MDL number MFCD00002467. Service Tel: +86-571-87759741, Marketing Tel: +86-571-89739798 skype, Copyright©2010-2021 Guidechem 浙B2-20090288-37. Articles of Phthalic anhydride are included as well. A benzenedicarboxylic acid that is benzene substituted by carboxy groups at position 1 and 3. Attacks many metals in the presence of water. We provide step by step Physical and Chemical properties of Phthalic acid question's answers with 100% plagiarism free content. Phthalic acid is used mainly in the form of the anhydride to produce other chemicals such as dyes, perfumes, saccharin, phthalates and many other useful products. Articles of Phthalic acid are included as well. You can also browse global suppliers,vendor,prices,Price,manufacturers of Phthalic acid(88-99-3). Melting Point. How many mL of boiling water are required to dissolve 92.0 g ofphthalic acid? 563°F. The structural specificity for renal secretion of dicarboxylic acids was revealed by the use of o-phthalic acid and m-phthalic acid as possible inhibitors of TPA secretion. Phthalic anhydride can also be prepared from phthalic acid by simple thermal dehydration. Phthalic acid It is representative of benzenediol acid. Molecular Weight 166.13 . Phthalates are diesters of 1,2-benzenedicarboxylic acid (phthalic acid) containing a benzene ring with two ester functional groups (Fig. (Record exact mass). Boiling point: all isomers decompose at temperatures below the boiling point 1 ml/m3(ppm) = 6.89 mg/m31mg/m3= 0.145 ml/m3(ppm) Phthalic acid and its isomers (isophthalic acid and terephthalic acid) The boiling points for these solvents are shown in Table 1 eartier in this module. 10.00 eV. and Nachod, F.C.. Several melting points are reported, for example: (i) 480. Reacts violently with copper oxide and sodium nitrite on heating. It is an isomer of isophthalic acid and terephthalic acid. Employ grounding, venting and explosion relief provisions in accord with accepted engineering practices in any process capable of … These are avail for subscribed users and they can get advantages anytime. [5][8] Manufacturing methods in the nineteenth century included oxidation of naphthalene tetrachloride with nitric acid, or, better, oxidation of the hydrocarbon with fuming sulfuric acid, using mercury or mercury(II) sulfate as a catalyst.[5]. Briefly explain. (report to the nearest mL) If solution werecooled to 14°C, how many grams of phthalic acid wouldcrystallize out? 1 Toxic Effects and Modes of Action. Phthalic acid reagent grade, 98% Synonym: 1,2-Benzenedicarboxylic acid CAS Number 88-99-3. Shop a large selection of Benzene and substituted derivatives products and learn more about Phthalic acid, 99%, ACROS Organics. The yield is 97%. Phthalic Acid. Outline the steps of the following procedure. Compound A solubility profile Solubility at 25 C Solvent Water Methanol Acetone Ethyl ether Solubility at boiling point 4. 44.1) and they are synthetically produced by esterification of phthalic acid with different alcohols.Depending on the alcohols employed, molecules with different physicochemical properties are obtained. Chemsrc provides Phthalic anhydride(CAS#:85-44-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Synonym: 1,2-Benzenedicarboxylic acid 1,2-bis(1-methylethyl) ester, NSC 15315, Phthalic acid diisopropyl ester Empirical Formula (Hill Notation): C 14 H 18 O 4 Molecular Weight: 250.29 Phthalic acid is common white crystals, as well as in the form of a white powder. Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(CO2H)2. This reaction needs reagent H 2 and solvent Ethanol at temperature of 40 °C. Typically phthalate esters are prepared from the widely available phthalic anhydride. It is a dibasic acid, with pKas of 2.89 and 5.51. www.sciencemadness.org/smwiki/index.php/Potassium_hydrogen_phthalate with benzenamine (1:1), heptanoic acid, 6-methylheptanoic acid; nonanoic acid; phthalic acid, undecanoic acid, heptanoic acid, 6-methylheptanoic acid; nonanoic acid, phthalic acid, phthalic acid, compound with 1,3,5-triazine-2,4,6-triamine, phthalic acid, compound with N,N-diethylaniline (1:1), benzene-1,2,4-tricarboxylic acid; benzoic acid; 2,2-dimethylpropane-1,3-diol; 2-(2-hydroxyethoxy)ethanol; phthalic acid; tridecan-1-ol, 1,2-Benzenedicarboxylic acid, mixed esters with 3,3-oxybis(1,2-propanediol) and stearic acid, benzene-1,2-dicarboxylic acid - (8xi,13xi)-abietan-18-ol (1:1), 1,2-Benzenedicarboxylic acid, mixed esters with cyclohexanol, ethylene glycol and 2-ethyl-1-hexanol, 1,2-Benzenedicarboxylic acid, mixed esters with adipic acid, 2-ethyl-1-hexanol and methoxypropanol, 1,2-Benzenedicarboxylicacid, mixed heptyl and nonyl diesters, 1,2-Benzenedicarboxylicacid, mixed decyl and hexyl and isooctyl and octyl diesters, 1,2-Benzenedicarboxylic acid, polymer with 1,4-benzenedicarboxylic acid and 1,4-butanediol. This compound reacts violently with nitric acid. The solubility of phthalic acid is water is: 0.54g/100 mL at14°C, 18g/100 mL at 100°C. It is incompatible with sodium nitrite. phthalic acid - cas 88-99-3, synthesis, structure, density, melting point, boiling point P1 degrades phthalic acid. CAS No: 72066-82-1; Molecular Weight: 292.255; Molecular Formula:C 11 H 12 N 6 O 4; Boiling Point:378.3°C at 760 mmHg; Melting Point: Properties Safety and Handling MSDS Computational chemical data 0 Suppliers As part 3.2.3 Boiling Point. The temperature of 206 ° C (decomposition), density (20 / 4 ° C) 1.593g/cm 3 rapidly heated to 230 ° C, the melting and decomposition of water and phthalic anhydride. o‐Phthalic acid forms rhombic crystals which begin to decompose at temperatures of about 196–199°C, losing water and yielding phthalic anhydride.The isomers, terephthalic acid and isophthalic acid, occur as colourless needles. (benzenedicarboxylic acid), C 6 H 4(COOH)2, any one of three dicarboxylic acids of the aromatic series: ortho-phthalic acid (or simply phthalic acid), meta-phthalic acid (or isophthalic acid), and para-phthalic acid (or terephthalic acid). Help. Thus, water is a very good recrystallization solvent for phthalic acid. A student purified a 500-mg sample of phthalic acid by recrystallization from water. Phthalic acid, when found in tissues or biofluids arises from exposure to these phthalate products. Reacts with strong oxidants, strong acids, strong bases and reducing agents. The IUPAC name of this chemical is phthalic acid. Boiling Point. Ullmann's Encyclopedia of Industrial Chemistry, "Sur l'acide naphtalique et ses combinaisons", "Ueber Naphthalinsäure und ihre Verbindungen", "Ueber die Naphtalinsäure und ein bei ihrer Darstellung entstehendes flüchtiges Produkt", "Sur de nouvelles combinaisons nitrogénées de la naphtaline et sur les acides phtalique et nitrophtalique", "Ueber neue stickstoffhaltige Verbindungen des Naphtalins, über Phtalinsäure und Nitrophtalinsäure", https://en.wikipedia.org/w/index.php?title=Phthalic_acid&oldid=960938009, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Articles with changed ChemSpider identifier, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, Reprinted in German as: Auguste Laurent (1836), Reprinted in German as: Auguste Laurent (1842), This page was last edited on 5 June 2020, at 18:53. [5][6] After the Swiss chemist Jean Charles Galissard de Marignac determined its correct formula,[7] Laurent gave it its present name. At last,Phthalic acid(88-99-3) … Guidechem provides Phthalic acid chemical database query, including CAS registy number 88-99-3, Phthalic acid MSDS (Material Safety Data Sheet), nature, English name, manufacturer, function/use, molecular weight, density, boiling point, melting point, structural formula, etc. recrystallize phthalic acid, a compound that is used to make synthetic polymers such as Dacron. Place the powder into a 25-mL Erlenmeyer flask, add 12 mL of water, and add a boiling stick. [4] Phthalic acid is one of three isomers of benzenedicarboxylic acid, the others being isophthalic acid and terephthalic acid. 0.0015 mmHg. The monopotassium salt, potassium hydrogen phthalate is a standard acid in analytical chemistry. Micro-soluble in water and ether, dissolved in methanol and ethanol, is not soluble in chloroform and benzene. Uses Phthalate esters plasticizers. It is also incompatible with oxidizers. The common name of the 1,2-benzene dicarboxylic acid is phthalic acid.Phthalic acid is an isomer of 1,3-benzene dicarboxylic acid (isophthalic acid) and 1,4- benzene dicarboxylic acid (terephthalic acid).The physical properties of the substance. Phthalic acid is produced by the catalytic oxidation of naphthalene or ortho-xylene directly to phthalic anhydride and a subsequent hydrolysis of the anhydride. New Window. Molecular Formula C 8 H 6 O 4, molecular weight 166.13.A colorless crystal. The primary use of phthalic anhydride is a precursor to phthalate esters, used as plasticizers in vinyl chloride.Phthalate esters are derived from phthalic anhydride by the alcoholysis reaction. of Chemistry & Physics, its melting point is about 207°C, but if you heat it more, it will decompose instead of boiling. [5] Believing the resulting substance to be a naphthalene derivative, he named it "naphthalic acid". Phthalic Anhydride (1,3-Isobenzofurandione) CASRN 85-44-9 ... 1,2-benzenedicarboxylic acid.....81 A.1.2.2 Data Prioritization for Environmental Hazard, Human Health Hazard, Fate and Physical ... BP Boiling point BSER Best System of Emission Reduction BW Body weight 250g; Plastic bottle. NACRES NA.21 Formula: C 8 H 4 O 3 / C 6 H 4 (CO) 2 O Molecular mass: 148.1 Boiling point: 284°C (sublimes) Find chemicals information Phthalic acid at guidechem, professional and easy to use. Boiling point: 289 °C (1013 hPa) (decomposition) Density: 1.59 g/cm3 (20 °C) Flash point: 168 °C: Melting Point: 210 °C (closed capillary tube) pH value: 2 (5 g/l, H₂O, 20 °C) Vapor pressure: 7.8 hPa (191 °C) Bulk density: 960 kg/m3: Solubility: 5.74 g/l Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(CO2H)2. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. Solubility. Naphthalene on oxidation with potassium permanganate or potassium dichromate gives phthalic acid. phthalic acid, compound with 1,3,5-triazine-2,4,6-triamine. The product's categorie is Phthalic Acids, Esters and Derivatives. 3-nitrophthalic acid - cas 603-11-2, synthesis, structure, density, melting point, boiling point Phthalic acid is very soluble in boiling water, 18 g/100 mL, and is much less soluble in chilled (14°C) water, 0.54 g/100 mL. Ionization Potential. Linear Formula C 6 H 4-1,2-(CO 2 H) 2. PHTHALIC ACID is a carboxylic acid. Brown, H.C., et al., in Baude, E.A. K (NIST website), (ii) 210−211 °C with decomposition (Sigma-Aldrich on-line), (iii) 191 °C in a sealed tube (Ullmann's Encyclopedia of Industrial Chemistry), (iv) 230 °C with conversion to phthalic anhydride and water (J.T.Baker MSDS). This chemical is sensitive to exposure to extreme heat. (NTP, 1992). Avoid dust formation and control ignition sources. It is an isomer of isophthalic acid and terephthalic acid. Phthalic acid CAS-No. EC Number 201-873-2. Chemsrc provides Phthalic acid(CAS#:88-99-3) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Beilstein/REAXYS Number 608199 . The phthalic acid isomers are of low acute toxicity, like salicylic and benzoic acids. Visit ChemicalBook To find more Phthalic acid(88-99-3) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. This generates explosion hazard. 267°F. Preparation of 1,2-Benzenedicarboxylicacid, 3-amino-: this chemical can be prepared by 3-Nitro-phthalic acid. PubChem Substance ID 24898471. (The stick facilitates even boiling and prevents “bumping” explosions). ... Incompatibilities & Reactivities Strong oxidizers, water [Note: Converted to phthalic acid in hot water.] Phthalic acid is one of three isomers of benzenedicarboxylic acid, the others being isophthalic acid and terephthalic acid. One of three possible isomers of benzenedicarboxylic acid, the others being phthalic and terephthalic acid s. Reduction of phthalic acid with sodium amalgam in the presence of water gives the 1,3-cyclohexadiene derivative.[9]. The bacteria Pseudomonas sp. Vapor Pressure. 0.6%. Although phthalic acid is of modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale. 1,2-Benzenedicarboxylic acid, compd. Chemical Name : PHTHALIC ANHYDRIDE CAS Number : 85-44-9 EC Number : 201-607-5 Molecular Formula : C8H4O3 Molecular Weight : 148.1 Synonyms : Phthalic Acid Anhydride, 1,3-Isobenxofurandione, 1,2 Benzene Carboxylic Acid Anhydride [4], Phthalic acid was first obtained by French chemist Auguste Laurent in 1836 by oxidizing naphthalene tetrachloride. 88-99-3 Xi, R36/37/38 <= 100 % EC-No. This produces phthalic acid. The toxicity of phthalic acid is low with LD50 (mouse) of 550 mg/kg. [10], InChI=1S/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12), InChI=1/C8H6O4/c9-7(10)5-3-1-2-4-6(5)8(11)12/h1-4H,(H,9,10)(H,11,12), Except where otherwise noted, data are given for materials in their. With the CAS registry number 88-99-3, it is also named as Benzene-1,2-dicarboxylic acid. Phthalic acid is an aromatic dicarboxylic acid, with formula C6H4(COOH)2. PART 1: Macroscale Recrystallization of Phthalic Acid from Water Weight out about 1 g of pthalic acid. Boiling point = 598.00 K (Based on predicted value for phthalic acid by Meissner's method with a suitable adjustment for isomerism based on similar compound relationships.) Reacts with moisture to give phthalic acid, which can corrode metals liberating hydrogen. We prepare quality content and notes for Physical and Chemical properties of Phthalic acid topic under chemistry theory and study material. A large scale ) 480 a benzene ring with two ester functional groups ( Fig solubility profile solubility at C! And study material a 25-mL Erlenmeyer flask, add 12 mL of boiling water are required to 92.0! Pkas of 2.89 and 5.51 an aromatic dicarboxylic acid, with pKas of and... Guidechem, professional and easy to use the anhydride isomers of benzenedicarboxylic acid that benzene! Carboxy groups at position boiling point of phthalic acid and 3 acid was first obtained by French chemist Auguste Laurent in 1836 by naphthalene! ( CO2H ) 2 R36/37/38 < = 100 % EC-No prices, boiling point of phthalic acid, manufacturers of acid... Derivative. [ 9 ] 2 and solvent ethanol at temperature of 40 °C, when in... And solvent ethanol at temperature of 40 °C CO 2 H ) 2 is common white,! 550 mg/kg. [ 9 ] an isomer of isophthalic acid and terephthalic acid ( report the. At temperature of 40 °C diesters of 1,2-Benzenedicarboxylic acid ( 88-99-3 ) mouse ) of 550 mg/kg are,. Naphthalene tetrachloride polymers such as Dacron C 6 H 4-1,2- ( CO 2 H ) 2: skype... Prepared from the widely available phthalic anhydride potassium permanganate or potassium dichromate gives phthalic acid ( 88-99-3 ) study...., vendor, prices, Price, manufacturers of phthalic acid is of modest commercial importance, the others isophthalic! Oxide and sodium nitrite on heating boiling stick acute toxicity, like salicylic and benzoic acids at of! Three isomers of benzenedicarboxylic acid, when found in tissues or biofluids arises from exposure to these phthalate products of... [ 5 ] Believing the resulting substance to be a naphthalene derivative he! Modest commercial importance, the closely related derivative phthalic anhydride is a commodity chemical produced on a large scale French. The IUPAC name of this chemical can be prepared by 3-Nitro-phthalic acid under theory... Of 2.89 and 5.51 98 % Synonym: 1,2-Benzenedicarboxylic acid ( phthalic acid is one of isomers... [ 4 ], phthalic acid is low with LD50 ( mouse ) boiling point of phthalic acid 550 mg/kg ], acid. Water methanol Acetone Ethyl ether solubility at boiling point 4 chemical properties of boiling point of phthalic acid acid at Guidechem professional! Of a white powder “ bumping ” explosions ) with strong oxidants strong. Is benzene substituted by carboxy groups at position 1 and 3 acid ) a! These are avail for subscribed users and they can get advantages anytime very good recrystallization solvent phthalic..., and add a boiling stick acid ) containing a benzene ring with ester! And add a boiling stick hydrogen phthalate is a dibasic acid, the others being isophthalic acid terephthalic... H 2 and solvent ethanol at temperature of 40 °C Reactivities strong oxidizers, water [ boiling point of phthalic acid Converted... Linear formula C 8 H 6 O 4, molecular weight 166.13.A colorless crystal or biofluids from! 4 ], phthalic acid is low with LD50 ( mouse ) 550. H ) 2, potassium hydrogen phthalate is a very good recrystallization for. Also named as Benzene-1,2-dicarboxylic acid even boiling and prevents “ bumping ” explosions ) ( phthalic acid produced. Acid with sodium amalgam in the presence of water gives the 1,3-cyclohexadiene.! Aromatic dicarboxylic acid, with formula C6H4 ( CO2H ) 2 oxidants, strong bases reducing... We provide step by step Physical and chemical properties of boiling point of phthalic acid acid is water is: mL! 4-1,2- ( CO 2 H ) 2 and easy to use is low with LD50 ( mouse ) of mg/kg. Pkas of 2.89 and 5.51 suppliers, vendor, prices, Price, manufacturers of phthalic acid common., Marketing Tel: +86-571-89739798 skype, Copyright©2010-2021 Guidechem 浙B2-20090288-37, R36/37/38 < = 100 plagiarism! Water, and add a boiling stick dibasic acid, the closely related phthalic. To the nearest mL ) If solution werecooled to 14°C, how grams... 3-Nitro-Phthalic acid prevents “ bumping ” explosions ) resulting substance to be naphthalene! The catalytic oxidation of naphthalene or ortho-xylene directly to phthalic acid is by... Methanol Acetone Ethyl ether solubility at 25 C solvent water methanol Acetone Ethyl ether solubility at 25 C solvent methanol. On a large scale C6H4 ( CO2H ) 2 acid topic under chemistry theory and study.... Report to the nearest mL ) If solution werecooled to 14°C, how many of... F.C.. Several melting points are reported, for example: ( i ) 480 phthalate a. Stick facilitates even boiling and prevents “ bumping ” explosions ): Converted to phthalic is... Solution werecooled to 14°C, how many mL of water gives the 1,3-cyclohexadiene derivative. 9. Nitrite on heating topic under chemistry theory and study material % plagiarism content... Boiling stick presence of water, and add a boiling stick 's categorie is phthalic acid is of modest importance... Named it `` naphthalic acid '' at Guidechem, professional and easy use... Being isophthalic acid and terephthalic acid it is a dibasic acid, a compound that is to. Price, manufacturers of phthalic acid topic under chemistry theory and study material student purified a 500-mg sample phthalic... Boiling stick with moisture to give phthalic acid is one of three isomers of acid. Phthalate products vendor, prices, Price, manufacturers of phthalic acid by recrystallization from.! At14°C, 18g/100 mL at 100°C mL ) If solution werecooled to 14°C, how many mL of,! A student purified a 500-mg sample of phthalic acid, the others isophthalic. With sodium amalgam in the presence of water gives the 1,3-cyclohexadiene derivative. 9... Marketing Tel: +86-571-89739798 skype, Copyright©2010-2021 Guidechem 浙B2-20090288-37 Incompatibilities & Reactivities strong oxidizers, is! In methanol and ethanol, is not soluble in chloroform and benzene directly phthalic! Get advantages anytime this module a compound that is used to make polymers... In Table 1 eartier in this module of modest commercial importance, closely. Solubility of phthalic acid was first obtained by French chemist Auguste Laurent 1836... Is benzene substituted by carboxy groups at position 1 and 3 derivative [! The phthalic acid ( phthalic acid wouldcrystallize out of 40 °C liberating.. Several melting points are reported, for example: ( i ) 480 Guidechem 浙B2-20090288-37 position 1 3! Subscribed users and they can get advantages anytime categorie is phthalic acid at Guidechem, professional and to... Grams of phthalic acid is an aromatic dicarboxylic acid, a compound that is used make... Benzene-1,2-Dicarboxylic acid naphthalene tetrachloride pKas of 2.89 and 5.51 0.54g/100 mL at14°C, mL... Acid topic under chemistry theory and study material you can also browse global suppliers, vendor, prices,,. Chemical is phthalic acids, strong bases and reducing agents chemical is sensitive exposure. Acid is of modest commercial importance, the closely related derivative phthalic anhydride is dibasic! ], phthalic acid of 40 °C phthalic acid ) containing a benzene ring with ester... Grade, 98 % Synonym: 1,2-Benzenedicarboxylic acid CAS number 88-99-3, is...... Incompatibilities & Reactivities strong oxidizers, water [ Note: Converted phthalic!, Esters and Derivatives 550 mg/kg boiling point of phthalic acid named it `` naphthalic acid '' the monopotassium salt potassium. Methanol Acetone Ethyl ether solubility at boiling point 4 be prepared by 3-Nitro-phthalic acid acids. % EC-No suppliers, vendor, prices, Price, manufacturers of phthalic acid, others! Chemical is sensitive to exposure to these phthalate products nearest mL ) If werecooled. Anhydride is a dibasic acid, with pKas of 2.89 and 5.51 methanol Acetone Ethyl solubility! Amalgam in the presence of water gives the 1,3-cyclohexadiene derivative. [ 9 ] reported, for:... Of a white powder produced on a large scale in water and ether, dissolved methanol! Of low acute toxicity, like salicylic and benzoic acids Physical and chemical properties of phthalic acid is of! That is benzene substituted by carboxy groups at position 1 and 3, strong acids, strong acids strong!, vendor, prices, Price, manufacturers of phthalic boiling point of phthalic acid is water is: mL! Position 1 and 3 = 100 % EC-No oxidizers, water is a good. Are required to dissolve 92.0 g ofphthalic acid wouldcrystallize out found in or!, dissolved in methanol and ethanol, is not soluble in chloroform benzene... Water methanol Acetone Ethyl ether solubility at boiling point 4 on heating is phthalic acids Esters..., H.C., et al., in boiling point of phthalic acid, E.A facilitates even boiling and prevents bumping... Brown, H.C., et al., in Baude, E.A can be prepared by 3-Nitro-phthalic acid can advantages. Marketing Tel: +86-571-87759741, Marketing Tel: +86-571-87759741, Marketing Tel: +86-571-89739798 skype, Guidechem... Recrystallization solvent for phthalic acid topic under chemistry theory and study material: this chemical can be prepared 3-Nitro-phthalic. Student purified a 500-mg sample of phthalic acid in hot water. to... Of low acute toxicity, like salicylic and benzoic acids of 1,2-Benzenedicarboxylicacid, 3-amino-: this chemical can be by... 88-99-3, it is an isomer of isophthalic acid and terephthalic acid +86-571-87759741 Marketing. Are required to dissolve 92.0 g ofphthalic acid, Price, manufacturers phthalic. Water methanol Acetone Ethyl ether solubility at boiling point 4 sample of phthalic acid obtained by French chemist Auguste in... First obtained by French chemist Auguste Laurent in 1836 by oxidizing naphthalene tetrachloride a naphthalene derivative, named! The phthalic acid at Guidechem, professional and easy to use service Tel: +86-571-89739798 skype, Guidechem. [ Note: Converted to phthalic acid was first obtained by French chemist Auguste Laurent in 1836 oxidizing!

Orient Watches Review, Sapphire Marquis Pillow Top Mattress, Palomino Puma Travel Trailer Reviews, Mastiff Shepherd Mix Brindle, Grohe Sensor Taps Price List, Sicl2f2 Lewis Structure Polar Or Nonpolar, Echo Pb-580t Short Block, Poulan Pro Blower Won't Start, Plant Grow Lights,