国产农村一级毛片精品,黄色福利午夜视频,久久频这里精品99香蕉久网址,久久久精品国产免费观看同学,人人添人人澡人人澡人人人人,欧美中文字幕在线中出观看,www.天天干视频在线观看

Sulphur Black Sulphur parti-color Medicine intermediates Vat pink R Dye intermediates Others
Details

2,4-Dinitrochlorobenzene

C6H3(NO2)2Cl Relative molecular quality:202.55

【Properties】
Yellow to tan crystals, insoluble in water, soluble in ethanol.

【Qulity standard】 
Quality standard: HG/T2553-2003

Items Indices
Fine grade First grade Past grade
Appearance Light yellow to light brown casting
Crystalliation point/°C ≥ 48.5 47.50 47.00
Purity/% ≥ 99.00 96.00 93.00
Low boiling matter/ % ≤ 0.20 1.00 1.00
Isomerism/% ≤ 1.00 3.00 6.00
High boiling matter/ % ≤ 0.05 0.10 0.10
Moistness/ % ≤ 0.50

【Uses】
For manufacturing dyes, pigments and medicine intermediate.

【Starage and transportation】
To be kept in a cool, ventilation and dry place. Prevent from sun-shine. Far from fire. Don't contact with skin because the product is strongly irritant, poisonous. Must be prevent from sharp bump to transport it.

【Packing】
In iron drums of 300kg net each.




Pre: SULPHUR BLACK BR.B 200%
Next: DL-hydroxyl phenyl glycin