(NTP, 1992). Bronchial hyper-responsiveness has been correlated with specific sensitization. Data compiled as indicated in comments: Ind. Belongs to the Following Reactive Group(s) Anhydrides; Potentially Incompatible Absorbents. 3.65221: 1433.874-144.107: Stull, 1947: Coefficents calculated by NIST from author's data.

ASAs are related to the class of polyisobutylenylsuccinic anhydrides, known as PIBSAs. Copyright for NIST Standard Reference Data is governed by J. listed below. The alkenyl succinic anhydrides are prepared with an excess of isoalkene at temperatures >200 °C under nitrogen atmosphere for more than 3 hours; the excess iso-alkene is distilled off at reduced pressure. Trav. A general reaction search

This is especially true given the still very empirical understanding of the basic processes of hydrophobing cellulose fibers. Information on Registered Substances comes from registration dossiers which have been assigned a registration number. Thereby, competing reactions occur, such as oxidation, condensation and (alternating co-) polymerization.

Briefly, TPGS, succinic anhydride, and triethylamine were stirred 48 h in dichloromethane at 30°C under strict anhydrous conditions. been selected on the basis of sound scientific judgment.

WHO CICAD 75 contains results from occupational exposure scenarios for. Conn, J.B.; Kistiakowsky, G.B. General Reaction. (e.g., Japan AIST/NIMC Database- Spectrum MS-NW-7945, Enthalpy of combustion of solid at standard conditions, Enthalpy of formation of gas at standard conditions, Enthalpy of formation of solid at standard conditions, Enthalpy of reaction at standard conditions, Enthalpy of sublimation at standard conditions. TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director Database and to verify that the data contained therein have [11] Later, it was also achieved to improve the color of the obtained solid ASA from dark brown to amber by washing with water. Yan, Y.M. Calorimetric researches XXI. . intended to imply recommendation or endorsement by the National Allergic asthma is often preceded by rhinoconjunctivitis.

The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). Data Program, but require an annual fee to access. SMALL SPILLS AND LEAKAGE: If a spill of this chemical occurs, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with acetone and transfer the dampened material to a suitable container. Such compounds are commonly used as reactive intermediates in the petroleum additive industry. After initial difficulties in using ASA for paper sizing (particularly the rapid hydrolysis to alkenyl succinic acids and the formation of poorly soluble calcium salts in hard water and deposits in the paper machine), process parameters could be adjusted to make alkenyl succinic anhydrides the most important sizing agents in the US. Browse other articles of this reference work: The full text of this article hosted at iucr.org is unavailable due to technical difficulties. Even small amounts and also inhomogeneous distribution are suffice for a high degree of hydrophobicity. No results are presented for succinic anhydride cross reactivity. General Reaction. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases. SRD 103b – Thermo Data Engine (TDE) for pure compounds, If you do not receive an email within 10 minutes, your email address may not be registered, reaction search for this species. Cases of respiratory irritation are common immediate responses to human exposure to acid anhydrides evident as a conjunctival, nasal and bronchial irritation. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases. In terms of their mode of action, the anhydride is proposed to react with the hydroxyl groups on the cellulose, forming an ester. Maleyl-proteins are generally soluble and disaggregated at neutral pH. [all data], Cox and Pilcher, 1970 Products treated with it show reduced penetration of aqueous media, such as inks or drinks (like milk or fruit juices).[1]. [19] This suggests that the ASA-induced hydrophobing is rather based on an adsorptive and associative interaction of the alkenylsuccinic acids (formed by rapid hydrolysis in the aqueous medium) with the constituents of the paper pulp (cellulosic fibers and fillers, such as precipitated calcium carbonate or cationic polymers). Please check your email for instructions on resetting your password. Wiss. Handling, Storage, and Precautions: use only in a chemical fume hood; severe eye irritant; moisture sensitive; store in cool dry place. the library and The disadvantages of ASA are in particular: Faster reaction and lower input quantities (and thus material costs in one of the most costly steps in papermaking) speak for the use of ASA, while AKD more sustainable water repellency and better adhesion in material composites with e.g. Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein, Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), References, Notes, Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Mass spectrum (electron ionization), References, Notes. Flash point data for this compound are not available, however, it is probably combustible. There are some reports of contact urticaria via airborne exposure without skin contact. Inhibition studies and passive transfer studies have supported the specificity of IgE antibodies, but cross-reactivity among some acid anhydrides has been reported.     T = temperature (K). National Oceanic and Atmospheric Administration. Enthalpies of combustion of succinic anhydride, glutaric anhydride, and glutarimide, ; Van Miltenburg, J.C.; De Kruif, C.G., [2] The application is similar to that for alkyl ketene dimers. H315: Causes skin irritation. in these sites and their terms of usage. H318: Causes serious eye damage. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Unlimited viewing of the article/chapter PDF and any associated supplements and figures. SRD 103a – Thermo Data Engine (TDE) for pure compounds. AKD are at room temperature aqueous dispersions, while ASA are oil-in-water emulsions. In the SHOP process, even-numbered 1-alkenes (CH2=CH-(CH2)n-CH3, produced by oligomerization of ethylene) are isomerized on magnesium oxide catalysts with displacement of the double bond to a position along the carbon chain. [all data], Weast and Grasselli, 1989

[3], The patent describes the reaction of the alkenes with excess maleic anhydride at 200 °C in an autoclave.