Pragna Group

1,2,3-bezotriazol 1,2,4-tri Chloro Benzene
1,3,4-xylidine-5-sulphonic Acid 1,4-sulphophenyl-3-methyl-5-pyrazolone (Spmp)
2-aminophenol-4-sulphonic Acid(Oapsa) 2-chloro-4-nitro Aniline[ortho Chloro Para Nitro Aniline](Ocpna)
2-nitro-4-amino Diphenylene-4-sulphonic Acid(2-nadpsa) 2,4-di Nitro Aniline
2-4-di Nitro Chloro Benzene 2,4,5-tri Chloro Aniline
2,4,5-tri Chloro Nitro Benzene 2,5-dichloro Aniline(Scarlet Gg Base)
3-di Ethyl Amino Phenol (Demap) 3,3-di Chloro Benzedine Di Hydrochloride
3,3-di Chloro Benzene 3,4-di Chloro Aniline
3,4-di Chloro Nitro Benzene(3,4-dcnb) 4-chloro-2-amino Phenol[2-amino-4-chloro Phenol](4 Cap)
4-nitro-2-amino Phenol(4 Nap) 4-nitro-4-amino Diphemylene-2-sulphonic Acid(4-nadpsa)
4-sulpho Formazone Base 4,4 Diamino Sulphanilide 4,4 Diamino Benzsulphanilide (Dasa)
4,4-di Amino Benzidine-2,2-di Sulphonic Acid 4,4-di Amino Diphenyl-2,2-di Sulphonic Acid
4,4-di Amino Stilbene, 2:2 Di Sulphonic Acid (Dasda) 5-nitro-2-amino Phenol(5 Nap)
6-acetyl Amino-2-amino Phenol-4-sulphonic Acid 6-chloro Metanilic Acid
6-nitro 1-diazo 2-naphthol 4-sulphonic Acid 6-nitro-2-amino Phenol(6 Nap)
Alpha Naphthylamine Amino G-acid
Aniline-2,4-di Sulphonic Acid Anthranilic Acid
Benzanthrone Benzyl Benzoate
Chloranil Di Anisidine Base
Di Mehtyl Sulphate F.c.acid(4,4-diamino Di Phenyl Amine 2-sulphonic Acid)
Gamma Acid G-salt(2-hydroxy Naphthalene 6-8 Disulphonic Acid)
H-acid(1-amino-8-napthol-3-6-di Sulphonic Acid) K Acid(Schaeffer's Acid )(2-hydroxy Napthalene-6-sulphonic Acid)
Meta Phenylene Di Amine Di Sulphonic Acid (Mpddsa) Meta Phenylene Di Amine-4-sulphonic Acid(Mpdsa)
Meta Ureido Aniline(Mua) Metanilic Acid
N-methyl J-acid N-phenyl J-acid
Ortho Amino Phenol 4 Sulfonamide (O.a.p.s.a Amide) Ortho Anisidine Para Sulphonic Acid (Oapsa)
Ortho Chloro Para Nitro Aniline(Ocpna) Ortho Di Chloro Benzene[1,2-di Chloro Benzene](Odcb)
Ortho Dianisidine Base Ortho Nitro Chloro Benzene (Oncb)
Ortho Nitro Chlorobenzene 4-sulphonic Acid(Oncbsa) Ortho Tertiary Butyl Cyclo Hexyl Acetate
Ortho Toluidine Para Amino Acetanilide-3-sulphonic Acid(Paa 3sa)
Para Amino Azo Benzene 4 - Sulfonic Acid (Paab 4sa) Para Amino Azobenzene-3-4-di Sulphonic Acid(Oncbsa)
Para Amino Azobenzene-4-sulphonic Acid Para Anisidine Ortho Sulphonic Acid
Para Anisidine-3-sulphonic Acid Para Chloro Ortho Nitro Aniline[4 Chloro 2 Nitro Aniline](Pcona)
Para Di Chloro Benzene(Pdcb) Para Nitro Aniline 2-sulphonic Acid
Para Nitro Aniline(Pna) Para Nitro Chloro Benzene Ortho Sulfonic Acid(Pncbosa)
Para Nitro Chloro Benzene(Pncb) Para Phenylene Diamine Di Sulphonic Acid(Ppddsa)
Phenyl Hydrazine Para Sulphonic Acid R Salt
Resist Salt Sodium Naphthionate
Sodium Sulphanilate Sulphamic Acid
Sulphanilic Acid Sulpho Tobias Acid
Tertiary Butyl Catechol[1,2 Dihydroxy-4,tertiary Butyl Benzene] Vinyl Sulphone Ester Acetanilide Base
Vinyl Sulphone Ester Ortho Anisidine Base Vinyl Sulphone Ester Para Base Ester

S.N CAS No. Item
1 63148-62-9 Silicone oil
2 77-92-9 Citric acid
3 9003-05-8 Polyacrylamide
4 7664-39-3 Hydrogen fluoride
5 9000-11-7 Carboxymethyl cellulose
6 7757-82-6 Sodium sulfate
7 68-04-2 Sodium citrate
8 7664-38-2 Phosphoric acid
9 1310-73-2 Sodium hydroxide
10 497-19-8 Sodium carbonate
11 139-33-3 EDTA disodium
12 67-63-0 Isopropanol
13 25322-68-3 Polyethylene Glycol
14 144-55-8 Sodium bicarbonate
15 4404-43-7 Fluorescent Brightener 28
16 7758-29-4 Sodium tripolyphosphate
17 7601-54-9 Trisodium phosphate
18 532-32-1 Sodium benzoate
19 5329-14-6 Sulfamic acid
20 142-91-6 Isopropyl palmitate
21 7782-99-2 Sulfurous Acid
22 9014-01-1 Subtilisin (Compound proteinase)
23 1344-09-8 Sodium silicate
24 6834-92-0 Sodium metasilicate
25 7720-78-7 Ferrous sulfate

S.N CAS No. Item
1 100-21-0 Terephthalic acid
2 67763-03-5 Silsesquioxanes
3 9003-01-4 Acrylic acid
4 1333-86-4 Carbon black
5 80-62-6 Methyl methacrylate
6 61788-97-4 Haloperidol
7 75-38-7 1,1-difluoroethylene
8 100-42-5 Styrene
9 9002-84-0 Poly(tetrafluoroethylene)
10 124-04-9 Adipic acid
11 107-21-1 Ethylene glycol
12 126-30-7 Neopentyl glycol
13 85-44-9 Phthalic anhydride
14 106-89-8 Epichlorohydrin
15 9003-08-1 Amino resin
16 9006-03-5 Chlorinated rubber
17 13463-67-7 Titanium dioxide
18 12227-89-3 Iron Oxide Black
19 922-67-8 Methylpropiolate
20 538-24-9 Trilaurin
21 9011-05-6 Urea formaldehyde
22 79-41-4 Methacrylic acid
23 1314-13-2 Zinc oxide
24 80-05-7 Bisphenol A
25 121-91-5 Isophthalic acid

The primary use of Ammonium Sulphate is as a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth. The main disadvantage to the use of Ammonium Sulphate is its low nitrogen content relative to Ammonium Nitrate, which elevates transportation costs.
It is also used as an agricultural spray adjuvant for water soluble insecticides, herbicides, and fungicides. There it functions to bind iron and calcium cations that are present in both well water and plant cells. It is particularly effective as an adjuvant for 2,4-D (amine), glyphosate and glufosinate herbicides.

Name : Chrome Oxide
Percentage : 60%

2-Naphthol Basic information
Chemical Properties Application Preparation
Product Name: 2-Naphthol
Synonyms: c.i.37500;c.i.azoiccouplingcomponent1;c.i.developer5;Developer A;Developer AMS;Developer BN;developera;developerams
CAS: 135-19-3
MF: C10H8O
MW: 144.17
EINECS: 205-182-7
Product Categories: Fluorescent;Naphthalene;pigments;alcohol;MICROCIDIN;Color Former & Related Compounds;Developer;Functional Materials;Intermediates;Aromatic Compounds;Alphabetical;Bioactive Small Molecules;Biochemicals and Reagents;Building Blocks;C9 to C20+;Cell Biology;Chemical Synthesis;Fluorescent Indicators and Probes;Fluorescent Probes;Labels;N;Organic Building Blocks;Oxygen Compounds;Particles and Stains;pH Sensitive Probes and Indicators;Phenols;Dyestuff Intermediates;Aromatics
Mol File: 135-19-3.mol


2-Naphthol Chemical Properties
Melting point 120-122 C(lit.)
Boiling point 285-286 C(lit.)
density 1,28 g/cm3
vapor density 4.97 (vs air)
vapor pressure 10 mm Hg ( 145.5 C)
refractive index 1.5762 (estimate)
Fp 153 C
storage temp. Refrigerator
solubility methanol: soluble1g/10 mL, clear, colorless to light yellow
pka 9.51(at 25C)
form Powder, Crystals or Granules
color White
PH Range Non& uorescence (8.5) to blue & uorescence (9.5)
Water Solubility 1 g/L (20 C)
�»max 226nm, 265nm, 275nm, 286nm, 320nm, 331nm
Merck 14,6384
BRN 742134
Stability: Stable. Combustible. Dust may form explosive mixture with air. Incompatible with strong oxidizing agents, phenol.
Major Application Display device, semiconductors, photoimaging materials, inks, toner, chalk, security paper, molding materials, tin plating method, rubber, adhesive, leather, detergent, hair dyes, antimitotic drug, anticancer agent, antiinflammatory agent, treatment of acne vulgaris (pimples) and other dermal ailments (rashes, scratches, blemishes, hair loss), disorders
InChIKey JWAZRIHNYRIHIV-UHFFFAOYSA-N
CAS DataBase Reference 135-19-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Naphthalenol(135-19-3)
EPA Substance Registry System 2-Naphthalenol (135-19-3)

Safety Information
Hazard Codes Xn,N
Risk Statements 20/22-50
Safety Statements 24/25-61
RIDADR UN 3077 9/PG 3
WGK Germany 2
RTECS QL2975000
F 8
Autoignition Temperature 430 C
TSCA Yes
HazardClass 9
PackingGroup III
HS Code 29071590
Hazardous Substances Data 135-19-3(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 1960 mg/kg LD50 dermal Rabbit > 10000 mg/kg


2-Naphthol Usage And Synthesis

2-Naphthol Preparation Products And Raw materials

1. Product name: Ammonium bisulfite solution
2. Molecular formula: NH4HSO3
3. Molecular weight: 99.10
4. Physical and chemical properties: light yellow liquid, with a little sulfur dioxide odor. Relative density (70%) : 1.4.
5. Technical index:

Item Photographic grade
Appearance clear light yellow liquid
Content w/w % 68-72
pH value (stock solution 20C) 4.0-6.0
Iron (Fe) w/w % 0.001

6. Packing: 270kg plastic drum, 1.25MTS/IBC

7. Uses: in synthesizing dye intermediate, surfactant, herbicide, reducing agent in pharmaceutical industry, etc.

Calcium thiosulfate solution
CAS NO .: 10124-41-1
Molecular formula: Ca2S2O3
Molecular weight: 152.208
Physical and chemical properties: colorless transparent liquid, non-dangerous goods
Use: used in medicine, agriculture and other fields
Packing:1240kg IBC drum

Product specifications:
Appearance Clear transparent liquid
Content Ca2S2O3 % 24%
S 12.4
Lead ppm 1
Mercury ppm 1
Iron ppm 0.01
pHï¼ 20 6.5-9.0