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硬脂酸 stearic acid ( 十八酸, 己基癸醇硬脂酸酯) soap-diy.com # H- M* t7 M9 T2 v* t

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很少單獨存在於自然界裡,並非化學合成物,常以甘油酯的形態存在,硬脂酸在自然界的分布很廣,
: Y) F3 O  n; R4 O0 R soap-diy.com 存在於許多植物性油脂和動物性油脂中。 soap-diy.com 5 C/ x2 K; G$ H7 W5 r


+ f9 o7 J- ?# b7 Q: w soap-diy.com 動物脂肪中的含量比在植物油脂中的含量要高,如牛油中的含量可達24%,茶油為0.8%,棕櫚油為6% soap-diy.com ( E* C7 S: N, F; D
,但可可脂中的含量高達34%。 soap-diy.com 8 p" j2 {5 A  P


3 l. f2 A% q4 U( u soap-diy.com 硬脂酸實際上是45%硬脂酸和55%軟脂酸的混合物,並含有少量油酸,略帶脂肪氣味
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生產方式
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動物油與水在高溫高壓下反應,使甘油三酸酯水解。不飽和植物油與氫氣加成得到。 soap-diy.com 7 Z# A; n) h. _3 d
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. j2 X, z% M9 @4 R soap-diy.com 硬脂酸在手工皂的應用主要是增加皂成品硬度。 soap-diy.com ' V4 F& H  J, Z) \

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添加硬脂酸的手工皂成品,有刺激皮膚的可能性,也比較容易阻塞毛孔。
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硬脂酸添加比例為3%~5%。
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建議計算氫氧化鈉時,計入硬脂酸皂化價 soap-diy.com : q0 F9 [) \8 e  i; S


$ x0 g/ b" `5 v soap-diy.com 添加硬脂酸方式,純硬脂酸融點69.4度,可先與耐熱油脂熱融,如椰子油棕櫚油,一起加熱融好,再跟其他油ㄧ起融鹼。
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根據皂友心得:如沒併入一起計算ins值,可將計算後約INS90的手工皂配上3%硬脂酸,就可有理想的硬度。

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詢問商家的硬脂酸是那一種等級,應該是要買化妝品級的硬脂酸,購買三壓等級。
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硬脂酸在手工皂的功能是增加皂的硬度。
. Y8 f$ g/ n& I) E. R4 E- p0 e soap-diy.com 操作方式 : 可先與耐熱的油一起熱融後再與其他的油一起融鹼,如融鹼後才加入,會加快Trace,需小心有假
Trace情況發生。
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/ E1 ]+ @3 C* m& t soap-diy.com 硬脂酸(三壓級) soap-diy.com * g" Y: S3 y; y  r+ w" \0 h
STEARIC ACID


! ?/ p' O% W2 H/ Z+ t$ Q: M* T soap-diy.com soap-diy.com * P! g% u8 M! f! R; z1 ~
Specs No.:703-28602 Product Code:SA1801 Product Form:Beads

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Property: soap-diy.com 2 B4 N4 ^; b% a; U. l- T" R/ _
Acid Value 酸值201-213
. x) g* k- b, u soap-diy.com Sapon Value 皂化值202-214 soap-diy.com ) ]% ?1 D7 _' W3 \0 S
Iodine Value 碘值1.0max.
# h+ m' e+ J& q: H. G soap-diy.com Titer(℃) 熔點54-56 soap-diy.com ; \* I7 D2 Y8 _) u! `9 [3 J
Colour(5 1/4"Lovibond) 顏色Yellow 2.0max. Red 0.5max. soap-diy.com 1 ^6 `" B" O" S! f
& t$ l" T- u/ r  J soap-diy.com soap-diy.com 2 }% `; w5 T3 ~1 x$ u6 Z3 l
Composition(in%) Approx: soap-diy.com 8 W3 q5 {  |9 O* w8 z
C12(Lauric)& Lower1max.
2 U2 B5 g+ E1 [3 X4 v soap-diy.com C14(Myristic)2max. soap-diy.com + q9 S; U, ~; n0 Y6 R( v
C16(Palmitic)68max. soap-diy.com 7 p2 ~0 D8 w1 j6 f5 z! J
C18(Stearic)30min. soap-diy.com $ a  k) j7 a7 v5 s0 X
C20(Arachidic)1max.
% U# J: B) ~3 H; m$ B/ z. V soap-diy.com C18'(Oleic)1max. soap-diy.com 7 H$ F* D7 g6 z) [8 b; ?1 k+ b5 R$ K soap-diy.com   o0 r+ H7 u* @# \% G9 e
Standard Packing: -- 25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag soap-diy.com # u1 O( O7 T9 {# M. Q1 t
Test Method:AOCS
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硬脂酸(二壓級)
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STEARIC ACID
. y' P* q/ m2 E9 C soap-diy.com Specs No.:703-28603 Product Code:SA1806 Product Form:Beads

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0 _4 g. e2 ~7 R: W0 v2 n$ O+ j soap-diy.com Property: soap-diy.com % b( [* O- b) W
Acid Value 酸值207-214 soap-diy.com % s8 I$ v7 Y+ d" |& R8 v% {. z1 Y
Sapon Value 皂化值208-215 soap-diy.com 6 z$ O& |5 g. q' D' t1 o
Iodine Value 碘值3.0max.
& _" }; E( @/ `3 {) d+ A% ?2 D soap-diy.com Titer(℃) 熔點53min. soap-diy.com " m& d+ `# C% _) k* R$ C
Colour(5 1/4"Lovibond) 顏色Yellow 5.0max. Red 1.5max. soap-diy.com $ o& a1 m4 t  q! X  M soap-diy.com ) G  F! l4 a  [/ l. P
4 Q; y1 I& l# k  V( O' M- Y) [& F0 } soap-diy.com Composition(in%) Approx:
( V* z# f( W% d; I" _ soap-diy.com C12(Lauric)& Lower1max. soap-diy.com ; J+ k# B: F( Z0 U
C14(Myristic)2max.
- u9 Y, B5 {' k" _0 x, d2 |* X- B: v soap-diy.com C16(Palmitic)70max.
. g4 h7 p  o- D soap-diy.com C18(Stearic)29min. soap-diy.com 0 F8 [& l# J+ O7 m  u% ?
C20(Arachidic)1max.
; b& i& b' |9 z5 V7 p6 u soap-diy.com C18'(Oleic)3max. soap-diy.com 3 U( ^, U& f; o( N2 q- L. U
2 X3 }2 O9 a* p) h soap-diy.com Standard Packing: -- 25kgs net. in PP Woven with PE inner bag -- 600kgs net. in jumbo bag
; g& {) B9 c) M3 y$ L6 \- \0 Q0 e soap-diy.com Test Method:AOCS
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; g7 j' n, Q4 b) z4 ?& E2 P soap-diy.com soap-diy.com 4 ]* Q# T/ @2 t  D' o; R% A: t' _
硬脂酸(一壓級)
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STEARIC ACID soap-diy.com ( ]+ R" j8 N, r) ]8 H+ X
Specs No.:703-28604 Product Code:SA1810 Product Form:Beads

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4 D  R8 y7 Z! v% k/ A& X9 u soap-diy.com Property: soap-diy.com / Z$ Y5 |& }8 g" e5 o6 k/ @! Y
Acid Value 酸值185min.
" |( Q* S9 A% i2 [ soap-diy.com Sapon Value 皂化值186min.
6 r, N+ p2 p1 j8 V5 W soap-diy.com Iodine Value 碘值10max.
8 H7 R: `% r& ~7 ?: s# t; F3 H9 D soap-diy.com Titer(℃) 熔點50min.
! R6 a. P8 C# Q soap-diy.com Colour(Gardner) 顏色7Gardner max. soap-diy.com 2 K5 f% X& }0 ^" v soap-diy.com 5 Z0 l) p( Y2 o# U
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Composition(in%) Approx: soap-diy.com 3 U0 W; j/ O9 C" K- ~! |4 u# Q, z
C12(Lauric)& LowerVariable soap-diy.com $ W3 U# D: ~- |: s1 P5 _: l- R
C14(Myristic)Variable soap-diy.com 2 J- J2 B' ?. }7 @( _2 o
C16(Palmitic)Variable soap-diy.com * ^: M/ }$ i" Y$ o2 A# W* t
C18(Stearic)Variable
" n) ~* m; C& C5 m soap-diy.com C20(Arachidic)Variable
6 Z2 r5 y# e+ ~2 C soap-diy.com C18'(Oleic)Variable soap-diy.com + _2 I3 {) w- j. Q1 U soap-diy.com ( w: t) e# g+ A* b2 Q
Standard Packing: -- 25kgs net. in PP Woven with PE inner bag -- 600kgs net. in jumbo bag soap-diy.com ' O+ w( ~& ~% [3 c. X) F7 u
Test Method:AOCS
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+ Y' W% l; }/ a2 D7 S1 v: P soap-diy.com 硬脂酸(分餾三壓級) soap-diy.com % s& T9 R: m( y  Q; e9 z
STEARIC ACID
  j3 h! H3 X% w" |+ A soap-diy.com Specs No.:703-28605 Product Code:SA1840 Product Form:Beads

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Property: soap-diy.com 4 Q# y* ^$ \" o' \7 n! r$ G
Acid Value 酸值200-212 soap-diy.com " E) c/ I$ y2 y. V2 R
Sapon Value 皂化值201-213 soap-diy.com . T4 Y" y: u7 Q. i
Iodine Value 碘值1.0max.
1 r" ^( j5 {9 C; O+ T8 A' m; D" _/ E% x soap-diy.com Titer(℃) 熔點55-57
. f3 \- V" n) H3 k0 J4 k soap-diy.com Colour(5 1/4"Lovibond) 顏色Yellow 2.0max. Red 0.5max. soap-diy.com 3 G$ L( S5 z2 k  v. V
5 R+ E1 t/ \8 s7 H  J1 { soap-diy.com / ?4 d1 T" ^" z$ T/ U5 h soap-diy.com Composition(in%) Approx:
5 O5 y0 x+ t3 C0 X9 k' W( i  z soap-diy.com C12(Lauric)& Lower1max. soap-diy.com - T% K+ r3 j8 o' o- B6 Y
C14(Myristic)2max. soap-diy.com 1 E7 {: s, R& W/ W+ i6 V
C16(Palmitic)60max.
) D; H3 B5 {+ u soap-diy.com C18(Stearic)40min. soap-diy.com 2 i- c. Y. ]5 q+ J' m7 ^) V
C20(Arachidic)1max.
- f; C2 b8 T7 {5 _8 t soap-diy.com C18'(Oleic)1max. soap-diy.com . X+ M. ~: \& X" W1 u+ t
1 Z0 d4 f5 R# j7 }7 U. b soap-diy.com Standard Packing: --25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag
# |6 \* Y3 @" @! G  A soap-diy.com Test Method:AOCS
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. d" P" l! S+ \ soap-diy.com 硬脂酸(分餾三壓級) soap-diy.com 4 d8 A( J5 |; E' ]
STEARIC ACID
! ~0 Z3 g" o4 |" r4 F soap-diy.com Specs No.:703-28606 Product Code:SA1850 Product Form:Beads

0 {7 ?# S- I. q5 w; k% _ soap-diy.com . v* e$ Z6 b: @; C soap-diy.com Property:
$ J; i- q- L; V/ v6 F! X3 G soap-diy.com Acid Value 酸值198-210 soap-diy.com 1 V" i5 l; Q. D, [$ \6 D
Sapon Value 皂化值199-211
4 G- V6 J$ y! l1 V3 R6 a/ d soap-diy.com Iodine Value 碘值1.0max. soap-diy.com % j1 N' k9 B& _9 i; q
Titer(℃) 熔點55-58 soap-diy.com 4 w9 l5 i1 t/ ~5 C, t
Colour(5 1/4"Lovibond) 顏色Yellow 2.0max. Red 0.5max. soap-diy.com - z+ Y/ S8 O  w$ G, b7 _$ ? soap-diy.com # H, O( j4 k1 D; G0 o
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Composition(in%) Approx:
/ q; O( k3 w8 i# s2 D  K soap-diy.com C12(Lauric)& Lower1max.
/ K9 S+ W- Y$ M' S7 d# h8 V' l; T soap-diy.com C14(Myristic)2max. soap-diy.com + C+ D" Q1 j' {$ N) a9 E
C16(Palmitic)53max.
8 c0 n5 ^' O' g6 F6 K- | soap-diy.com C18(Stearic)47min.
7 J/ g2 u1 z# x, c soap-diy.com C20(Arachidic)1max.
/ x2 W+ j4 H7 Y& T/ c soap-diy.com C18'(Oleic)1max.
1 S- o8 i4 o: L; n soap-diy.com soap-diy.com " e  D7 i; o5 |
Standard Packing: --25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag soap-diy.com , D, \& ?% t% m0 G% f
Test Method:AOCS soap-diy.com 1 r! a# U) [/ U# M

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硬脂酸(分餾三壓級)
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STEARIC ACID soap-diy.com   h' o& _( M2 E, i1 R1 ~1 K
Specs No.:501-38608 Product Code:SAF1865 Product Form:Beads

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2 f1 A7 ?" G1 |2 S  o" V soap-diy.com Property:
& |3 H) c' e: W4 p soap-diy.com Acid Value 酸值200-208
( V5 d) |5 q6 H8 O" i: C soap-diy.com Sapon Value 皂化值201-209
9 }0 f" l% T8 K8 s5 z! ~% T soap-diy.com Iodine Value 碘值1.0max. soap-diy.com 9 T( C5 Y6 H5 }$ G! F0 G
Titer(℃) 熔點57-61 soap-diy.com $ E6 M3 K+ l& Q  l0 ?* h7 Q
Colour(5 1/4"Lovibond) 顏色Yellow 3.0max. Red 0.5max. soap-diy.com 9 N8 V1 Q9 H2 U( [ soap-diy.com ' L, U+ P$ {3 j# G
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Composition(in%) Approx:
9 \0 H; N9 L' J0 ?4 P1 i soap-diy.com C14(Myristic)0-1
1 w0 p. s9 Y' ~: f+ @ soap-diy.com C16(Palmitic)30-38 soap-diy.com * L8 b! ^6 B& r6 B. k: t
C18(Stearic)62-70 soap-diy.com 9 g: J& L  |6 `5 U+ E& ~
C18'(Oleic)0-1
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Standard Packing: --20kgs net.in multiply kraft paper bags --25kgs net. in PP Woven with PE inner bag --600kgs net. in jumbo bag soap-diy.com ( }, }3 ~0 q) g5 y
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Test Method:AOCS soap-diy.com % F1 ?0 Y, ^7 B+ R; y* H4 q, |0 }

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