tributyl phosphate usage in concrete

Tributyl phosphate - Wikipedia

Tributyl phosphate is manufactured by reaction of phosphoryl chloride with n-butanol. POCl 3 + 3 C 4 H 9 OH → PO(OC 4 H 9) 3 + 3 HCl. Production is estimated at 3,000–5,000 tonnes worldwide. Use. TBP is a solvent and plasticizer for cellulose esters such as nitrocellulose and cellulose acetate.

Donald R. Lane Inventions, Patents and Patent Applications ...

Abstract: The present invention is directed to a defoaming agent for use with polycarboxylate based admixtures for concrete. The defoaming agent is comprised of tributyl phosphate, an alkylaryl sulfonic acid metallic salt and a modified alkylpolyalcoxy ester.

Air-Detraining Admixtures| Concrete Construction Magazine

Some aggregates have been known to release air into the mix. The most widely used air-detrainer is tributyl phosphate. Dibutyl phosphate, water-insoluble alcohols, water-insoluble esters of carbonic and boric acids as well as silicones may also do the job. Obviously they must be used judiciously for the concrete to end up with the right amount ...

Chemical Hazard Information Profile: Draft Report: Tri ...

----- CHEMICAL HAZARD INFORMATION PROFILE* DRAFT REPORT TriUlkyl/alkoxy) Phosphates September 23, 1985 DISCLAIMER This document is a preliminary draft and has not been formally peer and administratively reviewed within the Office of Toxic Substances,- Office of Pesticides and Toxic Substances, U.S. Environmental Protection Agency (DSEPA).

SAFETY DATA SHEET - Fisher Scientific

SAFETY DATA SHEET Creation Date 22-Sep-2009 Revision Date 18-Jan-2018 Revision Number 4 1. Identification Product Name Tributyl phosphate No. : B404-4; B404-500 CAS-No 126-73-8 Synonyms TBP Recommended Use Laboratory chemicals. Uses advised against Not for food, drug, pesticide or biocidal product use Details of the supplier of the safety data sheet

Defoamer for concrete admixtures - Tomahawk, Inc.

Mar 04, 2004· 1. A defoaming agent for use with concrete admixtures comprising tributyl phosphate, an alkylaryl sulfonic acid metallic salt and a modified alkylpolyalcoxyester. 2. The defoaming agent as defined in claim 1 wherein said tributyl phosphate amounts to about 30 to 70% by weight of said defoaming agent. 3.

Tributyl Phosphate Archives - Chemceed

Dec 12, 2017· Tributyl Phosphate is a regular stock item for ChemCeed. Please inquire for details. View TBP Sales Specifications. Tags: Ester, phthalates, Plasticizer, TBP, Tributyl Phosphate. Phosphates as Defoamers. Posted on May 25, 2017 - Product News. In concrete, producing an effective concrete-air content is a vital aspect.

Plasticizer - Wikipedia

The present invention is directed to a defoaming agent for use with polycarboxylate based admixtures for concrete. The defoaming agent is comprised of tributyl phosphate, an alkylaryl sulfonic acid metallic salt and a modified alkylpolyalcoxyester. Tributyl phosphate is a phosphate ester based defoamer and the modified alkylpolyalcoxyester is an air detraining agent.

99%tributyl Phosphate(tbp) - Buy Rock Phosphate,Natural ...

99%tributyl Phosphate(tbp), Find Complete Details about 99%tributyl Phosphate(tbp),Rock Phosphate,Natural Phosphate,Trisodium Phosphate from High Purity Reagents Supplier or Manufacturer-Luoyang Mine Friend Trading Co., Ltd.

TRIBUTYL PHOSPHATE HAZARD SUMMARY Tributyl …

Tributyl Phosphate is a colorless to pale yellow, odorless liquid. It is used as a solvent for nitrocellulose, cellulose acetate, plasticizers and antifoam agents. REASON FOR CITATION * Tributyl Phosphate is on the Hazardous Substance List because it is regulated by OSHA and cited by ACGIH,

Tributyl phosphate - Wikipedia

Tributyl phosphate, known commonly as TBP, is an organophosphorus compound with the chemical formula (CH 3 CH 2 CH 2 CH 2 O) 3 PO. This colourless, odorless liquid finds some applications as an extractant and a plasticizer. It is an ester of phosphoric acid with n-butanol.

Air entrainment and concrete - nrcs.usda.gov

t r ained concrete act thus as a safety va l v e by giving the water a re s e r vo i r into which to flow. When thawing o c c u r s, compressed air in the vo i d s f o r ces the water back into the capil-l a ri e s, there b y freeing the voids for use again during the next fre e ze. Test sections of pavement in …

TRIBUTYL PHOSPHATE | CAMEO Chemicals | NOAA

The Hazard fields include special hazard alerts, air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents.The information in CAMEO Chemicals comes from a variety of data sources.

ACI 212.3R-10 Report on Chemical Admixtures for Concrete

Report on Chemical Admixtures for Concrete First Printing November 2010 ISBN 978-0-87031-402-5 American Concrete Institute® Advancing concrete knowledge

Tributyl Phosphate at Best Price in India - dir.indiamart.com

Find here online price details of companies selling Tributyl Phosphate. Get info of suppliers, manufacturers, exporters, traders of Tributyl Phosphate for buying in India.

Admixtures for Concrete - University of Memphis

Admixtures for Concrete Fig. 6-1. Liquid admixtures, from left to right: antiwashout admixture, ... Admixtures being considered for use in concrete should meet applicable specifications as presented in ... Air detrainers Decrease air content Tributyl phosphate, dibutyl phthalate, octyl alcohol, water-

Report on Chemical Admixtures for Concrete - Penetron

Report on Chemical Admixtures for Concrete First Printing November 2010 ISBN 978-0-87031-402-5 American Concrete Institute® Advancing concrete knowledge

Tributyl phosphate ≥99% | Sigma-Aldrich

Tributyl phosphate (TBP) was used as defoamers and/or plasticizers, in fuel reprocessing and extraction. General description The microbial degradation of tributyl phosphate was carried out using Klebsiella pneumoniae S3 isolated from the soil.

Alkyl Phosphates - Kurt Obermeier & Co. KG

Brief description The alkyl phosphates family consists of a group of different phosphoric esters. They are used as highly polar solvents for different extraction processes, serve as defoamers for paints or concrete additives for example, are used as flame retardants or perform tasks in a variety of chemical synthesis processes.

Tributyl phosphite | C12H27O3P - PubChem

Use of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally or in part, for non-commercial purposes provided that ECHA is ...

Triisobutyl Phosphate - LANXESS

Triisobutyl phosphate is a very strong solvent used for liquefying concrete, textile auxiliaries, paper coating compounds, etc. Tri iso butyl phosphate (TiBP) is a very strong, polar solvent. It is mainly used as an antifoaming agent in various aqueous systems where it has the ability to both destroy foam and act as a foam inhibitor.

tributyl phosphate usage in concrete

tributyl phosphate usage in concrete - Balaji Electronics. TRIBUTYL PHOSPHATE: METHOD 5034, Issue 1, dated 15 August 1994 - Page 3 of 4 6. Pipet 10.0 mL of diethyl ether into each jar.

Tributyl Phosphate TBP CAS NO:126-73-8 Used As Extracting ...

Tributyl Phosphate TBP CAS NO:126-73-8 Used As Extracting Agent for Rare Metals. Tributyl Phosphate (TBP),Colorless or yellowish transparent liquid.It is used as extracting agent for rare metals, phosphoric acid defoaming agents for paints and chemical production processes, solvents for oily inks and paints; also as concrete additives and chemical agents.

Tributyl Phosphate manufacturers ... - Made-in-China.com

Buyers can post inquiries without registration and check out all the latest buying guide & Chemical market reports you need in our industry resource center. The above is the search results for Chinese Tributyl Phosphate, click for more recommended manufacturers & suppliers listings such as tbp, tri butyl phosphate tbp, 126-73-8.

Plasticizers for plastics | Triphenyl phosphate | Safer ...

Plasticizers for concrete soften the mix before it hardens, increasing its workability, and are usually not intended to affect the properties of the final product after it hardens. Plasticizers for plastics Plasticizers for plastics are additive, most commonly phthalates, that …

Phosphates as Defoamers - Chemceed

May 25, 2017· Defoamers are needed in the concrete when the thickening agents cause air to be trapped inside creating the foam. Common deformers used for this situation are Tributyl Phosphate (TBP). The thickening agent and defoamer (TBP) have a direct relationship in terms of usage (i.e. more thickening agent used the more defoamer that will be needed as well).

Tributyl phosphate | (C4H9)3PO4 - PubChem

USE: Tributyl phosphate is mainly used as a flame-retardant component of aircraft hydraulic fluid. It is used as a solvent for extracting rare earth elements, such as uranium and plutonium. Tributyl phosphate is also used in the making of plastics and in cement casings for oil wells.

US20040224869A1 - Defoamer for concrete admixtures ...

The present invention is directed to a defoaming agent for use with polycarboxylate based admixtures for concrete. The defoaming agent is comprised of tributyl phosphate, an alkylaryl sulfonic acid metallic salt and a modified alkylpolyalcoxy ester. Tributyl phosphate is a phosphate ester based defoamer and the modified alkylpolyalcoxy ester is an air detraining agent.

15 Types of Admixtures Used in Concrete - theconstructor.org

Some of the mostly used air-detraining admixtures are tributyl phosphate, silicones, water insoluble alcohols etc. 9. Alkali Aggregate Expansion Preventing Admixtures. Alkali aggregate expansion in concrete is happened by the reaction of alkali of cement with the silica present in the aggregates.

Tributyl phosphate - cdc.gov

Basis for revised IDLH: The revised IDLH for tributyl phosphate is 30 ppm based on acute inhalation toxicity data in animals [IPCS 1991]. This may be a conservative value due to the lack of relevant acute toxicity data in humans exposed to concentrations above 1.4 ppm. REFERENCES: 1. ACGIH [1991].

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