EVANS CHEMETICS, INC.

EVANS ÏV1 ETICS, 250 ËOE* 43rd Street, New York 17, New York 5 THIOVANIC ÀÇir»* î(Thipg lycpIi c Atici)} ι Available as : 1. Thiovanic Acid —68-72% aqueous solution of vacuum- distilled thioglycolic acid. SPECIFICATIONS : Thiovanic Acid: Assay HS-CH^COOH 68-72%'** itou .............................. x . w ppus a.9 *. ^. mo. A. Copper 1.0 ppm as Cu max. Ash 0.05% max. Color—A.P.H-A Water-white Odor Faint Sulfidic ••Less than 2% of other organic acids (Dithiodigly- colic» Acetic and Glycolic) 2. Technical and purified grades in 96-99% concentrations. PROPERTIES: Boiling Point 96°C at 5mm (Uncorrected) 108 e C at 15mm Melting Point — 16.5°C Specific Gravity 1.325 a t 20°C Dissociation Constant - 2.1 χ 10~* at 25 e C Normal Oxidation Potential 027 volt at 25 e C Miscible with Water, Alcohol, Ether, Chloroform, Benzene. THiOPHENjOL· Mol. Wt -. 110.17 B.P 71.0°C at 15mm Sp.G 1 -075 Assay 99% Min Ιβο-Octyl Thioglycolate: B.P 125°C at 17mm Sp.G 9736 at 20 e C R.I 1.4606 at 21 e C Odor Paint Fruity Other esters available on request 2-ETHYtHEXYLfMÉRCAPTÂN Mol. Wt 146.3 Purity 95% minimum Color Water-white B.P 90°C at 35mm Sp.G 8543 at 20°C JggHIOVANÔL* | (Monotbjptj iycerbl)" Mol. Wt 108.2 Color Water-white B.P 118 e C at 5mm Sp.G .1.2480 at 20 e C JlTHlpMÀLlC AGIJD;I (Môrcaptos;uccim Λ Mol. Wt. 150.15 M.P- 150°C Min. Ash 03% Max. Fe 20 ppm Max. Assay 97% Min ( EYANACID 3CS^^^^^ (CarhoxYmethylmèrcaptbsuccinicr: "ν.;· ; ν ; Mol. Wt 2082 Appearance White Powder Melting Range 136-138 e C Solubility in Water 147/100g at 25°C Toxicity Preliminary tests indicate the toxicity is somewhat less than that of citric acid In addition to the usual reactions of carboxylic acid, including the formation of interesting partial esters» this acid has excellent metal deactivating properties. • Tracle Mark Specialists in Organic Sulfu^^Wîffip PHÈNYLMERCAPTOÀCETIC ACID Mol. Wt 1682 M.P 63 e C Min. Ash 0.1% Max. Solubility in Water 13g/100cc i^ÇHLpROW Mol. Wt 144.61 * ' ' M.P - . .51,5°C Min. I' C? Ash - . .0.1 % Max. Assay 99% Min. ^MERÇAFÔETHÂMINE Moi. Wt 113.61 M.P 69 e C Min. Assay 96% Min. Oujer salts available on request ^r,- , Λ m m.ii.m.MiH—«"^ Mercapfans—Sulfides—Merceâ|& ΜφΒ&^'Φ'?'. VOLUME 3 3. N O . 2 6 · · · JUNE 2 7, 1955 2757 HIOGLYCOL1C ACID ^ ^ ESTERS !OF •·::„. fHI00LYCOLIC ACID; gas

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Transcript of EVANS CHEMETICS, INC.

EVANS ÏV1 ETICS, 250 ËŒ* 43rd Street, New York 17, New York

5 T H I O V A N I C ÀÇir»* î ( T h i p g lycpIi c A t i c i ) } ι

Available as : 1. Thiovanic Acid —68-72% aqueous solution of vacuum-disti l led thioglycolic acid.

SPECIFICATIONS : Thiovanic Ac id :

Assay HS-CH^COOH 68-72%'** i t o u . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x . w p p u s a.9 *. .̂ m o . A . Copper 1.0 ppm as Cu max. Ash 0.05% max. Color—A.P.H-A Water-white Odor Faint Sulfidic • • L e s s than 2 % of other organic acids (Dithiodigly-colic» Acetic and Glycolic)

2 . Technical and purified grades in 96-99% concentrations. P R O P E R T I E S :

Boil ing Point 96°C at 5mm (Uncorrected) 108eC at 15mm

Melting Point — 16.5°C Specific Gravity 1.325 at 20°C Dissociat ion Constant - 2.1 χ 10~* a t 25eC Normal Oxidation Potential 027 volt at 25e C Miscible with Water, Alcohol, Ether, Chloroform, Benzene.

THiOPHENjOL·

Mol. W t -. 110.17 B .P 71.0°C at 15mm Sp.G 1 -075 Assay 99% Min

Ιβο-Octyl Thioglycolate: B.P 125°C at 17mm Sp.G 9736 at 20eC R.I 1.4606 at 21eC Odor Paint Fruity

Other esters available on request

2-ETHYtHEXYLfMÉRCAPTÂN

Mol. Wt 146.3 Purity 95% minimum Color Water-white B.P 90°C at 35mm Sp.G 8543 at 20°C

JggHIOVANÔL* | (Monotbjptj iycerbl)"

Mol. Wt 108.2 Color Water-white B.P 118eC at 5mm Sp.G .1.2480 at 20 eC

J l T H l p M À L l C A G I J D ; I ( M ô r c a p t o s ; u c c i m Λ

Mol. Wt. 150.15 M.P- 150°C Min. Ash 0 3 % Max. Fe 20 ppm Max. Assay 97% Min

( EYANACID 3CS^^^^^ (CarhoxYmethylmèrcaptbsuccinicr: "ν.;·;ν;

Mol. W t 2082 Appearance White Powder Melt ing Range 136-138eC Solubility in Water 147/100g at 25°C Toxic i ty Preliminary tests indicate

the toxicity is somewhat less than that of citric acid

In addition to the usual reactions of carboxylic acid, including the formation of interesting partial esters» this acid has excel lent metal deactivating properties.

• Tracle Mark

Specialists in Organic Sul fu^^W^if f ip

PHÈNYLMERCAPTOÀCETIC ACID

Mol. Wt 1682 M.P 63 eC Min. Ash 0.1% Max. Solubility in Water 13g/100cc

i^ÇHLpROW

Mol. Wt 144.61 * ' ' M.P - . .51,5°C Min. I ' C? Ash - . .0.1 % Max. Assay 99% Min.

^MERÇAF^OETH^AMINE

Moi. Wt 113.61 M.P 69 eC Min. Assay 96% Min.

Oujer salts available on request ^r,- ,Λ m m.ii.m.MiH—«"^

Mercapfans—Sulfides—Merceâ|& ΜφΒ&^'Φ'?'.

V O L U M E 3 3. N O . 2 6 · · · J U N E 2 7, 1955 2 7 5 7

HIOGLYCOL1C ACID