Tris(1-ethylpropyl) phosphite, also known as Tripropyl Phosphite or TPP, is a colorless liquid organic compound with the chemical formula C9H21O3P. It is a phosphorus-based stabilizer commonly used in the production of polyvinyl chloride (PVC) and other polymers to prevent degradation caused by heat, light, and oxidation. TPP functions by chelating metal ions, which are catalysts for the degradation of PVC, thus extending the material's lifespan and maintaining its physical properties. Additionally, it is used as a flame retardant, plasticizer, and antioxidant in various industrial applications.

19322-55-5

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Basic information
1. Product Name: Tris(1-ethylpropyl) phosphite
2. Synonyms:
3. CAS NO:19322-55-5
4. Molecular Formula:
5. Molecular Weight: 292.399
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: Tris(1-ethylpropyl) phosphite(CAS DataBase Reference)
10. NIST Chemistry Reference: Tris(1-ethylpropyl) phosphite(19322-55-5)
11. EPA Substance Registry System: Tris(1-ethylpropyl) phosphite(19322-55-5)
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: 19322-55-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 19322-55-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,3,2 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19322-55:
(7*1)+(6*9)+(5*3)+(4*2)+(3*2)+(2*5)+(1*5)=105
105 % 10 = 5
So 19322-55-5 is a valid CAS Registry Number.

19322-55-5Upstream product

19322-55-5Downstream Products

74465-43-3 {[Bis-(1-ethyl-propoxy)-phosphoryloxy]-phenyl-methyl}-phosphonic acid bis-(1-ethyl-propyl) ester

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