HG/T 2417-1993 Photographic chemicals 4-(N,N-diethyl)-2-methyl-phenylenediamine hydrochloride (CD-2)
Some standard content:
Chemical Industry Standard of the People's Republic of China
HG/ T 2417-93
Photographic Chemicals
4-(N,N-diethyl)-2-methyl-
phenylenediamine hydrochloride (CD-2)
Published on March 22, 1993
Ministry of Chemical Industry of the People's Republic of China
Implementation on October 1, 1993
Chemical Industry Standard of the People's Republic of China
Photographic Chemicals
4-(N,N-diethyl)-2-methyl-
phenylenediamine hydrochloride (CD-2)
This product is white or off-white powder or granular crystals, easily soluble in water, methanol and acid. Structural formula:
N(C,H)
Relative molecular mass: 214.74 (according to the 1989 international relative atomic mass) Subject content and scope of application
HG/T 2417
This standard specifies the technical requirements, test methods, inspection rules and packaging, marking, transportation and storage of photographic chemicals CD-2.
This standard applies to CD-2 used for oil-soluble color positive film development and processing. Reference standards
GB601 Preparation of standard solution for chemical reagent titration analysis (container and pan analysis) GB602 Preparation of standard solution for determination of impurities in chemical reagents GB603 Preparation of preparations and products used in test methods for chemical reagents GB/T619 Sampling and acceptance rules for chemical reagents GB6682 Specifications and test methods for water used in analytical laboratories GB/T9724 Chemical reagents
General rules for pH determination
3 Technical requirements
Photographic chemicals CD-2 should meet the following requirements: Approved by the Ministry of Chemical Industry of the People's Republic of China on March 22, 1993, and implemented on October 1, 1993
Indicator name
CD-2 (C, HN, CI), %
Appearance of aqueous solution
Irradiation
Glow content, %
Ash content, %
Heavy metal content (as Pb), %
Fe, %
Infrared spectrum
Photographic properties
Test method
HG / T 2417 — 93
99. 0 ~ 102. 0
The standard titration solution, impurity standard solution, preparation and product used in this test method are prepared in accordance with the provisions of GB601, GB602 and GB603. The laboratory water should comply with the provisions of Grade 3 water in GB6682. If there are other provisions, they shall be given in the standard. 4. Determination of 1CD-2 (CuHN,CI) content
Weigh 0.2 g sample, accurate to 0.0001 g, dissolve in 100 mL water, add 40 mL sulfuric acid solution (1+9), 2 drops of ferroxine indicator solution (0.05 g/L), and titrate with sulfuric acid standard titration solution (c[Ce(S0)) 0.05 mol/L) until the color of the solution changes from orange-yellow to light yellow and does not fade within 15 s. Perform a blank test under the same conditions.
The content of CD-2(CuHN,CI) (X) is calculated according to formula (1): X,
wherein:
c*(V-V.)× 0.107 4
-the percentage of CD-2, %;
-the amount of sulfuric acid standard titration solution used for titrating the sample, mL; the amount of cerium sulfate standard titration solution used for titrating the blank, mL; -the molar concentration of sulfuric acid standard titration solution, ml/L; X100
the mass of the sample, g
0.1074-the amount of CD-2 equivalent to 1.00mL sulfuric acid standard titration solution 1cCe(SO,2)=1.000mol/L) expressed in grams
4.2 Appearance test of aqueous solution
Weigh 3g of sample and dissolve it in 100mL of water. The appearance is colorless or light red solution, and there should be no black oil. 4. 3 Solubility test
Weigh 30g of sample, accurate to 0.1g, add 2g of sodium sulfite, dissolve it in 100mL of water, the sample solution should be transparent, and there should be no insoluble matter.
4. 4 Determination of pH value
HG/ T 2417 — 93
Weigh 5g of sample, accurate to 0.1g, dissolve it in water, dilute to 100mL, and mix. According to GB 9724, the pH value is determined at 25 t.
4.5 Determination of volatile matter
Weigh 5 g of sample accurately to 0.01 g, place it in a weighing bottle that has been constant weight, and use the oven method to dry it at 105±5°C to constant weight (about 1h).
The volatile matter (Xz) is calculated according to formula (2):
Where: X,---the percentage of volatile matter, %; m,-mz
m,--the mass of the weighing bottle plus the sample before drying, g; m2--the mass of the weighing bottle plus the sample after drying, g;--the mass of the weighing bottle, g.
4.6 Determination of ash
X 1000
Weigh 5g of sample, accurate to 0.01, place in a porcelain crucible with constant weight, heat on an electric furnace, fully carbonize, then place in a high-temperature furnace, burn at 600±50℃ to constant weight (about 6h). Keep the residue to measure heavy metals and iron: ash content (X) is calculated according to formula (3):
Where: X——ash percentage, %; m
Mass of the crucible with ash added, g;
Mass of a pile of crucibles, g; || tt||Mass of sample, g.
4.7 Determination of heavy metals
In the crucible containing 4.6 retained ash, add 1L of hydrochloric acid solution (t+1) to dissolve it, and transfer it to a 50mL beaker, dilute it with 25mL of water, add 2 drops of p-nitrophenol indicator solution (2.5g/L), add ammonia solution (1+9) drop by drop until the sample just turns yellow, then add hydrochloric acid solution (1+99) drop by drop until the solution turns colorless, and add 2.5mL in excess. Transfer to a 50mL container bottle, dilute to the mark with water, and mix (solution A):
Take 20.0mL solution A, place in a 50mL colorimetric tube, add 5mL saturated hydrogen sulfide water, dilute to the mark with water, mix well, the color of the sample solution shall not be darker than the standard. The standard is to take 0.05mg lead (Pb) impurity standard solution and treat it in the same way as 4.6 to retain the ash content. 4.8 Determination of iron
Take 20.0mL solution A, place in a 50mL colorimetric tube, add 2mL hydroxylamine chloride solution (100g/L) , mix, let stand for 10 minutes, add 2mL acetic acid-sodium acetate solution (pH=5.0) and 2mL 1,10-phenanthroline solution (1 μg/L), dilute to scale with water, mix, let stand for 10 minutes, the sample is dissolved and the color is not dark. The standard is to take 0.05mg iron (Fe) impurity standard solution and treat it in the same way as 4.6. 4.9 infrared spectrum identification
Weigh about 2g of sample, add about 0.2mg of dried spectrally pure potassium bromide fine powder, and grind it into fine and uniform powder with an agate mortar. Then put it into a tablet former as soon as possible to make tablets containing 0.1g of the mixture per 1cm. Infrared absorption spectrum is measured in the range of 400-400cm- on an infrared spectrophotometer. The obtained spectrum should be consistent with the standard spectrum. See the figure below for the standard spectrum.
40003600
4.10 Photographic performance test
4. 10.1 Standard sample
HG / T 2417 -- 93www.bzxz.net
Wave number, cm-
CD-2: Standard infrared absorption spectrum
CD-2 samples with known technical indicators that meet the requirements and excellent performance are used to measure the photographic performance of the samples, 400
The standard sample is proposed by the drafting unit of this standard and is issued for use after being tested and approved by the Photosensitive Material Quality Supervision and Inspection Center of the Ministry of Chemical Industry. The validity period is 1 year.
4. 10.2 Determination
According to the processing formula and process of the user, the bottle phase properties of the test sample and the standard sample are measured in parallel. The relative minimum density measured should be lower than 0.02, the relative contrast coefficient of the yellow layer should be lower than 0.18, and the relative contrast coefficients of the color layer and the blue layer and the relative specified density within the contrast coefficient range of 2.8 to 3.9 should not be higher than 0. 10. Inspection rules
51 This product should be inspected by the quality inspection department of the manufacturer in accordance with the provisions of this standard. The manufacturer should ensure that all products shipped meet the requirements of this standard.
5.2 The user has the right to inspect the received products in accordance with the provisions of this standard.5.3 Sampling should be carried out in accordance with the provisions of GB619.
5.4 If one of the indicators in the test results does not meet the requirements of this standard, a re-test shall be conducted from twice the amount of packaging. If only one indicator in the re-test results does not meet the requirements of this standard, the batch of products cannot be accepted. 5.5 When the supply and demand parties have objections to the product quality, they can negotiate to resolve the issue. If arbitration is required, it can be handled in accordance with the provisions of the "Interim Measures for National Product Quality Arbitration Inspection".
6 Packaging, marking, transportation and storage
6.1 Packaging
The transport packaging unit is 30 kg and the inner packaging unit is 5 kg. The inner packaging is a double-layer vinyl bag, sealed. The outer packaging is an iron box, sealed with polyester tape: There is a bag of silica gel desiccant in the box. The transport packaging is a cardboard box, sealed with adhesive tape. Each transport box can hold 6 boxes. If special packaging is required, it shall be agreed upon by the supply and demand parties. 6. 2 Marking
The transport box and iron box shall be firmly marked with the product name, standard number, registered trademark, net weight, gross weight, production batch number, photographic chemicals and factory date, manufacturer name and address, and marked with words such as "avoid light" and "handle with care". The box shall be accompanied by a product quality inspection certificate.
6.3 Transportation and storage
HG /T 2417 — 93
During transportation and storage, this product should be kept away from light and placed in a cool and dry place. Additional notes:
This standard was proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the Photosensitive Material Technology Development Center of the Ministry of Chemical Industry. This standard was drafted by the Nantong Synthetic Material Experimental Factory of the Ministry of Chemical Industry, and the Photosensitive Material Technology Development Center of the Ministry of Chemical Industry participated in the drafting.
The main drafters of this standard are Wu Zhigang and Li Ting. This standard refers to the quality indicators of CD-2 products of E. Merck Company of West Germany. It also refers to the Japanese Industrial Standard JIS K7701-1977≤Test methods for period chemicals》People's Republic of China
Chemical Industry Standard
Photographic Chemicals
4-(N,N-diethyl)-2-methyl-phenylenediamine dichloride (CD-2) HG/T2417-93
Editorial.1 Industry Standard Editorial Department
(Standardization Institute of the Ministry of Chemical Industry)
Postal Code: 100013
Printing Standardization Institute of the Ministry of Chemical Industry
Copyright is exclusive and may not be reproduced
Format 880×12301/16 Printing Sheet Number of Words 9000 First Edition in June 1993
[First Printing in June 1993
Print Number [300
Cost 2.30 Yuan
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