Tianjin Industrial And Automotive Suppliers and Manufacturers

Products like plate feeding machines, chain, cement mill, dust collector .Trade, export

Boots like working boots, exposure boots, mining boots, anti-impact and penetration-preventative rain boots.

Swivel hoist ring, lifting point, rigging hardware, swivel shackle.

Stretch film, shrink film, greenhouse film.

Reinforcing steel bar,roofing sheet,welded steel pipe,galvanized steel pipe,spiral steel pipe,seamless steel pipe,steel coil and plant..

1.white crystal product. 2.Used as a mordant in textile dyeing. 3.Used for coloring and galvanic tinning of metals. 4.Used in baking, to make hard candies.

TESTING ITEM INDEX RESULT Aluminum Oxide AL2O3Content 28.0%MIN 28.2% Basicity 30.0%-95.0% 80% PH value 1% aqueous solution 3.5-5.0 4.0 Water insoluble matter 1.5%MAX 1.2% Fe Content 3.5%MAX 2.0% As Content 0.0005%MAX 0.0005% Pb Content 0.002%MAX 0.002% Cd Content 0.001%MAX 0.001% Hg Content 0.00005%MAX 0.00005%

ITEM UNIT STANDARD ACTUAL DATA Sodium Hydrosulphite % 88 min 88.2 Water insoluble % 0.1 max 0.06 Sodium thiosulfate: Na2S2O3 % 1.2 max 0.7 Sodium metabisulfite: Na2S2O5 % 5-7 6 Sodium bisulfite:NaHSO3 % 0.5 max 0.4 Sodium carbonate: Na2CO3 % 0.6-2 1.5 Sodium formate: HCOONa % 0.5 max 0.3 Zn % 0.0001 max 0.00009 Fe % 0.005 max 0.004

Content 70 Batch NO. 16132 Quality standard National standard CAS No. 16721-80-5 Items Standards Result NaHS 70.0% 70.56% Na2S%   2.50 % 1.33% Na2SO3% 1.0 % 0.91% Fe% 0.002% 0.001% Na2CO3 2.0 % 0.53 % Water insoluble% 0.2% 0.05% Conclusion (QUALIFIED)

ITEM QUALITY INDEX TEST RESULT EXCELLENCE FIRST CLASS PASSED Available Chlorine %â?¥ 70.0 67.0 65.0 71.2 Size(12~50mesh)% â?¥ 90 90 90 95 Appearance White or light-grey granular White granular Note ; Water Whitepess 7.00 LEAD(Pb): 0.7mg/kg 67.00 Arsenic Result 0.7mg/kg (Specification =5)

Appearance Yellowish-brown Crystal Yellowish-brown Crystal FeCl3 6H2O, % 96 97.28 Fe3+, % 19.20 20.10 Fe2+, % 0.15 0.05 Insoluble substance, % 1.00

Chemical formula: NH4HCO3 CAS� NO.: 1066-33-7 H.S. CODE: 28369940 COUNTRY OF ORIGIN: CHINA Ammonium bicarbonate ï¼?FOOD GRADEï¼? ITEM Standard Result Total Alkalinity(NH4HCO3) % 99.2-100.5 99.36 Chloride(Cl) % â?¤ 0.003

PRODUCT NAME: SODIUM METABISULPHITE PRODUCTION TIME: FEB, 2022 EXPIRY TIME: FEB, 2023 ITEM SPECIFICATION TEST RESULT Na2S2O5 content : 97%min 97.6% Heavy metals (as Pb) : 0.001%max 0.0001% Iron (Fe) : 0.003%max 0.0015% Water insoluble : 0.05%max 0.01% Sodium Chloride (NaCl): 0.05% max 0.045% Arsenic (As) : 0.0002%max 0.0001% PH Value : 4.0-4.6 4.5

CERTIFICATE OF ANALYSIS Product: Methylene Chloride No.ï¼?NBJHJL-11-J-021 Sampling date 2-Feb-2023 Sample source Drums Analysis date 2-Feb-2023 Executive criteria HG/T 4117-2008 Batch No. 024230201 Quantity 21,600kg Manufacturing date 1-Feb-23 Expiry date 1-Feb-24 Description Technical specification Result Top quality High quality Qualified Appearance Colorless and clear liquid Conform Purity, % 99.90 99.50 99.20 99.99 Moisture, % 0.010 0.020 0.030 0.0019 Acidity (as HCL), % 0.0004 0.0004 0.0008 0.0000 Chroma APHA (Pt-Co) 10 10 10 5 Mass fraction of evaporated residue % 0.0005 0.0005 0.0010 0.0001 Conclusion: Meet the requirements of Top quality

COMMODITY: SODIUM HYDROSULPHITE 88%MIN PACKING: 50KGS IRON DRUM WITH DOUBLE PLASTIC LINERS. ITEM UNIT STANDARD ACTUAL DATA Sodium Hydrosulphite % 88 min 88.2 Water insoluble % 0.1 max 0.06 Sodium thiosulfate: Na2S2O3 % 1.2 max 0.7 Sodium metabisulfite: Na2S2O5 % 5-7 6 Sodium bisulfite:NaHSO3 % 0.5 max 0.4 Sodium carbonate: Na2CO3 % 0.6-2 1.5 Sodium formate: HCOONa % 0.5 max 0.3 Zn % 0.0001 max 0.00009 Fe % 0.005 max 0.004

Number:114747-48-7 Molecular Formula:C26H27N3O2 Molecular Weight:413.51 Solubility:Sparingly Soluble (9.1E-5 g/L) (25 C) Density:1.26 0.1 g/cm3 (20 C 760 Torr)

PRODUCT NAME Fluorescent Orange R614 Type UVA-RT98 Appearance light pink powder Purity:95% Excitation wavelength:365nm Emission wavelength:614nm Fluorescent color: orange to red

1-Nitroso-2-naphthol (CAS: 131-91-9) CAS Number: 131919 Molecular Formula: C10H7NO2 Molecular Weight 173.17 Mp: 106 108 Content: 95%

Cas No: 137234-87-8 Purity:99% Appearance: White to off-white powder Molecular formula: C6H7FN2O Molecular weight: 142.13

Cas No: 117724-63-7 Purity: 96% Appearance: White to off-white powder Molecular formula: C6H4F3NO2S Molecular weight: 211.16