CN100494997C - Khotan jade dyeing quick identification method - Google Patents

Khotan jade dyeing quick identification method Download PDF

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Publication number
CN100494997C
CN100494997C CNB2007101852070A CN200710185207A CN100494997C CN 100494997 C CN100494997 C CN 100494997C CN B2007101852070 A CNB2007101852070 A CN B2007101852070A CN 200710185207 A CN200710185207 A CN 200710185207A CN 100494997 C CN100494997 C CN 100494997C
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Prior art keywords
khotan jade
jade
dyeing
absorbent cotton
khotan
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CNB2007101852070A
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CN101149348A (en
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高磊红
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Hebei University of Science and Technology
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Hebei University of Science and Technology
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Abstract

The invention discloses a kind of quick identification method for the HeTian jade coloration. Firstly it cleans the jade surface and then reacts with the Fe3+ by the ammonium sulfocyanate or potassium rhodanate in acidic condition to form the rusty complex compound which proves the stone has been colored by the Fe2O3. Cleaning the surface regent by the pledget or absorbent paper and observing the color of them, if the color is rusty, the jade has been colored or the jade has not been colored. Because the true jade with red skin, the Fe2O3 is penetrated to inner, the sulfocyanate can not react with it to form rusty. So the identification method can identify if the jade has been colored and the method is quick and simple.

Description

The method for quick identification of Khotan jade dyeing
Technical field
The present invention relates to a kind of discrimination method of jade, especially a kind of method of differentiating whether Khotan jade is colored.
Background technology
The beautiful quality exquisiteness of hotan, gloss moistens, and matter is hard and be imbued with toughness, belongs to superfine product in the jade.Because it is its mineral products rareness is excavated difficulty, goes through collection in thousands of years in addition, day by day rare, thereby more apparent famous and precious.Khotan jade is according to the difference on output ground, can be divided into mountain material, mountain flowing water, son and expect three types.Son material claims Ziyu again, and fish for Ziyu beautiful korneforos under the Kun Lun Mountain, its hard and compact, fine and smooth gentle, gloss such as fat.The Ziyu that has has leather of all kinds because of long period of soaking in containing phreatic native sand, the feature of this kind Ziyu is that the mountain material is unexistent.The mountain material claims the mountain jade again, refers in particular to the primary ore that originates on the mountain, and often not as the son material, mountain flowing water promptly refers to primary ore through the weathering avalanche to quality, and effluent water is carried to the jade of river middle and upper reaches.Mountain flowing water price is lower than Ziyu, but higher than the mountain material.
Rising in recent years the wind of one collection jade material, son is expected the price continuous rise.People note its color of the leather very much when selecting the beautiful son material of hotan, the formation of look skin, be since son material Khotan jade in the river course through the washing away of river 1 years, the iron protoxide in the jade is transformed into due to the di-iron trioxide under oxidizing condition.The Ziyu surface can form the leather of band look, and the mountain material does not then have.The Ziyu selling price of belt leather look will be higher than does not have the many of color of the leather.Wherein, people are most interested to red skin, as long as it is just very high to be stained with the price of red leather material.Therefore, some deliberately fake, and the mountain is expected that beautiful angle lap incarnadines, and pretends to be Ziyu.General false beautiful colouring method is: defective material or mountain jade are broken for the fritter building stones, after rounding is handled, building stones are immersed in the brownish red di-iron trioxide or iron filings of acidifying, or hot digestion, or bury, make di-iron trioxide be trapped in building stones surfaces and obtain the jade that dyes.
Really Ziyu and the dyeing Ziyu with red skin is differentiated.The look of corium is the long-term formation under field conditions (factors) of jade, and redness is goed deep into leather inside, is not to be trapped in the surface, the dyed imitation leather that obtains, and color stays in the surface of stone material and coarse recess.Experienced personage leans on naked eyes, or utilizes magnifier, and perhaps with feel, hardness, methods such as illumination just can be determined the true and false of Khotan jade.Can identify, but the collector of general Vegetarian gelatin does not accomplish by scientific methods yet.
Summary of the invention
The invention provides a kind of simple and can differentiate the method whether Khotan jade is colored fast.
The technical solution used in the present invention is: the method for quick identification of Khotan jade dyeing, and the step of its discrimination method is as follows:
1) the Khotan jade surface is cleaned, it is that the surfactant of 0.1~0.5mol/L drips the Khotan jade surface that is colored doubting that 1-5 is dripped concentration, after 0.5-1 minute, wipes with absorbent cotton or thieving paper; Because the jade surface often has grease, grease can play and the appreciation process in be delivered to the jade surface by staff, grease hinders contacting of reagent and jade, slows down the carrying out of reaction.Often contain the trace iron element in addition in the dust, disturb the carrying out of discrimination process, also need to remove.Therefore can remove the grease and the dust of jade surface adhesion by this step, avoid influence colour developing.Described surfactant can be selected surfactants such as negative ion, kation, both sexes and nonionic for use.As lauryl sodium sulfate (SDS) or hexadecyl trimethylamine or octyl phenyl polyoxyethylene ether or tween 1.
2) 1-3 being dripped sulfuric acid that concentration is 0.02-0.2mol/L or hydrochloric acid drips on Khotan jade surface that above-mentioned cleaning is crossed;
3) be to add the tackifying material in the ammonium thiocyanate solution of 0.01-0.1mol/L or the potassium rhodanide solution in concentration, make mixed solution, making the ultimate density of tackifying material in mixed solution is 0.01-0.5mol/L, then 1-3 is dripped this mixed solution and drips on above-mentioned Khotan jade surface; Because Ziyu is polymorphic less, the surface is mellow and full, and ammonium thiocyanate or potassium rhodanide drop are difficult in the jade surface and stop, and needs in ammonium thiocyanate solution or the potassium rhodanide solution to add the tackifying material for this reason, prevents the test solution trickling.The tackifying material can adopt natural gum, cellulose derivative, synthetic polymer etc., as pectin, agar, methylcellulose, hydroxyethyl cellulose, polyvinyl alcohol (PVA), carbomer etc.
4) after 0.5-1 minute, wipe the reagent on Khotan jade surface, observe the color of absorbent cotton or thieving paper with absorbent cotton or thieving paper, if absorbent cotton or thieving paper are dyed brownish red, Khotan jade then is described through dyeing,, illustrates that then Khotan jade is without crossing dyeing if absorbent cotton or thieving paper are not colored.
The present invention utilize ammonium thiocyanate or potassium rhodanide under acid condition with ferric ion reaction, generate henna complex compound and prove that stone material is dyeed by di-iron trioxide.Wherein, acid condition is provided by strong acid solution.Strong acid can use HCl or H 2SO 4, preferred H 2SO 4HCl or H 2SO 4Solution can also quicken the dissolving of di-iron trioxide except the acid condition that colour developing is provided, promote the carrying out of chromogenic reaction.Under the general condition, the di-iron trioxide that is trapped in stone surface is difficult to dissolving and removes, and is washing or cleans with washing agent and all to be difficult to remove and dissolving.Thiocyanic acid and ferric ion form the complex of dark brown red, maximum absorption wavelength 500nm.This chromogenic reaction is rapid, and formed complex is stable.Human eye is to the red sensitive of thiocyanic acid and ferric ion formation, and the colour developing phenomenon is observed easily.Really with the Ziyu of red skin, because the di-iron trioxide of trace is deep into son material inside, thiocyanic acid can not present brownish red with its reaction.Therefore utilize discrimination method of the present invention can identify Khotan jade fast and whether be colored, simple, the quick easily row of method.
Embodiment
Below in conjunction with embodiment the present invention is described in further details:
Embodiment 1:
The method step of differentiating Khotan jade dyeing fast is as follows:
1) lauryl sodium sulfate with 3 0.5mol/L drips the Khotan jade surface that is colored doubting, and after 1 minute, wipes with absorbent cotton;
2) sulfuric acid with 2 0.1mol/L drips on above-mentioned Khotan jade surface of nuzzling up;
3) configuration ammonium thiocyanate concentration is that 0.1mol/L, agar concentration are the mixed solution of 0.3mol/L, then this mixed solution is dripped 2 and drops in above-mentioned Khotan jade surface;
4) after 1 minute, wipe the reagent on Khotan jade surface, observe the color of absorbent cotton,, illustrate that then Khotan jade is through dyeing if absorbent cotton is dyed brownish red with absorbent cotton; If absorbent cotton is not colored, illustrate that then Khotan jade is without crossing dyeing.
Embodiment 2:
The method step of differentiating Khotan jade dyeing fast is as follows:
1) 2 0.1mol/L hexadecyl trimethylamines is dripped the Khotan jade surface that is colored doubting, after 1 minute, wipe with absorbent cotton;
2) sulfuric acid with 3 0.1mol/L drips on above-mentioned Khotan jade surface of nuzzling up;
3) configuration ammonium thiocyanate concentration is that 0.01mol/L, carbomer concentration are the mixed solution of 0.01mol/L, then this mixed solution is dripped 3 and drops in above-mentioned Khotan jade surface;
4) after 1 minute, wipe the reagent on Khotan jade surface, observe the color of absorbent cotton,, illustrate that then Khotan jade is through dyeing if absorbent cotton is dyed brownish red with absorbent cotton; If absorbent cotton is not colored, illustrate that then Khotan jade is without crossing dyeing.
Embodiment 3
The method step of differentiating Khotan jade dyeing fast is as follows:
1) Tween-80 with 2 0.2mol/L drips the Khotan jade surface that is colored doubting, and after 1 minute, wipes with absorbent cotton;
2) sulfuric acid with 2 0.02mol/L drips on above-mentioned Khotan jade surface of nuzzling up;
3) configuration ammonium thiocyanate concentration is that 0.1mol/L, polyvinyl alcohol concentration are the mixed solution of 0.05mol/L, then this mixed solution is dripped 2 and drops in above-mentioned Khotan jade surface;
4) after 1 minute, wipe the reagent on Khotan jade surface, observe the color of absorbent cotton,, illustrate that then Khotan jade is through dyeing if absorbent cotton is dyed brownish red with absorbent cotton; If absorbent cotton is not colored, illustrate that then Khotan jade is without crossing dyeing.
Embodiment 4
The method step of differentiating Khotan jade dyeing fast is as follows:
1) the octyl phenyl polyoxyethylene ether with 1 0.3mol/L drips the Khotan jade surface that is colored doubting, and after 0.5 minute, wipes with absorbent cotton;
2) sulfuric acid with 2 0.05mol/L drips on above-mentioned Khotan jade surface of nuzzling up;
3) configuration potassium rhodanide concentration is 0.15mol/L, and methylcellulose concentration is the mixed solution of 0.2mol/L, then this mixed solution is dripped 2 and drops in above-mentioned Khotan jade surface;
4) after 0.5 minute, wipe the reagent on Khotan jade surface, observe the color of absorbent cotton,, illustrate that then Khotan jade is through dyeing if absorbent cotton is dyed brownish red with absorbent cotton; If absorbent cotton is not colored, illustrate that then Khotan jade is without crossing dyeing.
Embodiment 5
The method step of differentiating Khotan jade dyeing fast is as follows:
1) lauryl sodium sulfate with 3 0.1mol/L drips the Khotan jade surface that is colored doubting, and after 0.5 minute, wipes with absorbent cotton;
2) hydrochloric acid with 1 0.2mol/L drips on above-mentioned Khotan jade surface of nuzzling up;
3) configuration potassium rhodanide concentration is 0.1mol/L, and hydroxyethyl cellulose concentration is the mixed solution of 0.1mol/L, then this mixed solution is dripped 1 and drops in above-mentioned Khotan jade surface;
4) after 0.5 minute, wipe the reagent on Khotan jade surface, observe the color of absorbent cotton,, illustrate that then Khotan jade is through dyeing if absorbent cotton is dyed brownish red with absorbent cotton; If absorbent cotton is not colored, illustrate that then Khotan jade is without crossing dyeing.
Embodiment 6
The method step of differentiating Khotan jade dyeing fast is as follows:
1) lauryl sodium sulfate with 1 0.4mol/L drips the Khotan jade surface that is colored doubting, and after 1 minute, wipes with absorbent cotton;
2) hydrochloric acid with 3 0.05mol/L drips on above-mentioned Khotan jade stone surface of nuzzling up;
3) configuration potassium rhodanide concentration is 0.05mol/L, and concentration of pectin is the mixed solution of 0.5mol/L, then this mixed solution is dripped 3 and drops in above-mentioned Khotan jade surface;
4) after 0.5 minute, wipe the reagent on Khotan jade surface, observe the color of absorbent cotton,, illustrate that then Khotan jade is through dyeing if absorbent cotton is dyed brownish red with absorbent cotton; If absorbent cotton is not colored, illustrate that then Khotan jade is without crossing dyeing.

Claims (5)

1, the method for quick identification of Khotan jade dyeing is characterized in that described discrimination method step is as follows:
1) the Khotan jade surface is cleaned, it is that the surfactant of 0.1~0.5mol/L drips the Khotan jade surface that is colored doubting that 1-5 is dripped concentration, after 0.5-1 minute, wipes with absorbent cotton or thieving paper;
2) 1-3 being dripped sulfuric acid that concentration is 0.02-0.2mol/L or hydrochloric acid drips on Khotan jade surface that above-mentioned cleaning is crossed;
3) be to add the tackifying material in the ammonium thiocyanate solution of 0.01-0.1mol/L or the potassium rhodanide solution in concentration, make mixed solution, making the ultimate density of tackifying material in mixed solution is 0.01-0.5mol/L, then 1-3 is dripped this mixed solution and drips on above-mentioned Khotan jade surface;
4) after 0.5-1 minute, wipe the reagent on Khotan jade surface, observe the color of absorbent cotton or thieving paper with absorbent cotton or thieving paper, if absorbent cotton or thieving paper are dyed brownish red, Khotan jade then is described through dyeing,, illustrates that then Khotan jade is without crossing dyeing if absorbent cotton or thieving paper are not colored.
2, the method for quick identification of Khotan jade dyeing according to claim 1, it is characterized in that: described surfactant is anionic surfactant, cationic surfactant, zwitterionic surfactant or non-ionic surfactant.
3, the method for quick identification of Khotan jade dyeing according to claim 1 and 2, it is characterized in that: described surfactant is lauryl sodium sulfate or hexadecyl trimethylamine or octyl phenyl polyoxyethylene ether or Tween-80.
4, the method for quick identification of Khotan jade dyeing according to claim 1, it is characterized in that: described tackifying material is natural gum, cellulose derivative or synthetic polymer.
5, according to the method for quick identification according to claim 1 or 4 described Khotan jade dyeing, it is characterized in that: described tackifying material is pectin or agar or methylcellulose or hydroxyethyl cellulose or polyvinyl alcohol (PVA) or carbomer.
CNB2007101852070A 2007-11-08 2007-11-08 Khotan jade dyeing quick identification method Expired - Fee Related CN100494997C (en)

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