ÏV1 E T I C S ,
EVANS
250 ˌ* 43rd Street, New York 17, N e w York
ι
5 THIOVANIC ÀÇir»* î ( T h i p g lycpIi c A t i c i ) }
HIOGLYCOL1C ACID
Available as : 1. Thiovanic Acid —68-72% aqueous solution of vacuumdistilled thioglycolic acid. SPECIFICATIONS : Thiovanic Acid: Assay HS-CH^COOH 68-72%'** itou
^ ^ ESTERS !OF •·::„. fHI00LYCOLIC A C I D ;
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x . w p p u s a.9 *. ^. m o . A .
Copper Ash Color—A.P.H-A Odor • • L e s s than 2 % of other organic colic» Acetic and Glycolic)
1.0 ppm as C u max. 0.05% max. Water-white Faint Sulfidic acids (Dithiodigly-
Ιβο-Octyl Thioglycolate: B.P Sp.G R.I Odor
Other esters available on request
2 . Technical and purified grades in 96-99% concentrations. PROPERTIES: Boiling Point (Uncorrected) Melting Point Specific Gravity D i s s o c i a t i o n Constant Normal Oxidation Potential Miscible Benzene.
with
Water,
Alcohol,
96°C a t 5mm 108 e C at 15mm — 16.5°C 1.325 a t 20°C 2.1 χ 10~* a t 25 e C 027 volt at 25 e C Ether,
2-ETHYtHEXYLfMÉRCAPTÂN Mol. Wt Purity Color B.P Sp.G
Chloroform,
-.
Mol. W t Color B.P Sp.G
110.17 71.0°C at 15mm 1 -075 99% Min
JlTHlpMÀLlC A G I J D ; I (Môrcaptos;uccim
Λ
Mol. Wt. M.PAsh Fe Assay
Mol. Wt M.P Ash Solubility in Water
; ;
"ν.;· ν
Mol. W t Appearance M e l t i n g Range Solubility in Water Toxicity
2082 White Powder 136-138 e C 147/100g at 25°C Preliminary tests indicate the toxicity is somewhat less than that of citric acid In addition to the usual reactions o f carboxylic acid, in cluding the formation of interesting partial esters» this acid has excellent metal deactivating properties.
gas
·
·
JUNE
2 7,
i^ÇHLpROW Mol. Wt M.P Ash Assay
144.61 - . .51,5°C Min. - . .0.1 % Max. 99% Min.
Moi. W t M.P Assay
Specialists in Organic S u l f u ^ ^ W ^ i f f i p
NO. 26 ·
1682 63 e C Min. 0.1% Max. 13g/100cc
* '' I ' C?
^MERÇAF^OETH^AMINE
• Tracle Mark
3 3.
108.2 Water-white 118 e C at 5mm .1.2480 at 20 e C
PHÈNYLMERCAPTOÀCETIC ACID
150.15 150°C Min. 0 3 % Max. 20 ppm Max. 97% Min
EYANACID 3CS^^^^^ ( (CarhoxYmethylmèrcaptbsuccinicr:
VOLUME
146.3 95% minimum Water-white 90°C at 35mm 8543 at 20°C
JggHIOVANÔL* | (Monotbjptj iycerbl)"
THiOPHENjOL· Mol. W t B.P Sp.G Assay
125°C at 17mm 9736 at 20 e C 1.4606 at 21 e C Paint Fruity
1955
113.61 69 e C Min. 96% Min. Oujer salts available on request m
^r,- ,Λ m.ii.m.MiH—«"^
Mercapfans—Sulfides—Merceâ|& ΜφΒ&^'Φ'?'.
2757
