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5 Inspection rules
5.
5.
Each batch of products that leave the factory should be accompanied by a quality certificate in a certain format, which includes the product name, product grade, manufacturer name, factory address, batch number or production date and the number of this standard
5.
5.
5.
6 Marking, packaging, transportation and storage
6.
6.
6.
6.
7 Security
Guanidine nitrate is a strong oxidant, and it will react with combustible reducing materials.
Appendix A
Preparation of picric acid solution
A.
A.
A.
Weigh 0.
A.
Weigh 25g picric acid (accurate to 0.
01g), dissolve it in 2000mL water, heat to dissolve, cool to 20℃, filter, draw 25mL filtrate, place it in a 250ml Erlenmeyer flask, add 2 drops of phenol red indicator solution, and use hydroxide The sodium standard titration solution is titrated until the solution is reddish, which is the end point
.
The concentration of this picric acid solution should be 12.
0g/L～12.
4g/L
.
The concentration X (g/L) of picric acid solution is calculated according to formula (A.
1):
Where: V— volume of sodium hydroxide standard titration solution consumed in titration, mL;
c—The actual concentration of sodium hydroxide standard titration solution, mol/L;
0.
2291—The mass of picric acid expressed in grams equivalent to 1.
00mL sodium hydroxide standard titration solution [c(NaOH)=1.
000mol/L]
.
Related Links: Guanidine Nitrate for Industrial Use (3)
