Some standard content:
Chemical Industry Standard of the People's Republic of China
Photographic Chemicals
Film Hardener H-11
This product is a white powder, soluble in diketone, hot ethanol and water, molecular formula: C, H, S, 0s
Relative molecular mass: 240.31 (according to the 1989 international relative atomic mass) Subject content and scope of application
HG/T2634-94
This standard specifies the technical requirements of film hardener H-11; test methods, inspection rules, packaging, marking, transportation and storage. This standard applies to film hardener H-11 for photosensitive materials. 2 Reference standards
GB/T 191
Packaging, storage and transportation graphic marking
Chemical reagent titration analysis (volume analysis) preparation of standard solvent GB/T 601
GB/ T 602
GB/T603
GB/ T 619
Preparation of standard solutions for determination of impurities in chemical reagents Preparation of preparations and products used in test methods for chemical reagents Sampling and acceptance specifications for chemical reagents Specifications and test methods for water used in analytical laboratories GB/T 6682
HG/T2256
HG /T 2257
Determination of ash content in photographic chemical colorants Determination of volatile matter in photographic chemical colorants HG/T 2415 Determination of trace metals in photographic chemical colorants Flame atomic absorption spectrometry 3 Technical requirements
This product shall comply with the requirements of Table 1.
Content (CHS, 0, %
Infrared spectrum
Photographic properties
Decomposition
Volatile matter, %
Oriental content. %
Iron (Fe), %
Lead (Pb), %
Approved by the Ministry of Chemical Industry of the People's Republic of China on August 17, 19944
Compliance with standards
Implementation on January 1, 1995
Test method
HG/T2634-94
The standard titration solution, impurity standard solution, preparation and product used in this test method are prepared in accordance with the provisions of GB/T601, GB/T602 and GB/T603 unless otherwise specified. The water used in the laboratory should meet the third-grade water specifications in GB/T6682.
4. 1 Content (C,HiS,O,)
4.1.1 Preparation of base catalyst
Weigh 1 sodium hydroxide into a 100mL beaker, dissolve it in 20mL anhydrous ethanol, take the upper clear liquid and put it into a dropper bottle for later use. 4.1.2 Determination of
Weigh 0.05g sample (accurate to 0.0001g), place in a 250mL iodine bottle, add 20mL anhydrous ethanol to dissolve (heat with warm water), use a pipette to transfer 10mL of n-dodecyl alcohol solution (25g/L) into the iodine volumetric bottle, immediately add 1mL of alkali catalyst (white pigment is generated immediately), plug the bottle stopper and shake well, let stand for 30min, add 2mL of glacial acetic acid, then add 75mL anhydrous ethanol to dilute, and titrate with iodine standard titration solution [c(1/2T)=0.05mol/L) until light yellow, and the end point is when the color does not fade for 3min, and perform a blank test at the same time. The
content is calculated according to formula (1):
c(V, - V,)× 0. 120
Wherein: X-mass percentage of hardener H-11, %; concentration of iodine standard titration solution, mol/L; Vo
4. 2 Appearance
Volume of iodine standard titration solution consumed in blank test, mL; (1)
Volume of iodine standard titration solution consumed by sample, mL; equivalent to 1.00 mL iodine standard titration solution (c(1/2I2)=1.000 mol/L). Mass of hardener H-11 expressed in grams:
Sample mass, g-
Visual inspection of the sample should be white powder, free of foreign matter, agglomerates, etc. 4.3 Infrared spectrum
Using potassium bromide tablet method, the measured infrared harmonic diagram should be consistent with the standard spectrum. The standard infrared spectrum is shown in Figure 1. 4.4 Photographic properties To be determined through negotiation between the supplier and the buyer. 4.5 Solubility HG/T2634-94 Figure 1H-11 Infrared harmonic diagram Weigh 0.4g of sample and put it into a test tube. Add 9.6mL of distilled water. Put the test tube into warm water and shake to dissolve. Cool to room temperature and add 1h. It should be transparent without precipitation.
4.6 Volatile matter
Determine according to the provisions of HG/T2257, among which, the dry explosion temperature is 70±5C. 4.7 Ash content
Determine according to the provisions of HG/T2256.
4. 8 Iron and lead determination
Determine according to the provisions of HG/T2415.
Inspection rules
Sampling and acceptance shall be carried out in accordance with the provisions of GB/T619. 6 Packaging, marking, transportation and storagebzxZ.net
61 Packaging
The inner packaging should be a double-layer plastic bag, which should be tied. The outer packaging should be a cardboard barrel with a cover and seal. The net weight of each barrel is 20kg. Other packaging forms can also be negotiated with the user to determine the use of other packaging forms. 6.2 Marking
HG/T 2634 -
The outer packaging container should be painted with a firm and clear mark. The product mark indicates: product name, Zhushan trademark. The standard number, gross weight, net weight, product batch number, production date, manufacturer name, storage and transportation marks shall be indicated in accordance with the provisions of GB/T191, and the product quality certificate shall be attached to the package.
6.3 Transportation and storage of sugar
Do not turn it upside down during transportation, handle it with care, and protect it from moisture and heat. The product should be stored in a dry, cool and ventilated warehouse, and the validity period is one year from the date of production.
Additional instructions:
This standard was proposed by the Technical Supervision Department of the Ministry of Chemical Industry of the People's Republic of China: This standard is under the jurisdiction of the Photosensitive Materials Technology Development Center of the Ministry of Chemical Industry; This standard was drafted by the Photosensitive Materials Technology Development Center of the Ministry of Chemical Industry, and Tuhai Photosensitive Film Factory and the First Film Factory of the Ministry of Chemical Industry participated in the drafting.
The main drafters of this standard: Zhang Zang, Han Lie,
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