GREMONT CHEMICAL COMPANY LIMITED
Naphthalene Sulphonate Formaldehyde
SNF
 
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SPECIFICATION
Specification        
Appearance : Yellow Brown powder Yellow Brown powder Yellow Brown powder
PH Value : 6 – 8 7 – 9 7 – 9
solids content (%) : 92% min 92% min 90% min
net starch fluidity(mm) : 260 min 250 min 240 min
content of cl- (%) : 0.3% max 0.4% max 0.5% max
Na2SO4 content (%) : 5% max 10% max 20% max
surface tension (N/m) : (71 ± 1) × 10 -3 (71 ± 1) × 10 -3 (71 ± 1) × 10 -3
 
 
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