INTRODUCTION

Triphenyl phosphite (TPP) is an organophos-phorous compound and is a colorless, viscous liquid with high boiling point. It possesses a characteristic, delicate fragrance. Its uses can be found largely in polymers. Besides, it participates as a reactant in organic syntheses.

Manufacture

The triphenyl ester of phosphorous acid is produced by reaction of phenol with phosphorous trichloride, hydrochloric acid being the by-product.

SynonymsTriphenoxyphosphine
Phosphorous acid triphenyl ester
CAS no.101-02-0
EINECS no.202-908-4
Molecular formula(C6H5O)3P
Molecular weight310.29
Structure

Applications

in Polymers
As an antioxidant and a stabilizer in PVC, PP, PS, epoxy, and ABS resins. TPP imparts excellent color stability and heat stability
Improves color and clarity of alkyd resins
Used in process of emulsion polymerization
in Organic Syntheses
Consumed in some reactions that convert alcohol to acid chloride
As peptide coupling agent
In manufacture of pesticides and optical brighteners
RM for production of trimethyl phosphine
RM for synthesis of other organic phosphites such as diphenyl isodecyl phosphite and diphenyl iso-octyl phosphite
Other Applications
As chelating agent
As additive in lubricants and adhesives
As flame retardant

SPECIFICATIONS

TestUnitSpecifications
AppearanceClear Liquid
Acid ValueMg KOH/gMax 0.1
Specific Gravity @ 25°C1.175-1.189
Refractive Index @ 25°C1.5800 -1.5950
ColorAPHAMax 50
Free Phenol by GC%Max 1.0
Triphenyl phosphite by GC%Min 99.0
Phosphorus%9.7-10.1

STORAGE
The product is stored at ambient temperature.

PACKING
225 kg UN-approved HDPE drum.

REACH Status
TPP offered by ExSyn is registered under EU REACH regulations.

ExSyn offers TPP on commercial scales and welcomes enquiries. No matter the quantity you need, our exceptional quality and service will make ExSyn your supplier of choice! If you need any additional information or SDS, please get in touch with us.

More Products
In Focus : Sodium Starch Glycolate USP/EP
Products in focus · 10/04/2024

Sodium Starch Glycolate (SSG) is a very fine free flowing powder that is white or off white in color and has almost no odor. Its property of insolubility is remarkable, with complete insolubility in most organic solvents, and even in water. It is a sodium salt of carboxyl ether of starch and is appreciated for its stability and binding properties.

READ MORE
In Focus: ([Ethyl(3-methylphenyl) amino]methyl)benzenesulfonic acid
Products in focus · 02/04/2024

3-([Ethyl(3-methylphenyl)amino]methyl) benzenesulfonic acid is an organic sulfonic acid, a white crystalline solid, which is widely used as a catalyst, acidifying agent, and a reagent in organic synthesis.

READ MORE
In Focus: Sodium Trifluoroacetate
Products in focus · 26/03/2024

Sodium trifluoroacetate is a colorless organic solid belonging to category of fluoro compounds. It acts as a versatile trifluoromethylation agent in chemicals synthesis and is used to produce an array of chemical intermediates.

READ MORE
In Focus : Iodopropynyl butylcarbamate
Products in focus · 19/03/2024

Iodopropynyl butylcarbamate, also known as IPBC, is an antimicrobial ingredient commonly used in cosmetics. It appears as a white, crystalline powder. It is not a paraben; it belongs to a different chemical class called carbamates. It is soluble in both water and oil-based systems. IPBC was invented in the 1970s and has a long history of effective use as an antifungal technology.

READ MORE
In Focus : Stevia Extract (RA-98%)
Products in focus · 12/03/2024

Stevia extract with Rebaudioside A (98%) is one of the sweet tasting steviol glycoside, extracted and purified from Stevia rebaudiana (Bertoni) – a small perennial shrub also known as “Honey leaf”. The leaves of S. rebaudiana contain more than 30 different steviol glycosides, among which stevioside and rebaudioside A are present in the highest levels. It is non-nutritive and tastes approximately 200-300 times sweeter than sucrose.

READ MORE
In Focus: Protoporphyrin IX Dimethyl Ester
Products in focus · 05/03/2024

Protoporphyrin IX dimethyl ester, abbreviated PPMX, is an organic moiety belonging to category porphyrins. On exposure to light, PPMX releases reactive oxygen that can be used to destroy targeted cancer cells and thus it find applications largely in medicines.

READ MORE
In Focus: Cetylpyridinium chloride monohydrate
Products in focus · 28/02/2024

Cetylpyridinium chloride is the chloride salt form of cetylpyridinium, a quaternary ammonium with broad-spectrum antimicrobial activity. Upon topical administration, cetylpyridinium chloride is positively charged and reacts with the negatively charged microbial cell surfaces, thereby destroying the integrity of the cell membrane.

READ MORE
In Focus:N2-isobutyryl-2′-OMe-guanosine
Products in focus · 20/02/2024

N2-Isobutyryl-2′-O-methyl-guanosine (IBG) is a modified nucleoside that has gained significant attention in recent years due to its potential therapeutic and industrial applications. IBG is a derivative of guanosine, a nucleoside that is a building block of RNA and DNA.

READ MORE
In Focus: Trimethylaluminium, 2M in Toluene
Products in focus · 13/02/2024

Trimethylaluminium belongs to class of organometallics. It is a highly reactive chemical and its solution in toluene is normally used to facilitate workability. Its general applications are in cross coupling and carboalumination reactions.

READ MORE