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FHONE NO. : Q286 21 62714587 Chemical Industry Standard of the People's Republic of China
Barium Stearate
1 Raw material and applicable scope
【Light】
DCT. 15 2002 1a:42AM P1
HG 2338 - 92
This standard specifies the technical requirements for the production of hardened barium stearate. Test methods, inspection rules, testing, comparison, sugar and storage requirements. This standard is used for industrial testing of hardened barium stearate obtained by double decomposition after chemical reaction. The product is mainly used as a sugar stabilizer and inhibitor of ethyl acetate.
2 Standard for chemical analysis (narrow quantitative analysis) GB603
Preparation of preparation and preparation apparatus for chemical analysis GB 617: General method for chemical analysis GB 6678
General rules for chemical products
GB·6682·Test water standard
3 Technical requirements
31 Appearance: white powder rate. No periodic adjustment 3.2, technical indicators
If the composition changes, the following requirements should be adjusted.
Fine glucose, Zhang
Acid (measured in its test acid). %
Additive and subtractive. %
Rainbow; (through 0, 075 m color period), %4Test method
20. ± 0. 4
20. 0 ± 0. 7.
Color
20.0±1,5.
The standard specifications, preparations and side adhesion used in this standard, when there are no other requirements, shall be in accordance with the specifications of GB601 and GB603.
The requirements used in this standard, when there are no special requirements, shall be in accordance with the specifications of general water in 6682, 41 external requirements
self-micro.
China Energy People's League Chemical Industry Department 1 Purchase 92-06-01 Wholesale 1993-07-01 Placement
FROM : SIS_UXbzxZ.net
4 Quantity determination
PHCNE ND. : BO26 21 64714537HG 2338 --93
0CT. 15 2082 10:43M P2
42 1. Analysis
The excess carbon condensate that has been secreted reacts with the sodium hydroxide to form a precipitate. After washing with sodium hydroxide and passing through a stream of acid. Calculate the mass of the precipitate with the precipitate,
52武树和游技
blood. Standard stabilizing solution: (1 / 2 H,S0,) = 0.3 1dl / Lih Sodium complex oxide standard droplet: c (NsOH) 0.3ma1 / L; portion indicator: 10g /.
42.3. Analysis of the sample 1 (accuracy 0.00012): placed in 250L oil heating. Add 30.00 drops of standard acid solution into the bottle, cool it to room temperature, add phenol and titrate it with standard sodium hydroxide. When the liquid does not fade within 30 minutes, a slightly red color is observed, which is the end point. 4.2.4 The mass percentage of the analytical solution is calculated according to (1): x
(V+-e1- Y.:e)× 0.068 s?
wherein: “- is the volume of the standard concentration, Lx 10*
is the actual concentration of the standard solution of sulfur dioxide, ol/L; is the actual concentration of the standard solution of sulfur dioxide, ]/L; is the mass of the sample,
++++*r,
0.06867- is equivalent to the standard concentration of 1:100mL standard liquor (1/2530) 1.000m01/L3, and is the mass of the sample.
1 2.5 The sum of the results of two parallel tests is not more than 92%, and the average value is the average value. 4.3. Determination of the content of the sample 4.3.1 Test and solubility a, 95% ethanol b, sodium hydroxide standard solution: e [NaOH) ~ 0. 05 0I / L; c. Enzyme indicator: 10 g / L. 3.2 Instrument 3mL micro-tube 4.3.3 Analysis steps Weigh 2 ml of sample (accurate 0. 1 g) in a 250 mL tris-ethanol bottle, add 50 L of ethanol, simmer for 0 min, add 30 mL of ethanol until the sample is dry, collect the sample and wash it, add phenol indicator 5, Mix the monooxygenated sugar with the standard liquid and determine the concentration until the microfiber bag is maintained for 30 minutes without color absorption. The end point is the same as the blank test with ethanol. 4.3.4 Analysis of the results of the test: 6
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G-(V+-V,)×0.271
Where is the actual concentration of the sodium hydroxide standard? Type / L; The volume of the standard sugar. Blood death y
V-blank consumption of the standard sodium hydroxide solution to determine the volume. Add L; a test of the quality of the god. 01. 15 2802 10:44AM P3
is equivalent to 1.00mL sodium chloride standard solution (c(NzOH)=1.00mpl/L), expressed in grams of industrial hard acid base,
or, 4 such as the potential effect of the determination
4 4. 1 Use the data and set egg
pulse volume short. Direct control containing 50m, two 30 dynamic rate; electric heating value of sugar:
in the dryer: the sense of the appropriate; the drying short.
4. 4.2 new pregnancy rapid
special electric heating flat frost Xie Shi to 105 soil 3 Shi: put the bottle with the effect of the world in the electric heating box to dry slowly straight, in the weighing short weighing of the package constant weight of 3 & (sugar to 0. 000 1), the weighing question is measured in the plate of the condenser water slowly with the display. Open the weighing bottle and turn it over next to the weighing pan. When the wet skin rises to 03+℃ and keeps at 21℃, heat the weighing pan and put it into the drying device. Cool for 30 min. The fat sample is soluble in water. Table 4.3 Summary of the results Heating reduction flux % is calculated according to (3): W,-m? Where: m, the mass of the weighing bottle to be dried, the mass of the weighing bottle and the weighing pan after drying, the mass of the sample, the mass of the sample, the sample 4, 5 Determination of molten point × 100*+ 4.6 Fineness test room 1 Instrument and equipment or sieve (3B 6003]: 75 mm × 25 m / 0, 075 mx) b.
soft pen: length 35 mm, width 20 mams industrial road:
electric heating value pole drying oven.
4. 6, 3. Analytical fast media
weigh 5 samples [precision axis to 0. 1 2, weigh in 250 μm of continuous combustion bottle, add 50 μm of industrial film, carry evenly, hot lip smear test sieve, take the warm industrial feeling of the bottle and the test sample on the test sieve to rinse through the sieve, the test sample in the sieve together with the sample in the electric heating value temperature drying, dry at 85-90 30, then use the electric light lock, make the sample on the test sieve continue to sieve, finally weigh the sieve residue that cannot be sieved (accurate stem 0.0001). The 6.3-point nesting result of the derivation of the decay rate (through 0. 075 m spot) avoids the percentage of the year ×, according to the factor (4): ww.bzsoso.icomFrm: sis_ux
The amount of the mixed lazy, this
m sample of the amount of separation,
5 The more the test, the more
PhONE NO..:BB86 21 64714537HG 2338 - 92
m一摄
OcT, 15 2282 1a:45AM P4
1This product shall be inspected by the quality department of the production plant. The production plant shall ensure that the product meets the requirements of this standard and shall have a quality certificate in a timely manner.
5.1 The charging unit has the right to check and accept the collected products according to the regulations of this standard, or 3 products are annually produced as batches,
54 According to G3667, the sample is almost clean and the sampling tube is evenly sampled. The total sampling density shall not be less than % according to the density of the sample. One bottle shall be inspected by the quality department. Keep another bottle for inspection, 5. If one of the indicators in the inspection results does not meet the requirements of this standard, a new sample should be taken from the confidential package for inspection. The effect of milk frying does not meet the requirements. 6. When the supply and demand parties have disputes over product quality: the supply and demand parties can jointly select a unit, and the unit should conduct an emergency inspection according to the provisions of this standard.
6. The five key signs of pregnancy balls, color pancreatic, and sperm spots should be on the surface of the product package. The product shall be packed in special buckets and sealed packaging. Each product shall be accompanied by a product quality certificate, including the manufacturer name, product name, standard number, batch number, inspection date, and inspection quantity. 6.3 The product shall not be dissolved with acid, alkali or other stable sugars. It shall not deteriorate due to age. 6.4 The product shall be stored in a dry and wind-proof warehouse. The storage period is 1 year. This standard is issued by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China and the Institute of Chemical Industry of Xi'an. The standard is jointly issued by Jinpo Chemical Plant and Shanling Chemical Research Institute. This standard shall be strictly followed. Sugar rate, this standard is effective from the date of implementation of the original Chinese National Chemical Industry Ministry Standard HG2-1205-79 certification fat imager [light clean degree,
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