You Get Commercial Chemicals with Laboratory Purity...
WhenYouOrder Hooker Sulfides With a maximum iron content of only 8PPM in Hooker Sodium Sulfide and only 5PPM in the Sodium Sulfhydrate you can understand why we are proud of the purity of these Hooker Sulfides. This minute amount of iron is matched by an especially low amount of other impurities in these Hooker products. Packaged in the form of small flakes, both products are quickly and completely soluble in water. The clear solution can be used without settling or decanting. For smooth reactions—for good yields without troublesome side reactions from impurities, your safest course is to use Hooker Sulfides. Advanced manufacturing techniques, carefully controlled operations, carefully selected raw materials account for Hooker's ability to produce these pure sulfides on a commercial basis. As an added convenience for those who use sodium sulfhydrate in large quantities this chemical is also available in liquid form in tank car quantities. Liquid sodium sulfhydrate is shipped in concentrations of approximately 37% or 45%. Specifications will be furnished upon request. Technical Data Sheets and samples will be sent to qualified personnel making requests on their business letterheads. DESCRIPTION
SODIUM SULFIDE No2S Mol. Wt 78.1 M. P 100°c Light buff colored solid in flake form. Rapidly soluble in water; slightly soluble in alcohol; insoluble in ether.
SODIUM SULFHYDRATE NaSH (sodium hydrosulfide)
Mol. Wt 56.1 M. P 55°C Light lemon colored solid in flake form. Completely and
HOOKER RESEARCH PRESENTS 2-CHLORO-5-NITROBENZOTRIFLUORIDE
Synonym . . . . 2-chloro-5-nitrotrifluoromethylbenzene Molecular Weight 225.56 Freezing Point (l.c.p.) 16.8°C Boiling Point 230.0°C Refractive Index n20/D 1.5009 Specific Gravity, 25/15.5°C 1.5520
Another new development of Hooker Research in benzotrifluorides is 2-chloro-5-nitrohcnzotri fluoride. It is a straw colored, thin, oily liquid. Because this chemical is so new, information available on its uses
is limited. Literature does indicate however, its use as an intermediate in the preparation of dyestuffs. Hooker 2-chloro-5-nitrobenzotrifluoride is at present available in pilot plant quantities. Those who arc interested in investigating the potentials of 2-chloro 5-nitrobenzotrifluoridc may obtain samples by writing on their business letterheads. Technical Data sheets giving more complete physical and chemical information are also available.
USES
ANALYSIS
Na2S
60 to 62%
NaCl
1.5% Max.
Other Na Salts Fe
2.0% Max. 8 ppm Max.
Cu, Ni, Cr, Mn, Pb 1 ppm Max. Water of crystallization . . 36.5 to 34.5% NaSH
70 to 72%
Na2S NaCl
2.5% Max. 0.8% Max.
Na2SO3 and NaHCO3
0.4% Max.
In unhairing hides and wool pulling; desulfurizing viscose rayon; in manufacture of dyestuffs, chemical intermediates, paper pulp, soap and rubber, as an ingredient of dye liquor for textile dyeing; boiling out linen; ore flotation and metal refining. SHIPPING CONTAINERS
Steel drums
90 and 350 lbs. net
In unhairing hides, in desulfurizing viscose rayon; in preparation of dyestuffs and other organic chemicals such as thioamides, thiourea, thioglycolic acid, thio- and dithiobenzoic acids, sodium thiosulfate. SHIPPING CONTAINERS
Fe
5 ppm Max.
Flake: Lacquer-lined steel drums.. 90; 350 lbs. net
rapidly soluble in water, al-
Cu, N i , Cr, M n , Pb
1 p p m Max
L i q u i d : T a n k Cars
cohol and ether.
Water of crystallization .. .. 28 to 26%
HOOKER From
the
Salt
of
the
HOOKER ELECTROCHEMICAL COMPANY 7 FORTY-SEVENTH ST., NIAGARA FALLS, N. Y. NEW YORK, N. Y.
•
WILMINGTON, CALIF.
•
TACOMA, WASH.
Earth
CHEMICALS 9-407
SODIUM SULFIDE • SODIUM SULFHYDRATE • SODIUM TETRASULFIDE • CAUSTIC SODA • MURIATIC ACID • PARADICHLOROBENZENE • CHLORINE
