Product Name ： polyvinyl alcohol/Poly(vinyl alcohol)
CAS No. : 9002-89-5
Molecular formula : C2H4O
Molecular weight : 44.05256
EINECS No.  :  209-183-3
Melting point ：>300 °C
Boiling point ： -14.5°C (rough estimate)
Density ： 1.080 g/cm3
Flash point ： 79°C
Solubility ： H2O: soluble (hot)
PH value ： 3.5-7.0 (40g/l, H2O, 20℃)

Product Name ： Phthalic anhydride
CAS No. : 85-44-9
Molecular formula : C8H4O3
Molecular weight : 148.12
EINECS No. : 201-607-5
Melting point ： 131-134 °C
Boiling point ： 284 °C
Density ： 1,53 g/cm3
Flash point ： 152 °C
Form ： Flaky Crystals
Colour ： White
PH value ： 2 (6g/l, H2O, 20℃)
Water solubility ： 6 g/L (20 ºC)

Product Name ： Sodium sulfide
CAS No. : 1313-82-2
Molecular formula : Na2S
Molecular weight : 78.04
EINECS No. : 215-212-0
Melting point ： 950 °C(lit.)
Density ： 1.86 g/mL
Form ： flakes
Colour ： Yellow, red
Water solubility ： 186 g/L (20 ºC)

Product Name ： Sodium hydrosulfide
CAS No. : 16721-80-5
Content:70%
Molecular formula : HNaS
Molecular weight : 56.06
EINECS No. : 240-778-0
Melting point ： 55°C
Density ： 1,79 g/cm3
Flash point ： 90°C
Form ：Solid
Colour : Off-white

Product Name ： Oxalic acid
CAS No. : 144-62-7
Molecular formula : C2H2O4
Molecular weight : 90.03
EINECS No. : 205-634-3
Melting point ： 189.5 °C
Boiling point ： 365.1°C
Density ： 0.99 g/mL
Flash point ： 101-157°C
Packaging: 25kg/bag, ton bag

Product Name : Chloroacetic acid
CAS No. : 79-11-8
Chemical formula : C2H3ClO2
Molecular weight : 94.497
EINECS No. : 201-178-4
Water solubility : soluble
Density : 1.58 g/cm³
Appearance : White crystalline powder
Flash point : 71.5 ℃
Boiling point : 189 ℃