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VICTOR PHOSPHORUS CHLORIDES . . *

IOEAL CHEMICALS FOR YOU

This versatile group of Victor phosphorus chlo­rides has found a good measure of application. New uses are now being considered by industry and the future holds promise of broad applica­tion. You may get an idea from the information on the following page that can benefit your company. These chemicals are offered for your evaluation. Experimental samples are available. Mail the coupon.

NEW CHEMICALS . . . NEW POSSIBILITIES FOR Y O U

Users of the newer Victor phosphates, phos­phorus compounds, formates, and oxalates will teil you that it really pays to keep an eye on Victor research. Many important problems of industry have been solved by Victor's technical and research staffs through development of new chemicals and new uses. In some instances, plus benefits like the addition of new and im­pelling sales features for their products, lower operating and labor costs, more production, greater efficiency were gained.

Right now, there are several new Victor developments that offer promise. The phos­phorus chlorides described here may solve a product or process problem for you. Their unique properties definitely merit your con­sideration as do those of other new Victor chemicals.

RESEARCH . . . ANOTHER DEPENDABLE VICTOR FACILITY

For 56 years, Victor has specialized in the development and manufacture of phosphates, phosphorus compounds, formates, oxalates. Victor recognizes the importance and contribu­tions of an expanding and continuing research program. That ' s why you can depend on Victor research for useful developments tha t can aid you and make your work easier and your com­pany's process and products better. I t will pay you to keep an eye on Victor Research.

Look, also, to Victor for dependable service, for dependable chemical manufacturing stand­ards, for dependable product quality and purity. Victor's facilities and service t o industry are unmatched in this field. When selecting a source of supply, be guided by this fact: Victor is recog­nized as . . . the dependable name in chemicals.

HELP FOR PRODUCT PROBLEMS

If you have a product or process problem, bring it to Victor. Our technical and research people and laboratories are geared to aid industry. Your inquiry is invited.

NEW FOLDER ON VICTOR RESEARCH CHEMICALS AVAILABLE

MAIL THB COUPON FOR YOUR COPY

A new, handy folder which describes 45 Victor research chemicals has jus t been completed. You will find it to your advantage to be one of the first to receive a copy. One or more of these interesting chemicals may offer possibilities to you. Mail the coupon today for your copy.

VICTOR CHEMICAL W O R K S

141 W . Jackson Blvd.. Chicago 4, III .

Please send wi thout cost o r o b l i g a t i o n : I I Sample of Phosphorus Trichloride

I I Sample of Phosphorus Oxychloride

I I Sample of Phosphorus Thiochloride

I I Sample of Benzene Phosphorus

Dichlaride

Γ Ί Sample of Benzene Phosphorus Oxydichloride

I 1 Sample of Benzene Phosphorus Thiodichloride

I I Sample of Benzene Phosphinic Acid

Γ Ί Sample of Benzene Phosphonic Acid

Q New Folder 45 Victor Research Chemicals

C O M P A N Y -

C I T Y .

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4326 C H E M I C A L A N D E N G I N E E R I N G N E W S

on VICTOR RISEARSSB

VICTOR F>HOSPm^RtiS CHLORIDES

PHOSPHORUS TRICHLORIDE PCI3 P"hosphorus trichloride is a clear, colorless liquid. I t decomposes in water to give phosphorous and hydro­chloric acids, and is chemically very reactive. Typical qual i ty: Boiling range 75.5°C.-77.0°C. at 760 mm. Uses: Chlorinating agent in organic synthesis; inter­mediate in production of phosphites, organic chem­icals. Available in tank cars and returnable drums.

PHOSPHORUS 0XYCHL0RIDE (Phosphoric Trichloride)

POCI3

Phosphorus oxychloride is a water-white to slightly yellow liquid. I t decomposes in water to yield phos­phoric and. hydrochloric acids, and is chemically very reactive. Typical quali ty: Boiling range 106°C-lO8 0C. at 760mm. Uses: Intermediate in production o f organic chemicals; as a chlorinating agent, and catalyst . Available in t ank cars and returnable drums.

PHOSPHORUS THI0CHL0RIDE (Phosphonothioic Trichloride)

PSCI3

IPhosphorus thiochloride is a faint yellow to colorless liquid with a distillation range of 120-125°C. Typical analysis: 18.5% phosphorus and 18.6% sulfur. Uses: Intermediate in chemical manufacture. Typical end products are oil additives, ore flotation agents, and insecticides containing both phosphorus and sulfur.

BENZENE PHOSPHORUS DICHLORIDE (Phenylphosphonous Dichloride)

C6H5PCI2

IVlol. Wt. 179. Specific gravity 1.315 a t 25°C. Boiling point 224.6°C. at atmospheric pressure. A colorless liquid which fumes in air. It is a highly reactive acid chloride which hydrolyzes in water and reacts with alcohols, phenols, amines, and aldehydes. Adds oxygen, sulfur and halogens. Suggested uses: As an intermediate in organic synthesis.

BENZENE PHOSPHORUS OXYDICHLORIDE (Phenylphosphonic Dichloride)

Ο II

C6H5PCI2

Mol. Wt . 195. Specific gravity 1.375 a t 20°C. Boiling point 258°C. (atm.). Colorless liquid of faint fruity odor. Soluble in benzene, chloroform, carbon tetra­chloride. I t is a reactive acid chloride. Suggested uses are: As a n intermediate for synthesis of plasticizers and oil additives, and in general organic synthesis.

BENZENE PHOSPHORUS THIODICHLORIDE (Phenylphosphonothioic Dichloride)

S II

C6H5PCI2

Mol. Wt. 211. Specific gravity 1.376 at 13°C. Boilirmg point 205°C. a t 130 mm. A colorless liquid ^whicrh fumes slightly in air. I t is a reactive acid ch_lorid.e which hydrolyzes very slowly in water but jreac^s with alcohols, phenols, and amines Suggested! uses are: As an intermediate in organic synthesis a_nd a s an additive in extreme pressure lubricants.

BENZENE PHOSPHINIC ACID (Phenylphosphinic Acid)

H I

C6H5P-OH

Mol. Wt. 142. Specific gravity 1.376 (29°C). M-eltirmg p^int 82-84°C. Strong monobasic acid; coEorless crystals. Acid strength: pK =1.47. Soluble in \^vatecr, alcohol, and acetone. Slightly soluble in ether, insol­uble in benzene, hexane, and carbon tet. Stalfcle i.n air. Decomposes a t 200°C. with formation of phi.eny-1-phosphine. Oxidizes to the phosphonic acid with ordinary oxidizing agents such as hydrogens, per­oxide. Water solubility: 7.7 gms/100 gms water a t 25.5°C. Suggested uses: General anti-oxidarat; fco improve film properties of cured polysiloxane r-esins; intermediate for forming metallic salts; accelerator for organic peroxide catalysts.

BENZENE PHOSPHONIC ACID (Phenylphosphonic Acid)

Ο II

C6H5P-OH I

OH Mol. Wt. 158. Specific gravity 1.475 (4°C) . Moltintg point 158°C. Strong dibasic acid; colorless crystals. Acid strength: pKi = 1.85; pK2=7.2. Soluble in watezr, alcohol, ether, and acetone. Insoluble in benzene, hexane, and carbon tet . Stable in air. Decomposes a t 275°C. with formation of benzene. Water solufc>ilit>7: 40.3 gms/100 gms water a t 25.5°C. Suggested uses: Solid acid; intermediate for forming metallic salfcs used as anti-fouling agents for paints; catalyst for urea formaldehyde and related resins.

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