Subject: Ref: Douglas Smith's "CCL:morphology of zinc phospate on steel"

From: [email-masked] (CAS Customer Support, [email-masked])
Date: Thu, 1 Sep 94 09:41:57 EDT

Ref: Your Internet message "CCL:morphology of zinc phospate on steel"

Dear Mr. Smith:

As you probably already know, Chemical Abstracts (CA) covers literature on
Ferrous Metals and Alloys in CA Section 55 and should contain abstracts
related to your question.  I noticed that you have tried searching the CAS
files on STN and were unsuccessful so I posed your question to one of our
Material Science specialist.  He developed two search strategies for you to
try on STN.  The first strategy uses the CAS Registry and CAS CA files while
the second strategy relies just on the CAS CA file.  The first strategy has
the advantage of being more extensive and precise while the second strategy
would be less expensive.  His comments about the various steps are noted by
this symbol ">>".

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=============================================================================

		***** SEARCH STRATEGY 1 *****

=> fil reg

>>Zn phosphate coatings on steel may contain Fe, the principal component of
>>the substrate, hence the search begins with searching both salts in REG/CN.
>>Names are truncated to allow for various hydrates.

=> s zinc phosphate?/cn or iron zinc phosphate?/cn
	    18 ZINC PHOSPHATE?/CN
	     6 IRON ZINC PHOSPHATE?/CN
L2          24 ZINC PHOSPHATE?/CN OR IRON ZINC PHOSPHATE?/CN

>>Display mol. formula field to see false drops (compounds with organic
>>component)

=> d mf 1-24

L2   ANSWER 1 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   C6 H7 O3 P . x H2 O . x H O4 P . x H O3 P . x Zn

L2   ANSWER 2 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   C7 H9 N . x H2 O . x H O4 P . x H O3 P . x Zn

L2   ANSWER 3 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   C7 H5 N O4 . x H2 O . x H O4 P . x H O3 P . x Zn

L2   ANSWER 4 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   C9 H9 N O3 . x H2 O . x H O4 P . x H O3 P . x Zn

L2   ANSWER 5 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   C7 H8 O . x H2 O . x H O4 P . x H O3 P . x Zn

L2   ANSWER 6 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H O4 P . H O3 P . Zn

L2   ANSWER 7 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   Fe . O4 P . Zn

L2   ANSWER 8 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   Fe . O4 P . Zn

L2   ANSWER 9 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   Fe . O4 P . Zn

L2   ANSWER 10 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H3 O4 P . 5/4 Zn

L2   ANSWER 11 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H3 O4 P . x H2 O . Zn

L2   ANSWER 12 OF 24  REGISTRY  COPYRIGHT 1994 ACS
   MF   Fe . x H3 O4 P . x Zn

L2   ANSWER 13 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   Fe . 2 H3 O4 P . 2 Zn

L2   ANSWER 14 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   Fe . 2 H3 O4 P . 4 H2 O . 2 Zn

L2   ANSWER 15 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H3 O4 P . H2 O . 3/2 Zn

L2   ANSWER 16 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H3 O4 P . Zn

L2   ANSWER 17 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H3 O4 P . H2 O . 1/2 Zn

L2   ANSWER 18 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H3 O4 P . H2 O . Zn

L2   ANSWER 19 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H3 O4 P . 1/2 Zn

L2   ANSWER 20 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H O3 P . 1/2 Zn

L2   ANSWER 21 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   Unspecified

L2   ANSWER 22 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H3 O4 P . 3/2 Zn

L2   ANSWER 23 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H3 O4 P . 2 H2 O . 3/2 Zn

L2   ANSWER 24 OF 24  REGISTRY  COPYRIGHT 1994 ACS
MF   H4 O7 P2 . 2 Zn

>>select MF and continue search to get the minerals (they do not have chem.
>>names like "zinc phosphate" but have the same mol. formulas) that may be
>>used (incorrectly) to index phosphate coatings

=> select mf l2 6-20,22-24
E1 THROUGH E16 ASSIGNED

=> s e1-e16
	     3 FE.O4P.ZN/MF
	     3 FE.XH3O4P.XZN/MF
	     1 FE.2H3O4P.2ZN/MF
	     2 FE.2H3O4P.4H2O.2ZN/MF
	     1 "HO3P.1/2ZN"/MF
	     1 HO4P.HO3P.ZN/MF
	     1 H3O4P.H2O.ZN/MF
	     1 "H3O4P.H2O.1/2ZN"/MF
	     1 "H3O4P.H2O.3/2ZN"/MF
	     1 H3O4P.XH2O.ZN/MF
	     1 H3O4P.ZN/MF
	     1 "H3O4P.1/2ZN"/MF
	     3 "H3O4P.2H2O.3/2ZN"/MF
	     1 "H3O4P.3/2ZN"/MF
	     1 "H3O4P.5/4ZN"/MF
	     1 H4O7P2.2ZN/MF
L3          23 (FE.O4P.ZN/MF OR FE.XH3O4P.XZN/MF OR FE.2H3O4P.2ZN/MF OR F
	       E.2H3O4P.4H2O.2ZN/MF OR "HO3P.1/2ZN"/MF OR HO4P.HO3P.ZN/MF
		OR H3O4P.H2O.ZN/MF OR "H3O4P.H2O.1/2ZN"/MF OR "H3O4P.H2O.
	       3/2ZN"/MF OR H3O4P.XH2O.ZN/MF OR H3O4P.ZN/MF OR "H3O4P.1/2
	       ZN"/MF OR "H3O4P.2H2O.3/2ZN"/MF OR "H3O4P.3/2ZN"/MF OR "H3
	       O4P.5/4ZN"/MF OR H4O7P2.2ZN/MF)

>>get the reg. number for a single phosphate with unspecified structure (see
>>displayed answer set above)

=> select rn l2 21
E17 THROUGH E17 ASSIGNED

>>do the same for the rest of compounds (l3 set) and go to the file CA

=> select rn l3 1-23
E18 THROUGH E40 ASSIGNED

=> fil ca

=> s e17-e40
	     5 12741-07-0/BI
	     1 100356-35-2/BI
	     0 101764-37-8/BI
	     1 117314-57-5/BI
	     1 117314-58-6/BI
	     1 117314-59-7/BI
	   138 13566-15-9/BI
	   120 13598-37-3/BI
	     0 136938-52-8/BI
	    16 13814-03-4/BI
	    30 13986-21-5/BI
	    77 14332-60-6/BI
	    15 14485-28-0/BI
	   100 15491-18-6/BI
	    15 15551-65-2/BI
	    21 15662-48-3/BI
	    16 16842-47-0/BI
	    38 35743-71-6/BI
	     1 63692-76-2/BI
	     0 67183-34-0/BI
	    11 70629-49-1/BI
	   134 7446-26-6/BI
	   107 7543-51-3/BI
	  1162 7779-90-0/BI
L4        1799 (12741-07-0/BI OR 100356-35-2/BI OR 101764-37-8/BI OR 1173
	       14-57-5/BI OR 117314-58-6/BI OR 117314-59-7/BI OR 13566-15
	       -9/BI OR 13598-37-3/BI OR 136938-52-8/BI OR 13814-03-4/BI
	       OR 13986-21-5/BI OR 14332-60-6/BI OR 14485-28-0/BI OR 1549
	       1-18-6/BI OR 15551-65-2/BI OR 15662-48-3/BI OR 16842-47-0/
	       BI OR 35743-71-6/BI OR 63692-76-2/BI OR 67183-34-0/BI OR 7
	       0629-49-1/BI OR 7446-26-6/BI OR 7543-51-3/BI OR 7779-90-0/
	       BI)

>>search in section 55 restricts the substrate to steel; coating should be
>>searched as a controlled vocabulary term in the basic index to eliminate
>>false drops

=> s l4 and coat? and (morph? or struc?) and 55/sc,sx
	489112 COAT?
	191512 MORPH?
       1422542 STRUC?
	271162 55/SC
	 72890 55/SX
L5          45 L4 AND COAT? AND (MORPH? OR STRUC?) AND 55/SC,SX

=> d all

L5   ANSWER 1 OF 45  CA  COPYRIGHT 1994 ACS
AN   119:273469  CA
TI   Characterization of poly(acrylic acid)-modified zinc phosphate
     crystal conversion   ***coatings***
AU   Wragg, J. L.; Chamberlain, J. E.; Chann, L.; White, H. W.; Sugama,
     T.; Manalis, S.
CS   Dep. Phys. Astron., Univ. Missouri, Columbia, MO, 65211, USA
SO   J. Appl. Polym. Sci. (1993), 50(5), 917-28
     CODEN: JAPNAB; ISSN: 0021-8995
DT   Journal
LA   English
CC   42-10 (Coatings, Inks, and Related Products)
     Section cross-reference(s):   ***55***
OS   CJWILEY
AB   Raman spectroscopy and at. force microscopy were used to investigate
     the compn. and surface   ***structure***   of poly(acrylic
     acid)(I)-modified zinc phosphate crystal conversion   ***coatings***
     on steel.  Addn. of high-mol. wt. I to the phosphating bath can
     significantly improve both resistance to corrosion and topcoat
     adherence.  Raman spectra show the compns. of both unmodified and
     I-modified films to be zinc phosphate dihydrate,
     Zn3(PO4)2.cntdot.2H2O.  At. force microscopy (AFM) was used to
     measure the   ***morphologies***   of single cryst. surfaces.
     ***Morphologies***   of the unmodified and modified films obtained
     by AFM were quite similar, but subtle differences were apparent.
ST   polyacrylic acid zinc phosphate   ***coating***  ; conversion
     ***coating***   steel polyacrylic acid
IT     ***Coating***   materials
	(conversion, poly(acrylic acid)-modified zinc phosphate, on
	steel)
IT   ***7779-90-0***
	(conversion   ***coatings***  , poly(acrylic acid)-modified, on
	steel)
IT   9003-01-4, Poly(acrylic acid)
	(zinc phosphate conversion   ***coatings***   modified by, on
	steel)

=> d 45 all

L5   ANSWER 45 OF 45  CA  COPYRIGHT 1994 ACS
AN   74:56562  CA
TI   Phosphate- and zinc-  ***coated***   steel sheets
IN   Bijl, Cornelis L.; Vrijburg, Hans H.
PA   Koninklijke Nederlandsche Hoogevens en Staalfabrieken N. V.
SO   Ger. Offen., 17 pp.
     CODEN: GWXXBX
PI   DE 2029660  710107
PRAI NL  690618
DT   Patent
LA   German
IC   C23F
CC     ***55***   (Ferrous Metals and Alloys)
AB   Phosphate layers, with a uniform cryst.   ***structure***
     distribution on Zn-  ***coated***   steel sheets, were obtained by
     passing the sheets through pairs of rolls of 60-80.degree. Shore
     hardness acting at 20 kg/cm roll length and immersing the sheets
     .apprx.3 sec at .apprx.70.degree. in a phosphate soln.
ST   phosphatizing zinc   ***coated***   steel; zinc   ***coated***
     steel phosphatizing; steel zinc   ***coated***   phosphatizing;
     galvanized steel phosphatizing
IT   Galvanized iron
	(  ***coating***   of, with phosphates)
IT     ***Coating***   process
	(of galvanized steel, with phosphates)
IT   ***7543-51-3***
	(in phosphate   ***coatings***  , on galvanized steel)

============================================================================

		***** SEARCH STRATEGY 2 *****

=> s coat?/ct(l)phosph? and coat?/ct(l)(morph? or struct?) and (zn or zinc)
and 55/sc,sx not review/dt
	   195479 COAT?/CT
	813569 PHOSPH?
	  7186 COAT?/CT(L)PHOSPH?
	195479 COAT?/CT
	191512 MORPH?
       1421775 STRUCT?
	  2739 COAT?/CT(L)(MORPH? OR STRUCT?)
	222979 ZN
	240332 ZINC
	271162 55/SC
	 72890 55/SX
	978353 REVIEW/DT
L16         22 COAT?/CT(L)PHOSPH? AND COAT?/CT(L)(MORPH? OR STRUCT?) AND
	       (ZN OR ZINC) AND 55/SC,SX NOT REVIEW/DT

=> d all

L16  ANSWER 1 OF 22  CA  COPYRIGHT 1994 ACS
AN   119:76969  CA
TI   Study of the structure and composition of phosphate coatings on mild
     steel surfaces as a function of process parameters and design of the
     phosphating chemicals
AU   Roy, P. K.; Debnath, N. C.
CS   Appl. Res. Dev. Dep. (Paints), ICI (India) Ltd., West Bengal, India
SO   Surf. Coat. Int. (1993), 76(5), 214-16, 218-20
     CODEN: SCOIE6
DT   Journal
LA   English
CC     ***55-6***   (Ferrous Metals and Alloys)
     Section cross-reference(s): 42
AB   For   ***Zn***   phosphating chems. based on nitrate/nitrite type
     accelerators, both chem. concn. and nitrite concn. play an important
     role in controlling the stability of processing bath.  Optimum
     coating morphol. is obsd. for both studied baths (A - TA15-40 at pH
     2.6-2.8 and B - TA15-40 at pH 2.25-2.55) around toner levels of 2.5
     mL.  Coating wt. variation for bath A is almost insignificant, while
     for bath B only slight redn. is obsd. with the increase of toner
     level.
ST   mild steel phosphating bath compn
IT     ***Coating materials***
	(  ***zinc***     ***phosphate***  , on mild steel surfaces,
	effect of chems. on   ***structure***   and compn. of)
IT     ***Coating process***
	(  ***phosphating***  , of mild steel)
IT   11121-90-7, miscellaneous
	(phosphating of)

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