HG/T 2531-1993 Photographic Chemicals Coupler COC-2 (Cyan 324) HG/T2531-1993 Standard Download Decompression Password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
Photographic Chemicals
Color-Forming Agent COC-2 (Blue 324)
HG/T2531—93
This product is nearly white or off-white flaky crystals or powder, easily soluble in dichloromethane. Ethyl acetate, acetone and other solvents, difficult to dissolve in petroleum ether; melting point 122~124℃.
Molecular formula: C, H, NO,
Relative molecular mass: 475.62 (according to the 1989 International Relative Atomic Mass Scale) Subject content and scope of application
This standard specifies the technical requirements, test methods, inspection regulations, packaging, marking, transportation and storage of the color former COC-2. This standard is applicable to the color former COC-2 used in the production of color sensitive materials. 2 Reference standards
GB191 Pictorial marking for packaging and transportation
GB/T619 Sampling and acceptance rules for chemical reagents ZB/TG85006 Light absorption of color formers Determination method HG/T2256 Determination method for ash content of color former HG/T2257 Determination method for volatile matter of color former HG/T2258 Determination method for solubility of color former HG/T2414 Determination of the content of color in color formers of photographic chemicals Reversed phase high performance liquid chromatography HG/T2415 Determination of trace metals in color formers of photographic chemicals Flame atomic absorption spectrometry 3 Technical requirements
The technical requirements for color former COC-2 shall comply with the provisions of the following table, Item
Content, %
Solubility
Volatile matter, %
Ash, %
Light absorption, ml/g, cm
Iron (Fe). μ/ g
Approved as superior product by the Ministry of Chemical Industry of the People's Republic of China on September 6, 1993
First-class product
Implemented on July 1, 1994
Copper (Cu), g/ g
Lead (Pb), g/ g
Zinc (Zn), μg/ g
Nickel (NE), μg/g
Chromium (Cr). μg / g
Photographic properties
Infrared spectrum test
Test method
4.1 Determination of the content of color former COC-2
Determined according to the provisions of HG/ T 2414,
4.2 Solubility test
IG/T 2531 —93
Superior quality
Use dichloromethane as solvent, determine according to HG/T2258, the solvent should be a transparent solution, trace mechanical impurities are allowed4.3 Determination of volatile matter
Determine according to HG/T2257, drying temperature 100～105℃4.4 Determination of ash
Determine according to HG/T2256,
4.5 Determination of light absorption
Determine according to ZB/TG85006,
4.6 Trace metals
First quality
Iron (Fe), copper (Cu), lead (Pb), zinc (Zn), nickel (Ni), chromium (Cr), according to HG/T 2415 4.7 Photographic performance test
shall be determined by negotiation between the supply and demand parties,
4.8 Infrared spectrum test
adopts potassium chloride tablet method. The measured infrared spectrum shall be consistent with the standard spectrum, the standard infrared spectrum is shown in the figure. 5 Inspection rules
Transmittance (%)
HG / T 2531—93
Number,
Standard infrared spectrumwww.bzxz.net
Sampling and acceptance shall be carried out in accordance with GB/T619. 6 Packaging, marking, transportation and storage
6.1 Packaging
The inner packaging shall be a double-layer plastic bag, which shall be tied. The outer packaging shall be made of fiberboard and sealed with a cover. The net weight of each bag shall be 20kg. Other packaging shall be determined through consultation with the user.
6.2 Marking
The outer packaging container shall be painted with a firm and clear mark. The product mark shall indicate the product name, registered trademark, standard number, product grade, gross weight, net weight, product batch number, and production date. The storage and transportation mark shall indicate "upward", "hot, afraid of moisture" in accordance with GB191. The product quality certificate shall be attached to the package.
6.3 Transportation
Handle with care during transportation. Fire, moisture and heat shall be prevented. Do not damage the packaging. 6. 4 Storage
The product should be stored in a cool, dry and ventilated warehouse. HG/T 2531—93
Additional Notes:
This standard was proposed by the Technical Supervision Department of the Ministry of Chemical Industry of the People's Republic of China, and was undertaken by the Photosensitive Material Technology Development Center of the Ministry of Chemical Industry. This standard was drafted by Beijing Chemical Plant, Qingdao Dye Factory and the Photosensitive Material Technology Development Center of the Ministry of Chemical Industry participated in the drafting, and the main drafters of this standard were Guan Ruibao, Qiang Jinglin, Hu Suqin, and Huang Zhongyi
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