliance housings for their durability, resistance to organic chemicals, and ease of processing.
Used in Reinforcement of Fibers:
Paraformaldehyde-derived acetal resins can be combined with fibers of glass or polytetrafluoroethylene to improve their properties for specific applications.
Check Digit Verification of cas no
The CAS Registry Mumber 9002-81-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 9002-81:
(6*9)+(5*0)+(4*0)+(3*2)+(2*8)+(1*1)=77
77 % 10 = 7
So 9002-81-7 is a valid CAS Registry Number.