Voglio sapere a riguardo di…

FEDERAL REGISTER, Saturday , September 16, 1939

3932

D&C Blue No. 8. Calcium salt of 4 4 - N - ethylbenzylamino -phenyl -5hydroxy - 4 - sulfo - 2-sulfoniumphenyl methylene -N - ethyl -N-benzyl-A2B-cyclohexadienimine.
3O y C/A

D&C Blue No. 9. 3,3-Dichloroindanthrene.
D&C Green No. 7. Monosodium salt Published by the Division of the Federal Register, The National Archives, pursuant to of 4- 4-N-ethyl-p-sulfobenzylamino the authority contained in th e Federal phenyl - o-chlorophenyl-methylene -1 -x Register Act, approved July 26, 1935 49 N - ethyl - N-p-sulfoniumbenzyl-A2,B-cyStat. L. 500, under regulations prescribed clohexadienimine.
by the Administrative Committee, with the D&C Orange No. 16. 4,5-Dibromo-2,7approval of the President.
The Administrative Committee consists of diiodo-3,6-fluorandiol.
the Archivist or Acting Archivist, an officer D&C Orange No. 17. l-2,4-Dinitroof the Department of Justice designated by the Attorney General, and the Public Printer phenylazo -2-naphthol.
Ext D&C Black No. 1. Disodium salt or Acting Public Printer.
The daily issue of the F e d er a l R e g is t e r of 8-anilino-5- 4-5-sulfo-l-naphthylwill be furnished by mail to subscribers, free azo - 1-naphthylazo-1-naphthalenesulof postage, for $1 per month or $10 per year;
single copies 10 cents each; payable in ad fonic acid.
vance. Remit by money order payable to Ext D&C Blue No. 3. Monosodium Superintendent of Documents, Government salt of 4-4-N-ethylbenzylaminoPrinting Office, Washington, D. C.
Correspondence concerning the publica phenyl-p-sulfo - o - sulfoniumphenyl tion of the F eder al R e g is t e r should be ad methylene - N-ethyl - N - benzyl-A2,6-cydressed to the Director, Division of the clohexadienimine.
Federal Register, The National . Archives, Ext D&C Blue No. 4. Disodium salt of Washington, D. C.
4,8 - diamino-l,5-dihydroxy-2,6-anthra quinone disulfonic acid.
Ext D&C Blue No. 5. 1,4-BisamylCONTENTSContined amino -anthraquinone.
Ext D&C Green No. 1. Ferric salt of Federal Communications Commis 6-sodiumsulfo -1 -sionitroso-1,2-naphtho sion:
Page quinone.
Southern Bell Telephone and Ext D&C Red No. 8. Monosodium salt Telegraph Co., hearing----- 3953 of 4 - 2-hydroxy - 1-naphthylazo - 1 Securities and Exchange Commis naphthalenesulfonic acid.
sion:
Ext D&C Red No. 9. Calcium salt of Registration revocation or sus2 - 1-naphthylazo - 1-naphthol - 5 - sul pensiop hearings:
acid.
Devine, Stewart M________
3954 fonic Ext D&C Red No. 10. Disodium salt Martin, James W--------------- 3954 of 2-4-sulfo-l-naphthylazo -1-naph thoic-sulfonic acid.
Ext D&C Red No. 11. Disodium salt posed under the following names are as of 8-acetamido-2-phenylazo-l-naphthol3.6- disulfonic acid.
follows:
Ext D&C Red No. 12. Barium salt of FD&C Red No. 32. l-Xylylazo-2- 1- 3-sulfo-2-tolylazo -2-naphthol.
naphthol.
Ext D&C Red No. 13. Disodium salt D&C Red No. 31. Calcium salt of 3- of l-p-phenylazophenylazo-2-naphthol-.
hydroxy-4-phenylazo-2-naphthoic acid. 6,8-disulfonic acid.
D&C Red No. 33. Disodium salt of Ext D&C Violet No. 1. Disodium salt 8-amino-2-phenylazo-l-naphthol-3, 6-diof l,5-biso-sulfo-p-toluino -anthraqui sulfonic acid.
none.
D&C Red No. 34. Calcium salt of Ext D&C Violet No. 2. Monosodium 4- l-sulfo-2-naphthylazo -3-hydroxy-2salt of 1-hydroxy-4- o-sulfo-p-toluino naphthoic acid.
anthraquinone.
D&C Red No. 35. l-o-Nitro-p-tolylExt D&C Yellow No. 5. alphaoazo -2-naphthol.
D&C Red No. 36. 1- o-Chloro-p-nitroNitro-p-tolylazo -acetoacetanilide.
Ext D&C Orange No. 1. alpha-ophenylazo -2-naphthol.
Nitro-p-anisylazo-o-acetoacetotoluide.
D&C Red No. 37. 3-Ethostearate of Ext D&C Orange No. 2. 4,5-Dinitro9 - o - carboxyphenyl - 6-diethylamino-33.6- fluorandiol.
ethylimino - 3-isoxanthene.
2. Coal-Tar ColorsChemical Analy D&C Violet No. 1. Monosodium salt of 4- 4- N-ethyl-p-sulfobenzylamino - sesPharmacological Tests. That the phenyl - 4-N-ethyl-p-sulfoniumbenzylproposed colors listed in Finding No. 1
amino - phenyl - methylene - N,N-diare coal-tar colors; th at said colors have methyl-A2,E-cyclohexadienimine.
been subjected to chemical study and D&C Yellow No. 11. 2-2-Quinolyl-l, analysis; and that the structurally basic organic parts of said colors have been 3- indandione.
D&C Blue No. 7. Monosodium salt of subjected to pharmacological examina 4 - 4-N-ethylbenzylamino -phenyll-5- tion and tests.
3. C e r t a i n impurities unavoidable.
hydroxy - 4 - sulfo - 2-sulfoniumphenyl methylene -N-ethyl - N -benzyl-A2,B-cyThat it is neither possible nor practi cable to make the proposed colors listed clohexadienimine.

FEDERAIREGISTER
jit f
in Finding No. 1 of a pure dye content of 100 percent, and impurities i. e., matter that is foreign to the pure dye, which are unavoidable in good manufacturing practice or which are required in order to impart to the color some necessary characteristic, form a part of the color to the extent th at such impurities are unavoidable in good manufacturing practice or are required to impart to the color some necessary characteristic.
4. Varying specifications necessary.
That specifications limiting the mini mum amount of pure dye and the maxi mum amounts of impurities which may be considered to form a part of the color should . be fixed so as to specify colors of the greatest possible purity practicable in good manufacturing prac tice; and that, as among the proposed colors listed in Finding No. 1, the neces sary specifications vary, both as to the percentage and as to the nature of the specifications, depending upon the color and the process by which it is made.
5. Pure dyeMethods for determin ingPracticable limits. That in the case of the proposed colors listed in Finding No. 1, the limits for pure dye which are practicable in good manufac turing practice and the methods of de termining the pure dye percentage are as follows:
FD&C Red No. 32. Not less than 97.0
percent, as determined by titration with titanium trichloride.
D&C Red No. 31. Not less than 90.0
percent, as determined by titration with titanium trichloride.
D&C Red No. 33. Not less than 82.0
percent, as determined by titration with titanium trichloride.
D&C Red No. 34. Not less than 85.0
percent, as determined by titration with titanium trichloride.
D&C Red No. 35. Not less than D5.0
percent, as determined by titration with titanium trichloride.
D&C Red No. 36. Not less than 90.0
percent, as determined by titration with titanium trichloride.
D&C Red No. 37. Not less_ than 50.0
percent, as determined by titration with titanium trichloride.
D&C Violet No. 1. Not less than 80.0
percent, as determined by titration with titanium trichloride.
D&C Yellow No. 11. Not less than 96.0 percent, as calculated from organ ically combined nitrogen.
D&C Blue No. 7. Not less than 80.0
percent, as determined by titration with titanium trichloride.
D&C Blue No. 8. Not less than 80.0
percent, as determined by titration with titanium trichloride.
D&C Blue No. 9. Not less than 97.0
percent, as calculated from organically combined nitrogen.
D&C Green No. 7 Not less than 80.0
percent, as determined by titration with titanium trichloride.
D&C Orange No. 16. Not less than 90.0 percent, as determined gravimetrically.