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use ExplA, fireworks: matches; printing and dyeing hods,chlithydrate,iodine,metallic salts/permanip da:
<br /> cotton and wool black:manuf aniline black and other dyes: chlorates.peroxides. LD,orally in rats: 10 mg/kg,Heyey
<br /> source of oxygen;in chemical analyses. Toxical. Appl. Pharmacal. 11,327(1967). , ;�-
<br /> n ERAP CAT: Formerly as antiseptic for skin, mucous Human Toxicity: Poisoning may occur by ingestion,ab
<br /> membranes. sorption through injured skin or inhalation of hydrogen
<br /> THERAP CAT 0113n: In dilute win as antiseptic mouthwash. cyanide.liberated by action of carbon dioxide or other acids.
<br /> Strong solos are corrosive to skin. For symptoms see Hy.
<br /> 7495. Potassium Chloride. Camcopot:Chloropotassurd; drogen Cyanide.
<br /> Chlorvescent; Enseal potassium chloride: Kaleorid; Kali- USE: Similar to sodium cyanide.
<br /> 'f tabs: Kaskay: Kayback; Kay-Cec-L; K-Contin; Klor-Con:
<br /> K-Tab: Peter-Kai; Pfiklor, PotavescenC Rekswan. Repone 7502. Potassium Diehromate(VD, Potassium bichta
<br /> K; Slow-K Tablets: Span-K. CIK; mol wt 74.55. Cl mate. CrIKr mol wt 294.21. Cr 35.3676, K 26.58%,0 i
<br /> 47.56%. K 52.441/6. KCI. Occurs in nature as the mineral 38.07%. K,Cr
<br /> In the U.S.A. it is usually prepared by
<br /> sylrine or sylvite. Industrial preens: Faith,Keyes&Clark's the reaction o potassium chloride on sodium dichromat¢
<br /> Industrial Chemicals,F.A. Lowenheim.M. K. Moran.Eds. Vetter in Kit
<br /> k-Olhmer Encyclopedia of Chemical Techmiagp
<br /> (Wiley-Interscience, New York, 4th ed., 1975) pp 666-673. sol. 3 (Interscience. New York, 1949) p 951; Hartford,
<br /> White crystals or eryst powder. d 1.98. mp 774. One Copson, ibid. sol. 5 (2nd ed., 1964) pp 484488. In Get.
<br /> gram disolves in 2.8 ml water, 1.8 ml boiling water, 14 ml many it is obtained from potassium chromate produced by
<br /> glycerol, about 250 ml alcohol: insol in ether, acetone. roasting the chrome ore with KOH. Ref. Muller, Glias.
<br /> Hydochloric acid,sodium or magnesium chlorides diminish mann in Ullmann's Encyklopiidie der Technischen Chemie
<br /> its soly in water. it of saturated aq soln at IS is 1.172. pH: at.5(Munich, 3rd ed.. 1954)is 580. j
<br /> about 7. Bright orange-red crystals. Not hygroscopic or deligttr4- 1
<br /> Human Toxicity: Large doses by mouth can cause G.I. cent (difference from sodium dichromate). Crystal habit.
<br /> irritation. purging, weakness and circulatory disturbances. prismatic. Crystal system: triclinic pinacoidal,transition to
<br /> USE: In photography; in buffer solns.electrode cells. monoclinic at 241.6. dF 2.676. Bulk density: 100 lbs/en It
<br /> WERAP CAT: Electrolyte replrnisher. mp 398. Dec at about 500'. Heat of fusion 29.8,lig;
<br /> Heat of soln -62.5,1/g. Specific heat 0.186 at 16--98•.
<br /> X`¢ 7496. Potassium Chromate(VD. Neutral potassium Soluble in water. A satd aq win contains at P: 4.3%.at 20:
<br /> chromate. CrK1O4:mol wt 194.20. Cr 26.78%, K 40.26%. 11.7%,at 40: 20.9%at 60': 31.376,at 80: 42.07,at 100:
<br /> O 32.967.. KtCrOs. 50.2%. Acid reaction: A 176 aq win has a pH of 4.04 and a
<br /> Lenton-yellow crystals;d 2.73; mp 975% Sol in 1.6 parts 107.win has a pH of 3.57.
<br /> cold.1.2 parts boiling water;insol in alcohol. The aq win is Human Toxicity: Intern. a corrosive poison. Industrial
<br /> alkaline to litmus or phenolphthalein. contact may result in ulceration of hands, destruction of
<br /> USE: Has a limited application in enamels,finishing(cath- mucous membranes and perforation of nasal septum. See
<br /> er,rustproofing of metals.being replaced by the sodium salt: Browning. Toxicity of Industrial Metals(Appleton-Ceatmi,
<br /> as reagent in analytical chemistry. Crofts. New York. 2nd ed.. 1969) pp 119-131. See ata
<br /> 7497. Potassium Citrate. C4HSKSOst mol wt 306.40. C Chromium. -•
<br /> 23.5276.H 1.6476.K 38.28%,O 36.557o. KIC4Hs07. It is at USE: In tanning leather.dyeing,painting,decorating por-
<br /> i 99% use. cclain, printing. Photolithography pigment-Prints, staining
<br /> legal
<br /> P wood, pyrotechnics,safety matches;for bleaching palm ail,
<br /> Monohydrate, white crystals.granules or powder. Loses wax, and sponges: waterproofing fabrics: as oxidizer in the
<br /> its water at IW. One gram dissolves in 0.65 ml water;very manuf of organic chemicals;in electric batteries:as depolar-
<br /> slowly in 2.5 ml glycerol; almost insist in alcohol. The aq iter for dry cells. As corrosion inhibitor in preference as
<br /> win is alkaline to litmus: pH about 8.5. sodium dichromate where tower soly is advantageous.
<br /> MERAP CAT: Alkalizer. Gastric antacid. THERAP CAT: Pharmaceutic aid(oxidizing agent).
<br /> MERAP CAT(Vin: Diuretic. THEME CAT 0161): CauatiC.
<br /> 7498. Potassium Citrate, Monobasic. Monopotassium 7503. Potassium Dicyanoaurste(D. Gold potassium CW
<br /> citrate. CHIKO; mol wt 230.21. C 31.317%. H 3.07%, K nide: potassium rocyanid<. CIAuKNI;not wt 288.13. C
<br /> 16.98%a Oa48.65. KHau
<br /> ICaH307. 8.34%,An 68.37%,K 13.577a N 9.729.. KAu(CI)I. Pmpd
<br /> While,tryst powder. Sol to water; the win is subject to by electrolysis of Au in KCN: Glassford,Napier,Phil MK
<br /> molding. 25,61 (1844).
<br /> USE: A 0.05 moW solution as standard for pH scale(pH m Dihydrate. tryst powder. One gradissolves in 7 Tat
<br /> at 2S 3.776): Staples. Bates. J. Res Not. Bur. Stand 73A, water,0.5 ml boiling water:slightly sol in alcohol;practical-
<br /> 37(1969). ly insol in ether.
<br /> 7499. Potassium Cobidtous Selenate. CoKIOsSeII mol USE: For electroplating.
<br /> wt 423.05. Co 13.93%. K 18.48%, O 30.26%. Se 37.33%. 7504. Potassium Ethyl Sulfate. Potassium sWfovimh.
<br /> Salta: eO4)I. ueepd la evaporating a soli of the component C H KO S;mol wt 164.22. C 14.63%,H 3.07%K 23.8196
<br /> salts: von Hauer. tact-red
<br /> nodi.kad. Wien tal 839 (1860). O 38.97°1.S 19.53%. KCIHSSO4.
<br /> Hex in air.tees garnet-red monoclinic crystals. d 2.514. White crystals. Freely sol to water or alcohol
<br /> Stable in air. '
<br /> 7500. Potassium Cyanate. CKNO; mol wt 81.11. C 7505. Potassium Ferricyanide. Tripotasstum hatdb
<br /> 14.817a K 48.207.. N 17.27%. O 19.72%. Inhibitor of the (cyano-C)fermte(3-): potassium heracyanoferraie0li;td
<br /> sickling of erythrocytes in vitro: Ceramf. Manning. Proc. prussiate of potash. C4FeKIN4:mol wt 329.25. C 21.11M
<br /> Nat Acad.Set USA 68, 1180(1971). See also Sodium Cya- Fe 16.96%, K 35.62%, N 25.53%. K.Fe(CN)r.
<br /> nate. Pharmacology: Cerami et at, J. Pharmacol. Exp. Ruby-red crystals. d 1.89. Slowly sol in 2.5 parts COW
<br /> Ther. 185,653(1973). water,in 1.3 pans boiling water; slightly sol in ala dee by
<br /> White,tryst powder. d 2.05. Sol in water.very slightly in acids. The aq win dec slowly on standing. protect
<br /> pX_ alcohol. LD.i.p. in mice: 320 mg/kg. t.
<br /> use: Chiefly for blueprints;in photography;also for sm1w
<br /> 7501. Potassium Cy'aaide. CKN; mol wt 65.11. C ing wood, dyeing wool, calico printing, as etching 09+1d
<br /> 18.449.. K 60.05%, N 21.51%. KCN. The article of cont- (Mercer's liquor), tempering iron and sial; in dectroPV'
<br /> merce contains about 957.KCN. ing:as a mild oxidizing agent in organic synthesis;in awl/a
<br /> While,deliquesc,granular Powder or fused pieces;odor of ical chemistry.
<br /> HCN. Violenttsonl On exposure to air it is gradually da
<br /> by COI and moisture. d 1.52:cap 634'. Sol in 2 pans cold. 7506. Potassium Ferrocyanide. Tetmpotasslum hnaH►
<br /> 1 Part boiling water, 2 pans glycerol, 100 parts alcohol. 25 (cyano-C)fermte(4-); potassium haacyanofermte(IB1 Yr4
<br /> parts methanol. The aq soln is strongly alkaline and rapidly low prussiate of potash. C4FeK4Ns: mol F 36).34 C
<br /> dec. pH of 0.1 N aq solo: 11.0. Keep sightly closed and pro- 19.56%, Fe 15.16% K 42.46%end syntheses:, N 22.82%. K4TheChewdoy
<br /> N)
<br /> fated from light. Incampat. Acids and acid syrups; alka- view of properties.chemists
<br /> Page 1100 Consult the crass index before using this section.
<br /> 1�r
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