X-ray Absorption Spectroscopy of Cuprous-Thiolate Clusters in ...
IS 1682 (1973): Specification for Cuprous Oxide, Technical ...A-2.5 Potassium Iodide Solution’- 30...
Transcript of IS 1682 (1973): Specification for Cuprous Oxide, Technical ...A-2.5 Potassium Iodide Solution’- 30...
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IS 1682 (1973): Specification for Cuprous Oxide, Technical(Fungicidal Grade) [FAD 1: Pesticides and PesticidesResidue Analysis]
IS : 1682 - 1973
Indian Standard
SPECIFICATION FOR CUPROUS OXIDE, TECHNICAL
(FUNGICIDAL GRADE)
( First Revision )
Pest Control Sectional Committee, AFCDC 6
Chairman
Da S. N. BANERJEE
Members
SHRI M. L. ADVANI
Representing
Directorate of Plant Protection, Quarantine & Storage ( Ministry of Agriculture ), Faridabad
Tata Fison Industries Limited, Bombay $HRI H. R. RAO (Alternate)
DR P. N. AUARWAL Ministry of Defence ( R & D ) SHRI SHUMSHER S~NQH ( Alternate )
DR H. L. BAYI Central Forensic Science Laboratory, Central Bureau of Investigation, New Delhi
DR N. K. BASU The ~l~~~tt~ Chemical Corporation of India Ltd, a
DR T. GUEA ( Alternate) SRRI R. C. BRATTACHARYA Directorate General of Technical Development,
New Delhi DR K. D. SHARMA ( Alternate)
MAJ-GEN M. S. BOPARAI Directorate General of Armed Forces Medical Services ( Ministry of Defence), New Delhi
SHRI H. S. CHACHORIA Deptrjment of Agriculture, Government of -1 __~ n Manarasntra, roona
SHRI P. CHAWLA National Organic Chemical Industries Limited, Bombay
SHRL BHUPINDER SIN~H ( Alternate I ) SHRI H. J. DADACHANJI ( Alfernate II )
DR M. S. DHATT National Malaria Eradication Programme, Delhi DR C. L. DHAWAN Union Carbide India Ltd, New Delhi
SHRI R. K. DUTTA ( Alternafe j
( Continued on page 2 )
, I @ Copyright 1973
INDIAN STANDARDS INSTITUTION
I This publication is protected under the Indian Copyright Act ( XIV of 1957 ) and reproduction in whole or in part by any means except with written permission of the
I publisher shall be deemed to be an infringement of copyright under the said Aet.
-.
IS : 1682 - 1973
( Continued from page 1)
Members Representing
DIRECTOR or AURICULTTJRE Department of Agriculture, Government of Uttar Pradesh, Lucknow
DEPUTY DIRECTOR ( PLANT PROTECTION ) ( Alternate )
DRWS CONTROLLER Indian Pharmacopoeia Committee ( Ministry of Health & Family Planning ), New Delhi
SERI M. RAVIKANT ( Alternate) SERI G. D. GOKHALE Bombay Chemicals Private Ltd, Bombay
SHRI V. V. KETKAR ( Alternate ) SHRI D. Cl. JAIN Food Corporation of India, New Delhi
SHRI HARJINDER SINQH ( Alternate ) SHRI T. GEORQE JOHN Hindustan Insecticides Ltd, New Delhi
DR S. N. NAQ ( Alternate ) DR G. S. KALKAT Department of Agriculture, Government of Punjab,
Chandigarh SHRI MANUAL SIN~H KAPOOR ( Alternate )
Da LALLAN RAI Cyanamid India Limited, Bombay DR A. L. MOOKERJEE ( Alternate )
SHRI S. K. MAJUMDAR Central Food Technological Research Institute ( CSIR ), Mysore
SHRI M. MUTFLU ( Alternate) SHRI K. S. MEETA
SHRI S. CHATTERJI ( Alternate) DR P. R. MEHTA l3.7 E v hllTamT.raa Ym .J. AX. I*I”ILY*“.3Y
&RI D. N. NAKRATE DR S. Y. PANDIT ( Alternate )
SHRI S. L. PATEL
Bharat Pulverising Mills Private Ltd, Bombay
Pesticides Association of India, New Delhi Anr;r~~ltm.rnl f?hemical. TX.,;.;nn Tndinn Aa&ml. “blat......“- -.._ . . . . _...” -....,‘.,.., *.._.-.. ‘.b”..“-
tural Research Institute ( ICAR ), New Delhi Bayer ( India ) Ltd, Bombay
American Spring & Pressing Works Private Ltd, Bombay
SHRI L. M. PATEL ( Alternate ) PLANT PROTECTION OFFWER
DR S. PRADHAN
DR RATTAN LAL ( Alternate )
Department of Agriculture, Government of Mysore, Bangalore
Entomology Division, Indian Agricultural Research Institute ( ICAR ), New Delhi
DR VINOD R. SHAH SI~RI L. R. SHARMA
Pest Control ( India ) Pvt Ltd, Bombay Shaw Wallace & Company Limited, Calcutta .
SHRI N. R. JAYASUNDAR ( Alternate) DR K. S. SIN~H Indian Veterinary Research Institute ( ICAR ),
Izatnagar SITRI S. C. SRIVASTAVA ( Alternate )
&RI L. R. SUD Ministry of Defence ( DGI ) DR B. L. WATTAL National Institute of Communicable Diseases, Delhi DR HARI BHAQWAN, Director General, IS1 ( Ex-oflcio Member )
Director ( Agri & Food)
Sccretaa
SHRI E. N. SUNDAR Deputy Director ( Agri & Food ), IS1
( Continued on page 11 )
2
1s : 1682 - 1973
Indian Standard SPECIFICATION FOR
CUPROUS OXIDE, TECHNICAL (FUNGICIDAL GRADE)
(First Revision)
0. FOREWORD
0.1 This Indian Standard ( First Revision ). was adopted by the Indian Standards Institution on 18 January 1973, after the draft finalized by the Pest Control Sectional Committee had been approved by the Agricultural and Food Products Division Council and the Chemical Division Council.
0.2 This standard was first published in 1960. In order to bring the standard up-to-date, it has been decided to issue the first revision of the standard after taking into consideration the views of the industry and consumers. This revised version does not include limits for arsenic and lead, as they were considered not necessary.
0.3 Cuprous oxide, technical, is extensively used for agricultural and horticultural purposes in fungicidal formulations.
0.4 This standard is one of a series of Indian Standards on pesticides and their formulations. Other standards published so far in the series are given on pages 13 and 14.
0.5 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accord- ance with IS : 2-1960”. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.
1. SCOPE 1.1 This standard prescribes the requirements and the methods of test for cuprous oxide, technical, used in the formulation of fungicides for agricul- tural and horticultural purposes.
*Rules for rounding off numerical values ( revised).
3
IS : 1682 - 1973
2. REQUIREMENTS
2.1 Description- The material shall be essentially cuprous oxide. It shall be in the form of a dry powder, or in such a form that it is possible
* to easily powder it by crushing under a palette knife, without a grinding action. It shall have a yellow-orange to orange-red colour and shall be free from adulterants and foreign matter.
2.2 The material shall comply with the requirements given in Table 1.
TABLE 1 REQUIREMENTS FOR CUPROUS OXIDE, TECHNICAL ( FUNGICIDAL GRADE )
( Clauses 2.2 and 5. I )
i$. CEARACTERISTW REQUIREMENT METEOD OF TEST
~_~--_~---_-~
Ref to ReftoClof Appendix IS : 6940*
(1) (2) (3) (4) (5)
i) Moisture content, percent by mass, 1.0 3.1 Max
ii) Total copper, percent by mass, Min
80.0 A
iii) Total soluble alkali as ( NasCO,) 0.50 B -
percent by mass, Max
iv) Total soluble chloride ( as NaCl ), 0.50 c -
percent by mass, Max
‘Methods of test for pesticides and their formulations ( under Preparation )_
3. PACKING AND MARKING
3.1 Packing - The material shall be packed in polyethylene-lined hessian ba 0.062 mm 9
s or wooden boxes with a polyethylene liner of not less than 250 gauge ) thickness.
3.2 Marking - The following information shall be marked legibly and indelibly on each container:
a) Name of the material;
b) *Total copper content; c) Name of the manufacturer;
d) Batch number; e) Net mass of contents; and
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IS : 1682 - 1973
f) The minimum cautionary notice, worded as under:
‘KEEP FAR AWAY FROM FOODSTUFFS, ANIMAL FEEDS AND SEEDS AND THEIR EMPTY CONTAINERS. DO NOT USE THIS CONTAINER FOR ANY OTHER ALTERNA- TIVE PURPOSE EXCEPT FOR STORAGE OF PESTICIDES’.
3.2.1 When hessian bags are used for packing the material, the pictorial marking for ’ USE NO HOOKS ’ and ‘ DO NOT PUNCTURE ’ as contained in, IS : 1286-1967* shall be stencilled on,the bags.
3.2.2 The containers may also be marked with the IS1 Certification Mark.
NOTE -The use of the IS1 Certification Mark is governed by the provisions of the Indian Standards Institution (Certification Marks) Act and the Rules and Regula- tions made thereunder. The IS1 Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a well-defined system of inspection, testing and quality control which is devised and supervised by IS1 and operated by the producer. IS1 marked products are also continuously checked by IS1 for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the IS1 Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution.
4. SAMPLING
4.1 The method of drawing the representative samples of the material and criteria for conformity shall be as prescribed in Indian Standard Methods of sampling for pesticides and their formulations ( under @r+~ration ).
5. TESTS
5.1 Tests shall be carried out as prescribed in the appropriate appendices given in co1 4 of Table 1.
5.2 Quality of Reagents - Unless specified otherwise, pure chemicals and distilled water ( see IS : 1070-19607 ) shall be employed in tests.
NOTE - 6 Pure chemicals ’ shall mean chemicals that do not contain impurities which affect the results of analysis.
*Pictorial markings for handling of goods in general (Jirst revision ). tspecification for water,, distilled quality ( revised).
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1s : 1682 - 1873
APPENDIX A
[ Tuble 1, Item ( ii ) ]
DETERMINATION OF TOTAL COPPER
A-l. PRINCIPLE OF THE METHOD
A-l.1 Copper is determined by titration of the iodine liberated on addi- tion of potassium iodide to the weakly acidic solution. Difficulties with absorption of iodine on the cuprous iodide precipitate are avoided by the addition of potassium or ammonium thiocyanate.
A-2. REAGENTS
A-2.1 Concentrated Nitric Acid - sp gr 1.42 ( conforming to IS : 264- 1968*).
A-2.2 Urea
A-2.3 Sodium Carbonate - anhydrous (conforming to IS : 296-1965t).
A-2.4 Dilute Acetic Acid - 10 percent (v/v).
A-2.5 Potassium Iodide Solution’- 30 percent ( m/v).
A-2.6 Standard Sodium Thiosulphate Selntion - O-1 N, standardized against pure copper or against 0.1 N standard potassium dichromate solution ( see A-5 ).
A-2.7 Starch Indicator Solution - One percent ( m/v), freshly prepared.
A-2.8 Potassium or Ammollium Thiocyanate
A-3. PROCEDURE
A-3.1 Weigh accurately about 0.4 g of the material into a 250-ml Erlenmeyer flask. Add 1 to 2 ml of concentrated nitric acid and about 20 ml of water, and allow the material to dissolve by shaking. Boil the contents for’3 to 5 minutes, remove the flask from the flame, add 1 g of urea and boil again for about 5 minutes. Cool and add sodium carbonate in small quantities until a faint permanent precipitate or blue colour appears. Add dilute acetic acid dropwise until the blue colour ( or the precipitate ) disappears. Add 2 to 3 ml of potassium iodide solution and
*Specification for nitric acid ( revised). $Specification for sodium carbonate, anhydrous (revised).
6
. titrate the brown solution with the standard sodium thiosdphate solution to a pale-straw colour. Add about 2 ml of starch indicator solution and about 1.5 to 2’5 g of potassium or ammonium thiocyanate, and continue titration until the blue colour is just discharged.
A-4. CALCULATION
A-4.2 Total copper content, percent = O-635 7 VF by mass M[
where v = volume in ml of the standard sodium thiosulphate solution
required for the test with the material ( due A-3.1 ),
F = factor of the standard sodiup thiosulphate solution (see A-5.1.2.1 and A-5.2.3.1), and
M = mass in g of the material taken for the test ( Jee A-3.1 ).
A-5. STANDARDIZATION OF SODIUM TIIIdSULPHATE SOLUTION
A-5.0 General - For standardization of sodium thiosulphate solution, two methods, namely titration against pure copper of not less than 99.9 percent purity and against standard potassium dichromate solution, have been specified. Experience has shown that the standardization against pure copper gives accurate results but due to difficulty of availability of pure copper, the alternate method has also been specified. Hence, either of these two methods may be used for the standardization of sodium thiosulphate solution, but the method employed should be stated while expressing the results of a test.
A-5.1 Standardization Against Pure Copper of Not Less than 999 Percent Purity
A-5.1.1 Weigh accurately 0.2 g of pure copper in a 500-ml Erlenmeyer flask. Dissolve the copper by adding 5 ml of concentrated nitric acid and, after 1 minute, add 5 ml of water. Follow the procedure as described in A-3.1. .
A-5.1.2 Calculation
A-5.1.2.1 Factor F of 0.1 N sodium thiosulphate solution = o_~3~~v
where M = mass in g of the pure copper taken for the test, and
v = volume in ml of the standard sodium thiosulphate solution required for the test with the material.
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IS : 1682 - 1973
A-5.2 Standardiiaiion Against Standard Potassium Dichromate Solution
A-5.2.1 Reagents A-5.2.1.1 Standard fiotassium dichromate solution - 0.1 N.
~-5.2.1.2 Concentrated hydrochloric acid - conforming to IS : 265-1962*.
A-5.2.1.3 Potassium iodide
A-5.2.1.4 Starch indicator solution - one percent ( m/v), freshly prepared.
A-5.2.2 Calculation
A-5.2.2.1 Pipette out accurately 25 ml of the standard potassium dichromate solution into a 600-ml Erlenmeyer flask. Add to this about 125 ml of water, 10 ml of concentrated hydrochloric acid and 4 to 5 g of potassium iodide. Stopper the Erlenmeyer flask and keep it in dark for about 15 minutes to complete the reaction. After 15’minutes, titrate this mixture against the standard sodium thiosulphate solution using about 2 ml of starch indicator solution towards the end.
A-5.2.3 Calculation
VN A-5.2.3.1 Factor F of 0.1 N sodium thiosulphate solution = v
where
V = volume in ml of the standard potassium dichromate solution taken for the test ( which in this case is equal to 25 ml ),
Jv = normality of the standard potassium dichromate solution, and
v = volume in ml of the 0’1 N sodium thiosulphate solution required for titration of the volume of the standard potassium dichromate solution taken for the test.
APPENDIX B a
[ Tuble 1, -Item ( iii ) ] .
DETERMINATION OF TOTAL SOLUBLE ALKALI
B-I. REAGENTS
B-l.1 Standard Sulphuric Acid - 0.02 N.
B-1.2 Methyl Red Indicator - aqueous, 0.1 percent (m/v).
*Specification for hydrochloric acid (revised ).
8
IS : 1682 - 1973
Bd2. PROCEPURE
B-2.1 Weigh accurately about 20 g of the material into a 250-ml conical Aask. Add about 100 ml of water, mix and warm slightly. Cool and filter into another conical flask. Wash the material several times with water and collect the washings in the same conical flask as the filtrate. Titrate these total washings ( filtrate) with the standard sulphuric acid using methyl red as the indicator.
NOTE - Preserve this solution for the determination of total soluble chloride (see C-2.1 ).
B-2.2 Carry out a blank determination on 100 ml of water plus the quan- tity of water approximately used for washings using methyl red as the indicator.
B-3. CALCULATION
B-3.1 Total soluble aklali ( as Na&Os), percent = 5.3 ( I’ - v) N by mass M
where
V = volume in ml of the standard sulphuric acid required for the test ( see B-2.1 ),
v = voIume in ml of the standard sulphuric acid required for the blank determination ( see B-2.2),
N= normality of the standard sulphuric acid, and M = mass in g of the material taken for the test (see B-2.1 ) .
APPENDIX C
[ T&de 1, Item ( iv ) ]
DETERMINATION OF TOTAL SOLUBLE CHLORIDE
C-l. REAGENTS
C-l.1 Calcium Carbonate
C-1.2 Potassium Chromate Indicator Solution - 5 percent ( m/v ), aqueous.
C-l.3 Standard Silver Nitrate Solution - 0.1 N.
9
I&:1682-1973
C-2. PROCEDURE
C-2.1 To the neutralized solution contained in the conical flask ( see B-2.1 ), add a small quantity of calcium carbonate and mix. Add a few drops of potassium chromate indicator solution and titrate with the standard silver nitrate solution.
C-2.2 Carry out a blank determination using the same volume of water as the solution with potassium chromate as the indicator.
C-3. CALCULATION
C-3.1 Total soluble chloride ( as NaCl), L 5.85 ( I’ - v) fl percent by mass M
where
V= volume in ml of the standard silver nitrate solution required for the test ( see C-2.1),
v = volume in ml of the standard silver nitrate required for the blank determination ( see C-2.2 ),
N = normality of the standard silver nitrate solution, and M= mass in g of the material taken for the test
( see C-2.1 ).
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IS : 1682 - 1973
( Conhued from page 2 )
Pesticides Subcommittee, AFCDC 6 : 1
Convener
DR P. R. MEETA
Members
SHRI M. L. ADVANI SHRI H. R. RAO (Alternate)
DR N. S. A~RAWAL
Represenling
Pesticides Association of India, New Delhi
Tata Fison Industries Limited, Bombay
Ministry of Agriculture ( Department of Agriculture )
SHRI 0. P. GAE~Q ( Alternate) SHRI E. A. ALMEIDA Ciba of India Ltd, Bombay
DR T. PARTHASARATHI ( Alternate ) ASSISTANT A Q R I o u L T TJ R A L Pesticides Testing Laboratory, Coimbatore
CHEMIST DR H. L. BAMI Central Forensic Science Laboratory, Central
Bureau of Investigation, New Delhi DR N. K. BASU The Alkali & Chemical Corporation of India
Ltd. Calcutta DR A. P. DUTTA ( Alternate)
SHRI R. C. BHATTAOHARYA Directorate General of Technical Development, New Delhi
DR K. D. SHARMA (Alternate ) SHRI P. CHAWLA National Organic Chemical Industries Limited,
Bombay SHRI BHUPINDER SIN~H (Alternate I) SHRI H. T. DADACHANJI f Alternate II )
Punjab Agricultural University, Ludhiana National Malaria Eradication Programme, Delhi
DR S. L. C&PRA \
DR M. S. DHATT SHRI G. D. GOKHALE
SHRI V. V. KETKAB ( Alternate ) SHRI T. GEORQE JOHN
DR S. N. NAG ( Altcrnale) DR K. B. L. MATHUR SHRI K. S. MEETA
SERI S. CHATTERJI ( Alternate ) SHRI L. S.MIRLE DR S.K.MUKERJEE
Bombay Chemicals Private Ltd, Bombay
Hindustan Insecticides Ltd, New Delhi
Chemistry Department, University of Delhi, Delhi Bharat Pulverising Mills Private Ltd, Bombay
Agromore Limited, Bangalore Agricultural Chemicals Division, Jndian Agricul-
tural Research Institute ( ICAR ), New Delhi DR R. S. DEWAN (Alternate)
DR N.B.PATEL DR N. V. RAO I Alternate 1
SHRI S. L. PEBTI ' ' PLANT PROTECTION ADVISER TO THE GOVERNMENTOB~NDIA SHRIV.LAKBHMINARAYANA ( Alternate )
SHRIV.S.RAYANATHAN
Tata Chemicals Limited, Mithapur
Ministry of Defence ( R & D) Directorate of Plant Protection, Quarantine &
Storage ( Ministry of Agriculture ). Faridabad
Central Revenues Control Laboratory ( Ministry of Finance ), New Delhi
SHRI P. P. MATHEW (Alternate )
( Continued on page 12)
IS:1682 -1973
( Continued from page 11 )
Members
DR R. ROEHA SHRI G. BALASUBRAMANIAN
Representing
Hoechst Pharmaceuticals Limited, Bombay
( Alternate ) SHRI S. S. SHAH New Chemi-Mineral Mills Private Ltd, Bombay
SHRI N. A. SHAHBHAQ ( Alternate ) DR V~NOD R. SEAH
DR H. N. MOHAN RAO Pest Control ( Iqdia ) Pvt Ltd, Bombay
(Alternate ) SHRI R. D. SEROvr Excel Industries Limited, Bombay
SHRI K. K. CEHAYA ( Alternate) SHRI P. P. SINQHAL Pesticides India, Udaipur
SHRI MOIXOMED YUSUB ( Alternate ) SHRI L. R. SIJD DR B. L. WATTAL
Ministry of Defence ( DGI ) NatipconLt Institute of Communicable Diseases,
SHRI V. N. BHATNA~AR ( Alternate )
12
fNbfAN STANDARDS
ON
PESTICIDES ( TECHNICAL GRADE )
IS :
560-1969
563-1973
634-1965
882-1956
1051-1957
10521962
1055-1957
1251-1973
1306-1958
1309-1958
1311-1966
1312-1967
1486.1969
1488-1969
1827-1961
1832-1973
1833-1961
2125-1962
2126-1973
2127-1962
2128.1973
2353-1963
2354-1963
2355-1963
2570-1963
2863-1964
3898-1966
3900-1966
3902-1966
3904-1966
4320-1967
4321-1967
4344-1967
4345-1967
4451-1967
4929-1968
BHC, technical and refined (second revision )
DDT, technical ( second revision )
Ethylene dichloride-carbon tetrachloride mixture ( 3 : 1 v/v ) ( revisrd ) Gamma-BHC ( lindane )
Pyrethrum extracts
Dieldrin, technical ( revised )
Nicotine sulphate solution
Zinc phosphide, technical (first revision )
Aldrin, technical
Endrin, technical
Ethylene dibromide (jr& revision )
Methyl bromide (jrst revision )
Copper oxychloride, technical (first revision )
2, 4-D sodium, technical (first revision )
Liquid amine salts of 2, 4-D
Malathion, technical (Jirst revision )
Diazinon, technical
Phenyl mercury salicylate, technical
Phenyl mercury acetate, technical (J;rsr revision )
Stabilized methoxy ethyl mercury chloride concentrate
Parathion ethyl, technical (Jirst revision )
Phenyl mercury chloride, technical
Ethyl mercury chloride, technical
Stabilized ethoxy ethyl mercury chloride concentrate
Methyl parathion, technical
Chlordane, technical
Zineb, technical
Ziram, technical
Dimethoate, technical
Thiometon concentrates
Thiram, technical
2,4-D, technical
Endosulfan, technical
Binapacryl, technical
Toxaphene, technical
Dichlorvos, technical
.
4958-1968 Phosphamidon, technical
5278-1969 Dicofol, technical
5280-1969 Fenitrothion, technical
5526.1969 Coumafuryl, technical
5549-1970 Warfarin bait concentrates
5551-1970 Warfarin, sodium., technical
5552-1970 Warfarin, technical
6432-1972 Heptachlor, technical