Bis(O,O-didodecyl phosphorodithioato-S,S)-Zinc, also known as zinc dialkyldithiophosphate (ZDDP), is a widely used organophosphorus compound with the chemical formula [Zn(S2P(OC12H25)2)2]. It is primarily employed as an antioxidant and antiwear agent in various lubricating oils, such as engine oils, hydraulic fluids, and gear oils. ZDDP works by forming a protective layer on metal surfaces, reducing friction and wear, and neutralizing harmful oxidation products. Its effectiveness in enhancing the performance and longevity of lubricants makes it an essential component in the formulation of many industrial and automotive lubricants.

4563-56-8

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Basic information
1. Product Name: bis(O,O-didodecyl phosphorodithioato-S,S)-Zinc
2. Synonyms: bis(O,O-didodecyl phosphorodithioato-S,S)-Zinc;Zinc,bis(O,O-didodecyl phosphorodithioato-S,S)-
3. CAS NO:4563-56-8
4. Molecular Formula: C48H100O4P2S4Zn
5. Molecular Weight: 996.902722
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 4563-56-8.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: 1.029g/cm3 at 20℃
6. Vapor Pressure: 0.04Pa at 20℃
7. Refractive Index: N/A
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: bis(O,O-didodecyl phosphorodithioato-S,S)-Zinc(CAS DataBase Reference)
11. NIST Chemistry Reference: bis(O,O-didodecyl phosphorodithioato-S,S)-Zinc(4563-56-8)
12. EPA Substance Registry System: bis(O,O-didodecyl phosphorodithioato-S,S)-Zinc(4563-56-8)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 4563-56-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4563-56-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,6 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4563-56:
(6*4)+(5*5)+(4*6)+(3*3)+(2*5)+(1*6)=98
98 % 10 = 8
So 4563-56-8 is a valid CAS Registry Number.

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