107-66-4 Usage
Description
Dibutyl phosphate is a pale amber, odorless liquid with a melting point of -13°C and a boiling point of 135-138°C. It has a density of 1.06 g cm-3 and is moderately soluble in water (18 g/L at 20°C). It is stable in neutral, acidic, or alkaline solutions and is classified as "not readily biodegradable" but inherently biodegradable, with an estimated half-life of 4.99 years for degradation in air by the reaction with photochemically produced OH radicals.
Uses
1. Used in the Plasticizer Industry:
Dibutyl phosphate is used as a plasticizer for polymer systems and hydraulic fluids, enhancing the flexibility and workability of these materials.
2. Used in the Paint Industry:
Dibutyl phosphate is used as a catalyst for cross-linking in the paint industry, improving the durability and performance of the paint.
3. Used in the Ore Separation Process:
Dibutyl phosphate is used as an antifoam agent in the ore separation process, helping to reduce the formation of foam and improve the efficiency of the separation process.
4. Used in the Textile Industry:
Dibutyl phosphate is used as an antistatic agent in the textile industry, reducing the buildup of static electricity on fabrics and improving their handling and comfort.
5. Used as a Precursor for Antistatics:
Dibutyl phosphate can be used as a precursor for the synthesis of antistatic agents, which are used in various applications to reduce static charge buildup.
6. Used as a Mould Release Agent in Polyurethane Applications:
Dibutyl phosphate is used as a mould release agent in the production of polyurethane products, facilitating the release of the finished product from the mould and improving the manufacturing process.
7. Used as a Non-Volatile Acidic Catalyst Soluble in Organic Media:
Dibutyl phosphate can be used as a non-volatile acidic catalyst that is soluble in organic media, enhancing the efficiency of various chemical reactions and processes.
Reactivity Profile
Dibutyl phosphate Is non-flammable, but combustible (flash point 188°C). Auto-ignition temperature is 420°C. Emits irritating or toxic fumes in a fire. Is a moderately strong acid obtained by the partial esterification of phosphoric acid. Reacts exothermically and vigorously with bases. Incompatible with strong oxidizing agents, alkali metals, heat, or plastic. Reacts with many metals liberating flammable/explosive hydrogen gas.
Health Hazard
Dibutyl phosphate is an irritant
of the eyes and mucous membranes.
Flammability and Explosibility
Nonflammable
Safety Profile
Moderately toxic by
ingestion. When heated to decomposition it
emits toxic fumes of POx. See also
PHOSPHATES.
Potential Exposure
This material is used as a catalyst in
organic synthesis.
Shipping
UN1760 Corrosive liquids, n.o.s., Hazard class: 8;
Labels: 8-Corrosive material, Technical Name Required.
UN3261 Corrosive solid, acidic, organic, n.o.s., Hazard
class: 8; Labels: 8-Corrosive material, Technical Name
Required.
Incompatibilities
Dibutyl phosphate is a medium strong
acid. Incompatible with oxidizers (chlorates, nitrates, per-
oxides, permanganates, perchlorates, chlorine, bromine,
fluorine, etc.); contact may cause fires or explosions. Keep
away from alkaline materials, strong bases, strong acids,
oxoacids, and epoxides. Attacks many metals forming flammable and explosive hydrogen gas. Attacks some plas-
tics, rubber, and coatings.
Check Digit Verification of cas no
The CAS Registry Mumber 107-66-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,0 and 7 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 107-66:
(5*1)+(4*0)+(3*7)+(2*6)+(1*6)=44
44 % 10 = 4
So 107-66-4 is a valid CAS Registry Number.
InChI:InChI=1/C8H19O4P/c1-3-5-7-11-13(9,10)12-8-6-4-2/h3-8H2,1-2H3,(H,9,10)/p-1
107-66-4Relevant articles and documents
-
Calderon,J.,Cruz,C.
, p. 1069 - 1070 (1971)
-
Chlorine free synthesis of organophosphorus compounds based on the functionalization of white phosphorus (P4)
Abdreimova, Rumiya R.,Akbayeva, Dina N.,Polimbetova, Gulshara S.,Caminade, Anne-Marie,Majoral, Jean-Pierre
, p. 239 - 254 (2000)
Oxidative alkoxylations of P4 in toluene-alcohol solutions are studied. These reactions need oxygen, a catalyst (PdCl2, RuOHCl3, RuCl3) and a co-oxidant (CuCl2, NaNO2, FeCl3, 1,4-benzoquinone, NaBrO3). Trialkylphosphates (RO)3P(O) and dialkylphosphites (RO)2P(O)H are the major products of the reaction. Kinetic experiments concerning the rate of absorption of O2 during these reactions are also reported.
Convenient preparation of long-chain dialkyl phosphates: Synthesis of dialkyl phosphates
Aitken, R. Alan,Collett, Chris J.,Mesher, Shaun T. E.
, p. 2515 - 2518 (2012)
Reaction of phosphorus oxychloride with a primary alcohol (1.8 equiv) and triethylamine (1.8 equiv) in toluene, followed by filtration and treatment with steam, gives dialkyl phosphates in good yield and essentially free from trialkyl phosphate contamination. Georg Thieme Verlag Stuttgart · New York.
-
Cesarano,Lepscky
, p. 276 (1960)
-
METHOD FOR PRODUCING PHOSPHOESTER COMPOUND
-
Paragraph 0023; 0026-0028, (2021/09/27)
PROBLEM TO BE SOLVED: To provide a method whereby, a phosphate compound selected from the group consisting of orthophosphoric acid, phosphonic acid, phosphinic acid, and anhydrides of them is used as raw material and, by one stage reaction, a corresponding phosphoester compound is produced. SOLUTION: To an aqueous solution of a phosphate compound, added is an organic silane or siloxane compound having an alkoxy group or an aryloxy group, and the mixture is subjected to a heating reaction, thereby producing a corresponding phosphoester compound without requiring a catalyst. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT
Novel photolabile protecting group for phosphate compounds
Zhang, Youlai,Tanimoto, Hiroki,Nishiyama, Yasuhiro,Morimoto, Tsumoru,Kakiuchi, Kiyomi
scheme or table, p. 367 - 370 (2012/03/11)
A novel photolabile protecting group, thiochromone S,S-dioxide, containing the diazomethyl group for protection of phosphate derivatives is described. Deprotection of the successfully protected phosphate derivatives proceeded smoothly under photoirradiation using an ultrahigh-pressure mercury lamp to recover the corresponding phosphates quantitatively, and the photoproduct derived from the thiochromone derivative showed high fluorescence intensity. Georg Thieme Verlag Stuttgart · New York.