Items
Standard
Results
¡ü0.1%
0.08%
Ca(oh)2
¡ü0.35%
0.13%
Caso4
¡ü0.1%
0.04%
Ph value
7-9
7-9
Heavy metals (as pb)
25kgs/bag
Item
Spec
Result
Total alkali content (as nahco3 ): /% ¡ý
99.0
98.5
Loss on drying % ¡ü
0.15
0.20
Ph value ¡ü
8.5
8.7
Nacl/% ¡ü
0.20
0.50
£¨fe)/% ¡ü
0.002
0.005
Water insoluble /% ¡ü
0.02
0.05
Sodium carbonate/% ¡ü
0.05
0.5
£¨ca)w/% ¡ü
pb£© /% ¡ü
0.0005
25kgs/bag, 50kgs/bag, 1000kgs/bag
Item
Test method
Index
Analysis results
Purity % (m/m)
Sh/t1756
99.5%min
99.95%
Moisture % wt
Gb/t6283
0.1% max
0.03%
Density (20d.C.) g/cm3
Gb/t4472
0.804~0.806
0.806
Distillation range(d.C.)
Gb/t7534
78.5~81.0
78.5
Non-volatile matter (mg/100ml)
Gb/t6324.2
5max
1.7
Odor
Smell
Special odor, no residual odor
Qualifired
Color ( hazen )
165kgs/new iron drum
25kgs/bag, 50kgs/bag
Purity: 99.8PCT min.(by sublimation), 99.82
Moisture: 0.10PCT max.,0.07
Ash: 0.03PCT max. 0.02
Ph value: 7.5 -- 9.5, 8.1
Colour(APHA): 20 max., 15
Haze(bolus alba) degree: 20 max, 20
Aspect: White crystalline powder
White crystalline powder.
Total alkali content : 99.2% min 99.56%
Chloride (NaCl): 0.7% max 0.35%
Sulphate(SO4): 0.03% max 0.0010%
Iron(Fe2CO3): 0.03% max 0.014%
Water insoluble matter :0.04%max 0.013%
Bulk Density: 0.9g/ml min 1.14
Particle size 180 p m Sieve Remainning:
70.0% min 84.3%.
Woven bags in 25kgs/40kgs/750kgs.
Purity: 99.2% min.
Chlorides: 0.7% max.
Fe: 0.004% max.
Water insolubles: 0.04% max.
LOI: 0.8% max. Sulphate: 0.03% ma.
Woven bags 25kgs/50kgs/ton bag.
