|
1,5-NAPHTHALENE DIISOCYANATE 714
<br /> 1,5-naphthalene diisocyanate C,oH6(NCO)2. White crudes are relatively high in these acids. The com- fi 3-naphthol-2-carboxylic acid. See
<br /> to light yellow crystalline solid;m.p. 127-131°C. mercial grade is a mixture,usually of dark color and thoic acid.
<br /> Hazard:Toxic and irritant. unpleasant odor;corrosive to metals.The chief use
<br /> ' Naphthol Green B. A dye used ir.
<br /> Use: Manufacture of polyurethane solid elastomers. of naphthenic acids is in the production of metallic _ salt; it increases the evaporati
<br /> naphthenates for paint driers and cellulose preser- ? absorption of energy;naphthalene-1,5-disulfonic acid. See Armstrong's vatives.Other uses areas solvents,detergents,rubber p 5 ppm is$
<br /> acid. q" production from 15 to 20%.
<br /> reclaiming agent,etc.
<br /> naphthalene-2,7-disulfonic acid C,oH6(So3H)2. i, naphthionlc acid (1-naphthylamine4-sulfonic acid; beta-naphthol methyl ether. S.
<br /> Properties: White crystalline solid;soluble in water. I-arninonaphthalene-4-sulfonicacid;4-amino-1-naph- `. methyl ether.'
<br /> Combustible. µ
<br /> thalenesulfonic acid) ;beta-naphthol sodium. See sodi
<br /> Derivation:Sulfonation of naphthalene at high tem-
<br /> late.
<br /> i
<br /> perature and separation from 2,6-isomer. NH,
<br /> Hazard: May be toxic. -`4, naphtholsulfonic acid. Anyofsevc
<br /> Use: Intermediate for dyes. / " matic acids derived from alpha-c
<br /> ,;Y�'naphthalene and used as azo
<br /> alpha-naphthalenesulfonie acid GoH3SOiH-HiO.
<br /> Properties: Deliquescent crystals; soluble'in water, .
<br /> alcohol,and ether. M.p.90°C.Combustible. ii S03H 1,2-naphthoquinone (beta-naphtlr
<br /> Derivation: Interaction of naphthalene and sulfuric p Ca01`403-
<br /> acid. Properties: White crystals or powder; soluble in properties:Yellow crystals;m.p.I:
<br /> Hazard: Maybe toxic.
<br /> water;slightly soluble in alcohol and ether. ,' in ether,benzene alcohol.
<br /> Uses: Startingpoint in the manufacture of alpha- Derivation: Heating equimolar amounts of alpha- Hazard:Toxic and irritant.
<br /> naphthol,alpha-naphtholsulfonic acid,alpha-naph- naphthylamine and H2SO4 at 180°C at 10 to 15 mm "Uses:Chemical reagent and inters
<br /> thylaminesulfonic acid; solvent (sodium salt).for (several hours). :
<br /> phenol in the manufacture of disinfectant soaps. Uses:Intermediate for azo dyes,e.g.,Congo Red. 1,4-naphthoquinone (alpha-naph
<br /> C,oHaO2.
<br /> beta-naphthalenesulfonle acid C,oH7SO3H or alpha=naphthol (I-naphthol;I-hydroxynaphthalene) properties:Yellow powder;odor l
<br /> C,oH,SOsH-H2O. GpH70H• m.p`.123-126°C;sublimes at 100`'
<br /> Properties:Non-deliquescent,white plates;,`m.p.124- Properties: Colorless or yellow prisms or powder; - in water; soluble in ethyl.alcc
<br /> 125°C.Soluble in water,alcohol,and ether. Com- disagreeable taste. Soluble in benzene,alcohol and chloroform benzene and acetic f'
<br /> bustible. ether;insoluble in water.Sp.gr.1.224(4°C),1.0954 ', Hazard:Toxic and irritant,
<br /> Derivation: Sulfonation of naphthalene. (95/4*C);m.p.96°C;b.p.278°C;volatile in steam; a Uses:Polymerization regulator fol
<br /> Hazard: May be toxic. � sublimes;refractive index 1.6206(96.7°Q.Combus- ester resins;synthesis of dyes ane
<br /> Uses: Starting point in the manufacture of beta- tible. fungicide;algicide.
<br /> naphthol,beta-uaphtholsulfonic acid,beta naphthyl- Derivation: By fusing sodium alpha-naphthalene
<br /> aminesulfonic acid;etc. sulfonate and caustic soda.The melt is decomposed naphthoquinone oxime. See 1-nj
<br /> with hydrochloric acid and distilled. 2=nitroso 1 naphthol.
<br /> 2-naphthslenethlol- See"RPA." i3 Hazard: Moderately toxic by ingestion and skin
<br /> 1;2-naphthoquinone-4-sulfon#c ac€i
<br /> 1,3,6-naphthalenestr€sulfonic acid,trisodium salt absorption. " qutnone-4-sulfonic acid)Goffs(G
<br /> Uses: Dyes;organic synthesis;synthetic perfumes.
<br /> CioHs(S03Na)3. Fine buff crystals. Used as a diazo Derivation:Oxidation with nitric i,
<br /> type stabilizer. ' beta-naphthol (2-naphthol; 2-hydroxynaphthalene) __naphthol4-sulfonic acid or t-am
<br /> 1,8-naphthalle acid anhydride C1=H603.,Ught tan ClpH70H, sulfonic acid.
<br /> powder; m.p. 268-270°C; used for dyestuffs; or- Properties: White, lustrous,bulky leaflets, or white Hazard: May be toxic.
<br /> powder; darkens with age; faint phenol-like odor; ,,,Uses:Dye intermediate;identifecati
<br /> genic synthesis in general. stable in air but darkens on exposure to sunlight;sp. derivatives.
<br /> "Naphthanil.n" Trademark for a series of dye bases. gr. 1.217; m.p. 121.6°C; b.p. 285°C;'flash point itaphthoresoreinol. See I,3-dihyd l
<br /> Prior to coupling the bases must first be diazotized 307°F(152.70 Q. Soluble in alcohol,ether,chloro- ,;. M
<br /> 1 to form the diazo salt.Widely used on cottonand form,glycerol, oils and alkaline solutions; almost beta-naphthoxyacetic acid (2-nap).
<br /> i. rayon textiles. Also represents a series of diazo insoluble in water. Combustible. GoH?OCH2CO0H.A plant groti'
<br /> pigments. Derivation:By fusing sodium beta-naphthalene sul- 'Properties: Crystals; m.p. 1560C.
<br /> naphtha,petroleum. See naphtha(I). fonate with caustic soda.The product is distilled in alcohol,acetic acid.
<br /> vacuo and then sublimed. :Uses: Rooting clippings; inhibits
<br /> naphtha,solvent. See naphtha(2b). Grades:Technical;sublimed;resublimed. `growth promoter.
<br /> naphtha,V.M.&P. Sec naphtha(la). Hazard:See alpha-naphthol. 1-naphthylacetic acid. See naphtha
<br /> Uses: Dyes;pigments,-antioxidants for rubber,fats,
<br /> naphthene. 'See cycloparaffin. The term naphthene oils, insecticides; synthesis of fungicides, pharrna- alpha-naphthylamine C oHTNHs.
<br /> is misleading and obsolescent. ceuticals,perfumes;antiseptic. Properties:White crystals becomin
<br /> G ''to air.Soluble in alcohol and etht
<br /> naphthenic acid. Any of a group of saturated higher ,.
<br /> fatty acids derived from the gas-oil fraction of naphthol AS. See beta-h droz a hthoic anilide. .`b.water.Flash point ible C.Sp..g,�
<br /> i petroleum by extraction with caustic soda solution p y p b.p..301°C.Combustible.
<br /> i and subsequent acidification.Gulf and West-coast beta-naphthol benzoate: See benzonaphthol. Derivation: Reduction of alpha-i
<br />
|